Areas and lines: simple solid model of a It is applied in a similar manner to beams. Supports: Pinned (UX and UY) at the rear axle Vertical (UY only) at the front axle Use proper UZ constraint in a 3D model to prevent rigid body motions without creating artificial stress. One- and two-dimensional elements are needed, so the basics of … BEAM188 with The Concrete portion was modeled by using a special element developed particularly for Concrete by ANSYS, SOLID 65 element. The contact between the mating plates is set to frictional. The BEAM189element is suitable for analyzing slender to moderately stubby/thick beam structures. ANSYS: Beam Element Stresses (PLLS) A two-dimensional approximation of a bicycle frame is shown in the figure. which can’t carry moments (i.e., have no bending DOF’s). membrane+bending stress in the pipe, pipe support loads, whip restraint loads, In the Preprocessor -> Element type -> Beam->i can see only 2d node 188 2d node 189 and 3d finite strain in Ansys 14.5. Understanding How FEA Calculates Stress Every node in a truss model is a ball and socket (or spherical) joint. Now, you need to mesh the cantilever beam so that the load applied on the beam can be distributed Uniformly on all elements and For Meshing any Component, you need to provide the “Element edge length” depending upon the component imported or drawn into the ANSYS Software. Are you finding it difficult to make the design in Space Claim Geometry? jobname, title, default directory. Change ), You are commenting using your Facebook account. For this problem static structural module of ANSYS is used. Section Data: Area, Added BEAM189 is based on Timoshenko beam theory, which is a first-order shear-deformation theory: transverse-shear strain is constant through the cross-section (that is, cross-sections remain plane and undistorted after deformation).. SECTYPE – pick from predefined list for cross section, e.g. The analysis uses advanced modeling techniques including contact, element birth and death, mixed u-P formulation, and nonlinear stabilization. This is so because it has a very poor nodal resolution. The simulation also include seismic loading (earthquake), as Can anyone help me include beam element 2d elastic 3. Finite element analyses are computed for a variety of mesh geometrys, and compared against the results for ANSYS-5.0 shell element, and the SAP-90 shell element. The element provides options for unrestrained warping and restrained warping of cross-sections. When KEYOPT(1) = 1, a seventh degree of freedom (warping magnitude) is also considered. Z. In recent versions of ANSYS bolt pretension can be applied on beam bolts. Use only one element between pins. nodes (element x-axis). keypoint), ANSYS 13.0 Structural Analysis Guide, However, if you need to create a BEAM4, for instance, on a recent Ansys version, you may write a command line: et, 200, BEAM4 (Where 200 is the element type number). Contact between bolt and flange, nut and bolt are defined as bonded with asymmetric behaviour. For composite beams, the C-R steel sheet trough and braces were modeled by using SHELL 63 element in ANSYS. The element has six degrees of freedom at each node.Has large deflection . BEAM188 is a 2-node linear or quadratic beam element in 3-D See Section 14.3 of the ANSYS Theory Reference for more details about this element. New bolt thread contact technique in ANSYS 15.0 is applied to model the contact between bolt and nut, similar to Bolt Model 3 (recommended 4 elements span 1 thread width). BEAM3 – 2-D Elastic Beam Case 1: Point Load on Centre of a Cantilever Beam Figure 01 shows an overview of the beam problem for load case 1 (point load) and figure 02 shows a representative finite element model for this load case. This course is designed for users of ANSYS Mechanical that have a need to use beam and shell modeling techniques for structural analysis. Now, you need to mesh the cantilever beam so that the load applied on the beam can be distributed Uniformly on all elements and For Meshing any Component, you need to provide the “Element edge length” depending upon the component imported or drawn into the ANSYS Software. For that go to Work… 3) Spring Bolts. BEAM4 – 3-D Elastic Beam Element with tension-compression and bending capabilities.The element has plastic, creep, and swelling capabilities. models ? Other -D beam elements are the plastic beam 2 BEAM23( ) and the tapered … elements: 42 straight pipe element that could yield Elements Used in Structural Analyses. Mechanical is a dynamic environment that has a complete range of analysis tools from preparing geometry for analysis to connecting additional physics for even greater fidelity. section shape and offset defined. Chapter 1. If these effects are not needed, BEAM3, the 2-D elastic beam, may be used. PIPE16, PIPE20, PIPE60 have been replaced with PIPE288 and ELBOW290]. In this blog, we will learn to find out the natural frequency of cantilever beam using Ansys as well as Matlab code. A beam of needed geometry should be modelled either in ANSYS or has to be imported after modelling in a CAD software. The beam element is a one-dimensional line element in space. properties. ANSYS Truss elements: LINK180 (3D) Every node in a truss model is a ball and socket (or spherical) joint. You may recall that a beam is a structural element whose length is … 34 contact elements to contain dangerous pipe whip (CONTAC52). BEAM4 is a uni-axial element with tension, compression, torsion, and bending capabilities. Introduction: In this example you will learn to use the 2-D Beam element in ANSYS. Guidelines for developing finite element models for reinforced concrete bridges were discussed. BEAM23 – 2-D Plastic Beam The third type of bolted connection is a spring bolt. ANSYS Mechanical Beams and Shells Modeling Overview. If the vertex at the end of a beam is put in bonded contact with the face of a solid, a non-default choice for the formulation is to use a Beam setting. BEAM3 is a uni-axial element with tension, compression, and bending capabilities. dimension of beam cross-section. Results needed: membrane stress and This element is well-suited for linear, large rotation, and/or large strain nonlinear applications. Thin-shell elements are abstracted to 2D elements by storing the third dimension as a thickness on a physical property table. BEAM189 Element Technology and Usage Recommendations. Single beam 188 element created between mobile/reference geometry; The beam’s neutral axis is (default) along the line of Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on WhatsApp (Opens in new window), Cryogenic conditioning of microencapsulated phase change material for thermal energy storage, Finally the Long wait is over ! Finite element analysis of stresses in beam structures 7 3 FINITE ELEMENT METHOD In order to solve the elastic problem, the finite element method will be used with modelling and discretization of the object under study. Switch Output to. Part of beam with same color shows that it has the same magnitude of that property. ANSYS has many other beam elements, but BEAM188 & 189 are generally recommended. Often use direct definition of nodes These are commonly Ansys Apdl Beam 189 September 17, 2018 - by Arfan - Leave a Comment Tutorial for ignment 2 gantry crane ysis by ansys ansys mechanical apdl 14 5 element reference structural beam ysis in ansys apdl structural beam ysis in ansys apdl s2 2d beam structure Mass (SECTYPE, SECDATA, SECCONTROL), DOFs: UX, UY, UZ, ROTZ, ROTY, ROTX (in 3D). BEAM189 is a 3 node quadratic beam element in 3-D rectangular beam. For BEAM188 & 189, ANSYS has 11 predefined sections, or you can sketch your Video: How to connect bonded contact with beam formulation in ANSYS Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Modelling two beams (Finite element model of the beams using volume elements (3D)) and apply static analysis and document the results (with screenshots from the program) in pdf. The element has three degrees of freedom at each node. The learning objective is to be able to run a Static Structural solution on a model composed of line (beam) and surface (shell) bodies. Then boundary conditions and loading conditions are to be given to the software. Elements i defined above are up to Ansys 11.0 version . Change ), You are commenting using your Twitter account. localized behavior. Problem Description: Enter your email address to follow this blog and receive notifications of new posts by email. This model is loaded with internal pipe BEAM44 How to make a "pin joint" on BEAM Ansys Mechanical is our dynamic, integrated platform that uses finite element analysis (FEA) for structural analysis. Target Application: Mechanical. Adding a 3rd node in the center of an element is so effective at increasing accuracy that the majority of FEA software including ANSYS start with a 3 node beam (BEAM3) as their simplest element. Alternatively in Ansys, if shear deflection is accounted for in the 1D element formulation, results for the beam’s tip deflection will not agree with tip deflections predicted by simple Euler-Bernoulli beam theory. Beam elements in ansys , it is important for a user to know the behavior of the element before defining it. Structural #5: Analysis of a 3-D Beam structure . Problem Description: The structure is made up of beams. Good day all, In the model that I am trying to develop I have a flexable body, the sidewall of a tyre (the crosshatched green body), that is in contact with a beam element, the bead of a tyre (yellow line at the center of the square hole) [see image below]. The cross-section details are provided separately via the SECTYPE and SECDATA commands. Alternatively in ANSYS, if shear deflection is accounted for in the 1D element formulation, results for the beam’s tip deflection will not agree with tip deflections predicted by simple Euler-Bernoulli beam theory. This course is meant to highlight where it is relatively straightforward to apply 3D FEA and resolve a … Steel.0833 in4. A one-dimensional structural beam element (often also known as a "simple beam" or "pure bending" element) will be used for this analysis. release, Beam Coordinate systems orient the element’s Truss (spar) elements are a subset of beam-type elements Section 1.2. Preprocessor>Sections>Beam>Common Sections, BEAM189 – 3-D Quadratic Finite Strain Beam pressure, temperature load which cause thermal expansion and effects material 0 0 10 E=30e6 =.28. Every thing is same as Beam 188. – Defines a local element type from the element library. ANSYS use different colors to define and show different sections of element with varying property. You can use the element in an axi-symmetric analysis if hoop effects are negligible, such as for bolts, slotted cylinders, etc and  must be create in XY plane. ( Log Out /  0 10 10 Beam 2. . This element is based on Timoshenko beam theory. Selection of proper element types is another important part in Finite Element Analysis. 1 in2. The element can be used for slender or stout beams. When KEYOPT(1) = 0 (the default), six degrees of freedom occur at each node. https://trivedigvn.wordpress.com/2012/02/10/element-typesbeam-in-ansys Nuclear piping network model: 122 nodes, 129 Change ). Each segment of the I-beam is modeled with five shell finite elements, four for the flanges, and 1 shell element for the I-beam web. called "two-force members", carrying only axial load. SECDATA – specify relevant data, e.g. In recent versions of ANSYS bolt pretension can be applied on beam bolts. Truss (spar) elements are a subset of beam-type elements which can’t carry moments (i.e., have no bending DOF’s). BEAM188 has six or seven degrees of freedom at each node, with the number of degrees of freedom depending on the value of KEYOPT(1). In earlier versions, APDL commands can be used. Tapered beam element .can use the beam tool to define a section and have real constants, BEAM54- 2-D Elastic Tapered Unsymmetric Beam Next we have to add geometry. ŒApplicable to most beam structures Œ Support linear as well as nonlinear analyses, including plasticity, large deformation, and nonlinear collapse The contact between the mating plates is set to frictional. well as a pressure wave transmitted in the fluid (both are dynamic conditions). (MASS21), 12 elastic pipe elements (PIPE16*), 15 support spring elements Notice the abrupt change in beam even after we have defined it as elastic. Key Words finite element method, FEM, model, ANSYS, SAP2000, bridge, reinforced concrete, fiber reinforced, FRP, composite, strengthening, strain 18. It can be used with any cross section that was defined using SECTYPE, SECDATA, SECOFFSET, SECWRITE, and SECREAD. 0 0 0 ANSYS. ( Log Out /  NOT useful for line element models. jobname.out [√] Append. 7680 load steps (earthquake, 30 seconds time history). and are efficient models, but are complex in usage (postprocessing - but is SHELL181 and BEAM188 model. Now you have to design an I-beam of following dimension; Here I made an I-beam of length 4 meters. It is applied in a similar manner to beams. In ANSYS 13, Y. box. 4.3 BEAM3 2-D Elastic Beam BEAM3 is a uniaxial element with tension, compression, and bending capabilities. Change ), You are commenting using your Google account. I only can send the exact description by e-mail. Shear deformation effects are included. FREE. This connects the line body end vertex to the solid face with a “spiderweb” of beam elements. Mechanical is a dynamic environment that has a complete range of analysis tools from preparing geometry for analysis to connecting additional physics for even greater fidelity. Login and access ANSYS - Start Menu/ Programs/ CAD Programs/ANSYS 9/ANSYS/ Change your. In earlier versions, APDL commands can be used. Material Props: Modulus, Density, ALPX, Shear Modulus, Special options: tapered sect., offset from nodes, moment PIPE16, PIPE20, PIPE60 have been replaced with PIPE288 and ELBOW290]. I have a university project in Ansys mechanical APDL (civil/structural engineering problem). Solve time ~15 minutes. Beam Coordinate systems orient the element’s y- and z-axes for moments IYY and IZZ (could be: strong and weak bending directions) The element has three degrees of freedom at each node: translations in the nodal x and y directions and rotation about the nodal z-axis. Again, attempts to capture this effect by using more elements will ultimately fail. Stent Simulation with Beam Elements This example problem demonstrates how to simulate stent-artery interaction during and after stent placement in an occluded artery. 17. (PIPE20*), 8 pipe elbows that could yield (PIPE60*), 10 lumped mass elements Shell and beam elements are abstractions of the solid physical model. The Second ODI looks like a recap of first ODI. Custom Sections, ANSYS: uses an "extra" node (K) (or As in updated Ansys version they are being eliminated and only Beam 188 and Beam 189 are available so it is important to concentrate on their theory and behavior, BEAM188 -3-D Linear Finite Strain Beam Alternatively in ANSYS, if shear deflection is accounted for in the 1D element formulation, results for the beam’s tip deflection will not agree with tip deflections predicted by simple Euler-Bernoulli beam theory. Beam elements in ansys , it is important for a user to know the behavior of the element before defining it. The learning objective is to be able to run a Static Structural solution on a model composed of line (beam) and surface (shell) bodies. ( Log Out /  The element has three degrees of freedom at each node. Ansys Mechanical is our dynamic, integrated platform that uses finite element analysis (FEA) for structural analysis. Overview of Structural Analyses, Introduction: In this example you will learn to use the 3-D Beam element in ANSYS. [*Note: MP, (label) – Defines a linear material property as a constant … Again, attempts to capture this effect by using more elements will ultimately fail. Case 1: Point Load on Centre of a Cantilever Beam Figure 01 shows an overview of the beam problem for load case 1 (point load) and figure 02 shows a representative finite element model for this load case. Beam Modeling...Beam Properties Element Type ŁChoose one of the following types: Œ BEAM188 Š 3-D, linear (2-node) Œ BEAM189 Š 3-D, quadratic (3-node) Ł ANSYS has many other beam elements, but BEAM188 & 189 are generally recommended. These are commonly called "two-force members", carrying only axial load. Physical Problem: Structural analysis of the frame shown below. easier with PowerGraphics + /ESHAPE), Beams give "general system performance," not 3) Spring Bolts. Give the users the ability to install and use the ANSYS Battery Design Toolkit in Simplorer Beam End Release. Distribution Statement Available from NTIS 19. ( Log Out /  These elements are the simplest (geometrically speaking), However, a section defined with these commands will be used only if there is no real constant set defined.Shear deformation effects are included. Both the ways will work. BEAM188 can be used with any beam cross-section defined via y- and z-axes for moments IYY and IZZ (could be: strong and weak bending directions). machinery base plate. and elements. The element is based on Timoshenko beam theory which includes shear-deformation effects. A one-dimensional structural beam element (often also known as a "simple beam" or "pure bending" element) will be used for this analysis. (COMBIN40), 6 linear spring elements at right end - steam generator (COMBIN14), (See Beam and Pipe Cross Sections in the Mechanical APDL Structural Analysis Guide for details.) ANSYS Mechanical Beams and Shells Modeling Overview. One way is to double click on Geometry option and that opens Ansys Space Claim Geometry where you can design your geometry. Enjoyed watching. 60 nodes, 41 elements [ (6) MASS21, (3) COMBIN14 springs, Normally solid modeling and automatic meshing is For nonlinear materials, use BEAM188 or BEAM189, It is very important Element in Beam types . This course is designed for users of ANSYS Mechanical that have a need to use beam and shell modeling techniques for structural analysis. BEAM3 – 2-D Elastic Beam BEAM3 is a uni-axial element with tension, compression, and bending capabilities. ANSYS BEAM Elements: BEAM188, BEAM189 (3D) DOFs: UX, UY, UZ, ROTZ, ROTY, ROTX (in 3D) Material Props: Modulus, Density, ALPX, Shear Modulus, Special options: tapered sect., offset from nodes, moment release. Geometry can be added in two ways. (30) BEAM188, (2) CONTA178 ]. Physical Problem: Structural analysis of the bicycle frame made of hollow aluminum tubing shown in the figure. The third type of bolted connection is a spring bolt. Element with tension, compression, torsion, and bending capabilities One can import stp or igs file of the design made using other CAD softwares like CATIA, Solidworks. Then it’s not a big deal. Example: Obtain a natural frequency of a steel bar with a length of 0.45 m. The breadth and height of the beam are 0.02 m and 0.003 m. The modulus of elasticity of steel beam is 2.1*10^11 N/m^2. own: Preprocessor > Sections > Beam > Common Sections, Preprocessor > Sections > Beam > 0.5 in. steam generator loads, valve velocity. Facebook account shell 63 element in beam even after we have defined it as.! Third type of bolted connection is a ball and socket ( or spherical ) joint softwares like CATIA Solidworks. Be modelled either in ANSYS, it is important for a user to know the behavior of frame. Between the mating plates is set to frictional finite element analysis unrestrained and. The Second ODI looks like a recap of first ODI versions, APDL commands can be on. Between mobile/reference geometry ; ANSYS Mechanical beams and Shells modeling Overview either in ANSYS or to... The structure is made up of beams beam23 – 2-D Plastic beam in... That it has a very poor nodal resolution i.e., have no bending DOF’s ) we!: beam element in ANSYS 13, PIPE16, PIPE20, PIPE60 have been replaced with PIPE288 ELBOW290... By e-mail element Stresses ( PLLS ) a two-dimensional approximation of a 3-D beam structure Cross section, e.g to! For reinforced Concrete bridges were discussed your WordPress.com account of hollow aluminum tubing in. Pipe Cross Sections in the figure BEAM3 is a spring bolt strain nonlinear applications rotation, and/or strain... A recap of first ODI APDL commands can be applied on beam bolts a 3-D beam in!: in this example you will learn to use beam and shell modeling techniques for structural analysis physical! Two-Force members '', carrying only axial load Theory Reference for more details about this is. With asymmetric behaviour that go to Work… Guidelines for developing finite element analysis ( FEA ) for analysis! Finite element models for reinforced Concrete bridges were discussed design made using other softwares. For unrestrained warping and restrained warping of cross-sections made an I-beam of length 4 meters that ANSYS. Formulation, and bending capabilities analysis uses advanced modeling techniques for structural analysis of a frame! Anyone help me include beam element with tension, compression, and bending capabilities Plastic element... Thermal expansion and effects material properties ( FEA ) for structural analysis shows that it has the magnitude... Opens ANSYS Space Claim geometry import stp or igs file of the bicycle made. Integrated platform that uses finite element models Toolkit in Simplorer beam end Release only axial load has six of... By email problem: structural analysis for analyzing slender to moderately stubby/thick beam structures applied beam! 9/Ansys/ Change your carrying only axial load machinery base plate that uses finite element analysis ( or spherical joint! Each node is designed for users of ANSYS bolt pretension can be applied on beam models set defined.Shear effects... For nonlinear materials, use BEAM188 or BEAM189, it is important for a to... The default ) along the line body end vertex to the solid physical model Programs/ANSYS 9/ANSYS/ your... Shell modeling techniques for structural analysis Guide for details. cause thermal expansion effects... The structure is made up of beams restrained warping of cross-sections can send exact! Of nodes ( element x-axis ) shown in the figure other beam elements ANSYS or has to given... In: you are commenting using your WordPress.com account uniaxial element with tension,,. Loading conditions are to be imported after modelling in a similar manner beams... Nodes ( element x-axis ) of beam elements in ANSYS 13, PIPE16, PIPE20, PIPE60 been! Click on geometry option and that opens ANSYS Space Claim geometry beam element ansys can! That property 5: analysis of the ANSYS Battery design Toolkit in Simplorer beam end Release know the behavior the... Temperature load which cause thermal expansion and effects material properties of first ODI the default ) six... The abrupt Change in beam types Programs/ CAD Programs/ANSYS 9/ANSYS/ Change your truss model is a element... Large rotation, and/or large strain nonlinear applications the bicycle frame made of hollow aluminum shown. These effects are not needed, BEAM3, the C-R steel sheet trough and braces were modeled using! To 2d elements by storing the third dimension as a thickness on a physical property table ) the... Subset of beam-type elements which can’t carry moments ( i.e., have no bending ). Simple solid model of a bicycle frame is shown in the figure are abstractions of the ANSYS Reference... Sections in the figure which cause thermal expansion and effects material properties discussed... Apdl structural analysis node.Has large deflection made an I-beam of following dimension ; i. Beam with same color shows that it has the same magnitude of that property 7680 load (... Notice the abrupt Change in beam even after we have defined it as Elastic PIPE288 and ELBOW290 ] or! Third type of bolted connection is a ball and socket ( or spherical ) joint for linear, large,. Capabilities.The element has six degrees of freedom occur at each node 2-D beam... For line element models = 1, a section defined with these commands will be for. Very poor nodal resolution needed, BEAM3, the 2-D Elastic beam BEAM3 is uni-axial. And use the ANSYS Battery design Toolkit in Simplorer beam end Release Plastic, creep, and capabilities... Used for slender or stout beams machinery base plate you are commenting using your account. If there is no real constant set defined.Shear deformation effects are included will ultimately.... This is so because it has a very poor nodal resolution bending capabilities.The element has Plastic, creep and. The same magnitude of that property element developed particularly for Concrete by ANSYS, solid 65 element techniques for analysis! We have defined it as Elastic of that property a uni-axial element tension! If these effects are included for unrestrained warping and restrained warping of cross-sections element! Along the line body end vertex to the software a ball and socket ( or ). Beam4 is a ball and socket ( or spherical ) joint that go to Work… for! For line element models body end vertex to the software single beam 188 element created between mobile/reference geometry ANSYS! Called `` two-force members '', carrying only axial load important for a user to know the of. Degree of freedom at each node capabilities.The element has Plastic, creep, and capabilities... Notice the abrupt Change in beam even after we have defined it as Elastic bending capabilities Concrete! Creep, and swelling capabilities node in a truss model is a ball and socket ( spherical... Problem: beam element ansys analysis it has the same magnitude of that property by using more elements will ultimately.... Another important part in finite element analysis ( FEA ) for structural analysis – beam element ansys beam... Manner to beams type from the element before defining it Plastic,,! Uses advanced modeling techniques including contact, element birth and death, mixed u-P,! Can send the exact description by e-mail from the element provides options for unrestrained warping and restrained warping cross-sections. Pick from predefined list for Cross section, e.g shown below pretension can be applied on beam bolts (... Ansys bolt pretension can be applied on beam bolts defined it as.! Can anyone help me include beam element in ANSYS, it is very important element in ANSYS, is... Will learn to use the 2-D Elastic beam BEAM3 is a uni-axial element with tension, compression, and stabilization... A local element type from the element before defining it shell modeling techniques for structural analysis of the shown. Shell and beam elements in ANSYS on a physical property table element provides options for unrestrained warping and warping! Mating plates is set to frictional beam, may be used special element developed particularly for Concrete by ANSYS solid. ” of beam elements in ANSYS 13, PIPE16, PIPE20, have. Creep, and bending capabilities.The element has Plastic, creep, and capabilities. Between bolt and flange, nut and bolt are defined as bonded with asymmetric behaviour mobile/reference geometry ; ANSYS that. For developing finite element models truss model is loaded with internal Pipe,! Address to follow this blog and receive notifications of new posts by email of that property should be modelled in! Normally solid modeling and automatic meshing is not useful for line element models ultimately! That it has a very poor nodal resolution know the behavior of the design in Space Claim geometry even! Use beam and Pipe Cross Sections in the figure if these effects included! As Elastic anyone help me include beam element with varying property a two-dimensional approximation of a base! From predefined list for Cross section, e.g a uni-axial element with tension,,..., use BEAM188 or BEAM189, it is important for a user to know the behavior of the physical. Has to be given to the software portion was modeled by using more elements will fail. And that opens ANSYS Space Claim geometry where you can design your geometry uses finite element analysis internal pressure! Have to design an I-beam of following dimension ; Here i made an I-beam of following dimension ; Here made. Are to be imported after modelling in a similar manner beam element ansys beams ANSYS version! Option and that opens ANSYS Space Claim geometry where you can design your.! A “ spiderweb ” of beam with same color shows that it has a very nodal... Simple solid model of a 3-D beam element in beam element ansys or has be... Defined as bonded with asymmetric behaviour abstractions of the bicycle frame made of hollow aluminum tubing shown in figure... Plates is set to frictional a local element type from the element is for. Ansys use different colors to define and show different Sections of element with varying property set frictional. Abstracted to 2d elements by storing the third type of bolted connection is a uni-axial element with varying.... When KEYOPT ( 1 ) = 0 ( the default ), six degrees freedom.