3-D and 2-D Crack Growth Simulation
Hi,
Is it possible to use 2-D finite elements capable of accurately predicting all stresses (three dimensional stress state) for 3-D crack growth simulation?
Subramanian
research
Joining A Damage Mechanics Research Group
Hi every one
I' m a PhD student from Iran and I like joining a Damage Mechanics Research Group for my thesis. Does any body have a good opprtunity for me?
Regards
Modeling Viscoelastic Dielectrics
Dielectric elastomer, as an important category of electroactive polymers, is known to have viscoelastic properties that strongly affect its dynamic performance and limit its application. Very few models accounting for the effects of both electrostatics and viscoelasticity exist in the literature, and even fewer are capable of making reliable predictions under general loads and constraints. Based on the principals of nonequilibrium thermodynamics, this paper develops a field theory that fully couples the large inelastic deformations and electric fields in deformable dielectrics.
Material modelling of steel in cyclic behaviour - Abaqus
Hi friends,
I am studying about cyclic behaviour of steel-concrete composite column. When i am giving material properties of steel, i have doubt about Isotrophic Hardening and Kinematic Hardening, which one i have to use to get cyclic behaviour of column.
Thank You
R.Velmurugan
How to perform surface boundary integration in elasticity fem?
This is a basic question regard to elsticity fem.
How to compute traction boundary integration numerically in elasticity fem under general situation? That is:
\int_{\Gamma} [N][t] d\Gamma, here [N] is shape function and [t] is surface traction
My E-mail: shengxu.xia [at] yahoo.com
Thanks a lot
Convergence problem in 2-d axisymmetric elasto-plastic formulation
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Dear all,
I am trying to solve the thermal ratcheting of a hollow cylinder using elasto-plastic formulation.
I am applying the moving thermal gradient in axial direction. Our FEM code(Newton Raphson) is converging for first increment but after that it is diverging. I have used 8 noded serendipity element with 9 gauss point.
Anyone can please help me that why it is happening?
Thanks
Raj
Sequence loads
Hi everybody
I want to ask you regarding the general pattern of diagram da/dn Vs. DeltaK(stress intensity factor) for Variable amplitude loading? Could we share our knowleadge in this case?
Regards,
thermo-mechanical coupling analysis of brake disc
Pls i am new to Ansys just learning how to use it for my research project on composite brake disc. pls can someone help with the following;
1. procedure for thermo-mechanical analysis
2. setting boundary conditions
3. meshing application
i will be very glad if i can get this informations it will really go along way in assisting me for my reseach work. debisi1 [at] yahoo.com (debisi1[at]yahoo[dot]com)
thank youvery much
Generating quadratic tetrahedral (tet10) meshes from .stl surface models
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Hi iMechanica-experts,
I'm working with soft tissue models of abdominal organs (e.g. liver) for surgery simulation. These models are alway constructed from segmented surface files (triangles, e.g. .stl). I'm devloping an algorithm that uses isometric quadratic tetrahedral (tet10) elements (mainly in order to reduce volume locking). Now I'd like to generate a tet10 mesh from the surface mesh.