dear friends, i want to know how to get the tsai -wu failure criteria for orthotropic material in ANSYS.after modelling and giving the material properties ,should i give anything special to activate this option ,or will i get automatically this criteria for all the elements from the output file itself.
please help me as my research work couldnt able to proceed.
Hi
I am having difficulty with modelling isotropic hardening for sheet metal material in a simple spreadsheet or MathCAD program.
I can model the initial yield condition using an appropriate (plane stress) yield criterion. I have also fitted a hardening law to the experimental data for uniaxial tension. I am having difficulty with the effective stress-strain relations and how this relates back to yield surface expansion.
Has anyone modelled experimental data in this way?
I'm a graduate student studying the coupled elastic vibration prolbem of structures and soils. However, I'm not very interested in that, as I think the practical coupled structure and soil vibration problem is totally inelastic, and I don't think it is of great importance to study the elastic case.
Is there anybody studying the vibration problem here and can you tell me what's the importance of studying the elastic vibration problem? Are you interested in inelastic vibration prolbem?
hai,
my project is analysis of functionally graded plates for thermal loads using matlab in this regard i need certain basepaper regarding "bending,buckling and vibrational analysis of composite laminates(cross-ply & angle-ply)subjected to only thermal loads(i,e temperature increment) either constant or linear change using different theories as classical laminate plate theory(CLPT),first order shear deformation theory(FSDT) and zeroth-order shear deformation theory(ZSDT)"
Hello everyone,
I am implementing a uel user subroutine in ABAQUS. This uel is for modeling contact in X-FEM framework. Thus, it's a nonlinear problem and I need to store some solution dependent variables during each iteration. I know I can store SDVs in SVARS. But this vector will update at the end of each step, and not during iterations. Anybody knows about this problem?
I really appreciate if anybody can help me with this.
Thanks
Ehsan
Hi, I work on material damage model applied in ductile /brittle packaging material . Does any one have used the "overly method "(Imposing two element layers on top of each other, sharing same nodes but having different materials ) for modeling the an-isotropic hardening in Abaqus!? Do you know any other method that I can use for modeling an-isotropic hardening?
Hello all,
Hi all,
I am using FEAP 8.2 in my university, and have to write a user material routine, but there is no clear guideline/example about which files to modify for this purpose. Sorry to say, the programmer's manual is very short, and very little detail is there.
The old tutorials/examples based on FEAP (7.x) are no longer helpful because the FEAP 8.2, 8.3 source code has changed considerably (atlease the files in user folder), hence the novice can get mad after trying for many weeks to figure out the way for doing this.
Dear Colleagues,
A summer school on Nonsmooth Contact and Impact Mechanics is organized from September 10 to 14 at Aussois in the French Alpes. The main focus of the school will be on modeling and numerical/simulation aspects, and the following topics will be covered:
Algorithms for contact detection in time-stepping numerical methods
Convergence of time-stepping methods
Multiple impacts in multibody systems
Painlevé paradoxes
Waves in chains of balls
Simulating large fiber assemblies such as hair
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