The Piezoelectric Device Laboratory has immediate opennings for recent PhDs. We are engaged in researchs in piezoeelctric acoustic wave resonators with supports from government and indsutry. The Laboratory has been grwoing and we would like to have new members to accelerate the pace and expand collaborations with the fast growing piezoelectric acoustic wave device industry in China and other countries.
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
Hello All,
I am modeling helical spring wounded on the surface of cylindrical shell. High aspect ratio of helical wire creates problem in meshing. please help me in selecting the element and meshing.
Thanks
J. M
Hello to all the research scholars. Sir, I am a Phd student in computational fracture mechanics. Right now i am stuck with a problem where i am not able analyze SIF (K1, K2, K3) for a 3D crack in ansys. Ansys asks the path for K value and i am choosing 5 nodes along the 2 crack edges for a full crack model and I also went for both global coordinate system and local coordinate system for finding K. Finally when i went to nodal calc and SIF then it is giving only plane stress and plane strain conditions with full or half crack models. But I am not able to get SIF on the crack front as i am not choosing the path along the crack front. It is only giving SIF at the crack tip considering only the area. Am i not correct or does ansys has limitations on this. Please guide me in this.
Where I can find the subroutine of a user material Fortran code for Viscoelastic constitutive model?
Does anyone has the subroutine for LS-DYNA ?
Can anyone help me?
CSTAM ASC IEEE
2010 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications
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
I'm trying to understand elastic deformation using the Lie derivative. I've read a good summary on Wiki but want other sources to review. Can anyone offer any sources &/or explanations. I need something fairly basic. Thanks, John.
