Support program for attendees of 7th South China Sea Tsunami Workshop
The 7th South China Sea Tsunami Workshop (SCSTW-7) will be held on November 17-22, 2014 at National Museum of Natural Science, Taichung, Taiwan, China.
Blog posts
Micromechanics of collective buckling in CNT turfs
Complex structures consisting of intertwined, nominally vertical carbon nanotubes (CNTs) are called turfs. Under uniform compression experiments, CNT turfs exhibit irreversible collective buckling of a layer preceded by reorientation of CNT segments. Experimentally observed independence of the buckling stress and the buckling wavelength on the turf width suggests the existence of an intrinsic material length.
PhD Positions in computational mechanics at Oklahoma State University
PhD Positions in the area of computational mechanics are immediately available in the School of Mechanical and Aerospace Engineering at Oklahoma State University.
Requirements:
The candidates must have already earned or should soon earn their M.Sc. degree in Mechanical Engineering or in a closely related field.
Strong background in numerical simulations, finite element analysis, and/or computational solid mechanics
Excellent programming skills and experience with high performance computing
anisotropically in "GEOSTATIC" step (with distortion error)
Hello,
I simulated an isotropically triaxial test with 550000 (Pa) pressure on top and side of model in "geostatic" step. I defined vertical predefined field stress 550000 and lateral coefficient 1 too. I didnt have probloms in that model and the results were right.
Tricky!!! How to read CPRESS(contact pressure) in a subroutine
I want to set the contact pressure as a input in the routine but I don't know if there is a subroutine allows reading the contact pressure.
Thanks a lot for answering the question!!!
Question about the tangential behavior of ABAQUS
Hello everyone, I am using ABAQUS to study the tangential behavior (friction) at the interface between rock-machine. I know tangential behaivour simualtion is key for my model, I read the manual, but still have some puzzels, hoping you could help me, much appreciated in advance!
1. what's the difference among mechanical constraint formulation of penalty contact method (another is kinetic), friction formulation of penalty for tangential behavior, and constraint enforcement method of penalty for normal behavior. the explanation in manual seems ambiguous for me.
EUROMECH Colloquium 575 on Contact Mechanics and Coupled Problems in Surface Phenomena
Dear Colleague,
we would like to inform you that the EUROMECH Colloquium 575 on “Contact Mechanics and Coupled Problems in Surface Phenomena” will take place in the IMT Institute for Advanced Studies Lucca (Lucca, Italy) from March 30, 2015 to April 2, 2015.
Abaqus warning of Negative Eigen value
I am doing a FE formulation of surface elasticity. I wrote UEL for surface elements in addition to abaqus volume elements. But surfaces may have negative stiffness (constitutive relation as per Morton Gurtin's formulation). So as a result I am getting a warning of "Negative eigen values". Can any body tell me how abaqus is solving for this system matrix (with few negative eigen values) in Static General method?
Conditions in which EIGEN VECTOR zero
Conditions in which EIGEN VECTOR zero