I'm looking for the thermo-mechanical properties of aluminum, such as Young modulus, thermal expansion coefficient, thermal conductivity coefficient and poisson ratio as a function of temperature :
E=E0(1+E1*T+E2*T^2+E3*T^3) ; T: temperature in K
Postdoctoral and Graduate Assistant Positions are
immediately available to work on phase-field simulations of phase
transformations and microstructure evolution in metallic alloys or
oxides. Strong background in mechanics and thermodynamics of of solid
microstructures is a plus. If interested, please email a resume to
Professor Long-Qing Chen, Penn State University at lqc3 [at] psu.edu
Hello, veryone. I am usint the VUMAT to define a new material behavior. There are questions about the calculation of shear stress.
The sheet metal forming was took as a plane stress problem in many relevant articles. So only three stress components:sigma_{11},sigma_{22},sigma_{12}
(sigma_{33}=0)are included in stress apdate algorithm such as the return mapping algorithm(J.C SIMO, R.L. Taylor. A return mapping algorithm for plane stress
All,
The Department of Mechanical Engineering at the Catholic University of America (Washington DC) offers yearly a Fellowship to attract new Ph.D. students to the program. This Fellowship is currently available.
Hi friends,
Can you explain Baushinger effect?
how it is related with KINEMATIC HARDENING?
Thank you
Dr. William F. Trench's book, "Introduction to Real Analysis," is now availablefor download free of charge.
Go to http://ramanujan.math.trinity.edu/wtrench/misc/index.shtml
ADINA84 is an open source code which can solve contact problem.
My model is shown in the picture below：
Pipeline and seabed are both 2D 2-node beam element and seabed is rigid surface.
I define one contact pair,two contact surface and each surface has 99 nodes .Two surface's nodes have same coordinate.
The program'erro is"CONDITIONS OF CONTACT INADMISSIBLE DUE TO DETECTION OF GROSS OVERLAP".
Who can tell me the reason？
Hi all, I am a new ABAQUS VUMAT user. I am defining the material behavior in stamping of sheet metal through VUMAT. But there are several questions about VUMAT.
（1）accoring to the ABAQUS user manual，for plane stress problem，stressnew(nblock,ndir+nshr), where ndir=3,nshr=1, but in fact,there are 5 stress commponents: sigma_{11},sigma_{22},sigma_{12},sigma_{23},sigma_{31}.
how to match stressnew(*,i)(i=1,2,3,4) with the stress commponents: sigma_{11},sigma_{22},sigma_{12},sigma_{23},sigma_{31}?
Hi all, I am a new ABAQUS VUMAT user. Recently I try to define the matreial behavior in stamping of sheet metal through the VUMAT. there are several questions about VUMAT.
（1）accoring to the ABAQUS user manual，for plane stress problem，stressnew(nblock,ndir+nshr), where ndir=3,nshr=1, but in fact,there are 5 stress commponents: sigma_{11},sigma_{22},sigma_{12},sigma_{23},sigma_{31}. how to match stressnew(*,i)(i=1,2,3,4) with the stress commponents: sigma_{11},sigma_{22},sigma_{12},sigma_{23},sigma_{31}?
