Blog posts

Finite Eigenstrains in Nonlinear Elastic Wedges

Submitted by arash_yavari on Sat, 04/16/2016 - 18:26

Finite eigenstrains; residual stresses; nonlinear elasticity; elastic wedge

Eigenstrains are created as a result of anelastic effects such as defects, temperature changes, bulk growth, etc., and strongly affect the overall response of solids. In this paper, we study the residual stress and deformation fields of an incompressible, isotropic, infinite wedge due to a circumferentially-symmetric distribution of finite eigenstrains. In particular, we establish explicit exact solutions for the residual stresses and deformation of a neo-Hookean wedge containing a symmetric inclusion with finite radial and circumferential eigenstrains.

assembly

Submitted by mina rakhshi on Sat, 04/16/2016 - 10:12

Hi friends;

I want to assemble three volumes with different properties in apdl ansys, but ansys ignore CMGRP command when I use it, what's problem my code? How can I assemble three volumes? please help me.

my code is:

/PREP7

~PARAIN,'Geom','x_t','.\DESKTOP\',SOLIDS,0,0

ET,1,solid186

MPTEMP,,,,,,,,

MPTEMP,1,0

MPDATA,EX,1,,3.013

MPDAtA,PRXY,1,,0.3

MPTEMP,,,,,,,,

MPTEMP,1,0

MPDAtA,DENS,1,,1.092

MPTEMP,,,,,,,,

MPTEMP,1,0

MPDATA,EX,2,,1.65

MPDAtA,PRXY,2,,0.3

MPTEMP,,,,,,,,

2016 EMI International Conference - MS11: Instabilities and Bifurcations in Solids, Structures and Soft Materials

Submitted by Fan Xu on Sat, 04/16/2016 - 03:42

computational mechanics

Dear Colleagues,

Remarks on UMAT for plane stress problem

Submitted by Pu Zhang on Fri, 04/15/2016 - 18:26

software

There are a lot of sample UMAT subroutines for plane strain or 3D problems. However, it is difficult to find an example for the plane stress problem online. Even the UMAT manual does not provide enough information. I have tried the UMAT subroutine for the plane stress problem for a while. The following remarks may be useful for collegues who have interest.

1. The stress components σ₁₁, σ₂₂, σ₁₂ should be returned to UMAT. The other three stress components equal to zero, known as the basic assumption of the plane stress problem.

Postdoctoral Position in Mechanics

Submitted by PerlikowskiP on Fri, 04/15/2016 - 11:35

job

Tuned mass dampers

Employment as an assistant researcher (Post-doc) at the project OPUS from National Centre of Science.

Details: http://www.perlikowski.kdm.p.lodz.pl/project.html

uel mass diffusion/heat transfer

Submitted by vanos1989 on Fri, 04/15/2016 - 11:00

hi all,

I am a PhD student .for my research I must ecire a uel to visualize the distribution of moisture in the composite polyester / fiberglass exposed to two different temperatures on both sides with abaqus.

any help is appriciessed

"Evaluation of stresses in Isogeometric analysis"

Submitted by Vishal Agrawal on Fri, 04/15/2016 - 09:23

research

Stress computation in IGA

Hi,

I am trying to find the method of stress evaluation used in Isogeometric analysis. I havn't come to know any numerical process for stress computation along with its implementation in IGA. Can someone please help me in this regard.

Thanks -Vishal

Project Officer or Research Associate at Nanyang Technological University

Submitted by Liya Zhao on Fri, 04/15/2016 - 06:06

job

Job Description & Specifications:

The School of Civil and Environmental Engineering, Nanyang Technological University is seeking for a potential candidate for research positions as Project Officer or Research Associate.

The PO/RA will work on a project to conduct the research on real-time geotechnical monitoring using fiber optic sensors.

The roles of this position includes:

Evolution of elastic modulus in roll forming

Submitted by bitamendi on Fri, 04/15/2016 - 05:43

research

Abstract: Roll forming is a continuous process in which a flat strip is incrementally bent to a desired profile. This process is increasingly used in automotive industry to form High Strength Steel (HSS) and Advanced High Strength Steel (AHSS) for structural components. Because of the large variety of applications of roll forming in the industry, Finite Element Analysis (FEA) is increasingly employed for roll forming process design. Formability and springback are two major concerns in the roll forming AHSS materials.