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Producing Stress Analysis from Strain data

Submitted by G Rezk on Sun, 02/15/2009 - 23:36

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stress

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finite element methods

FEA

I am doing research on the stresses that are produced when a retainer (a thermoplastic sheet) is placed on the teeth. We've designed the project so that we take an initial scan of the sheet and a final "shifted" scan of the sheet. We'd like to compare, find the strain, and calculate the stress neccessary to produce this strain.

I was hoping to use FEA for this...is it possible? I have access to Abaqus and Ansys, and where can i find the commands that allow me to do this.

Symposium on the Mechanics of Biomembranes, 2009 ASCE-ASME-SES Conference on Mechanics and Materials, June 24-27, Blacksburg

Submitted by George Lykotrafitis on Sat, 02/14/2009 - 00:32

conference

experimental nanomechanics

Biomembranes

coarse-grain modeling

vesicle fusion

Symposium on the

Mechanics of Biomembranes

at the

2009 Joint ASCE-ASME-SES Conference on Mechanics and Materials, June 24-27, Blacksburg, VA

Modelling Ice deformation and fracture in Abaqus

Submitted by Daniel Prawica on Fri, 02/13/2009 - 01:52

Hello Abaqus Users,

I am new to Abaqus: I am trying to model formation and propagation of fractures in glacial ice (note: ice deformation mainly by plastic flow). I was wondering if anyone has modeled ice as a material exhibiting a nonlinear behavior, or possibly have a user subroutine for ice that I could use. Thanks in advance for any help.

Daniel

solver for a very hetereogeneous system of equations

Submitted by phunguyen on Thu, 02/12/2009 - 16:34

research

Hello everybody,

I am solving a FE problem on a hetereogeneous medium consisting of rigid phase (Young modulus of about 100 000 N/mm2), a softer phase (Young modulus of 20 000 N/mm2) and pore (Young modulus of 1 N/mm2). The reason that I have to mesh the pore is that there are some elements of rigid phase hanging out in the pores. So, if I do not mesh the pore, then my FE matrix is singular.

Abaqus SE problem

Submitted by Richard Kutcher on Thu, 02/12/2009 - 15:39

software

Just attended a FEMA introduction course put on by my provincial engineering assoc. We all received a copy of Abaqus Student Edition.

When I install the program on my Toshiba Windows Vista laptop the installation completes but when I start the program and try to draw a part instead of getting a blue grid I get a second white drawing sheet overlaying the first.I have tried numerous installs and have all the latest Vista upgrades. My copy of the DVD is good because the program works on my desktop computer.

Molecular dynamics study of effects of radius and defect on oscillatory behaviors of C60-nanotube oscillators

Submitted by haiyang song on Thu, 02/12/2009 - 04:26

research

Post-doc for Mesoscopic Modeling of Autonomous Repair of Polymer Networks

Submitted by Erik Van der Giessen on Wed, 02/11/2009 - 20:19

job

Self-Healing Polymers

Are you interested in contributing to the development of a totally new concept of self-healing in polymer networks? The Micromechanics group at the University of Groningen (the Netherlands) is offering a post-doc position for the development of coarse-grained Molecular Dynamics and/or novel mesoscopic models of polymer networks with dormant polymerization catalysts. The modeling work will be done concurrently with experimental research in the chemistry department of the university of Eindhoven.