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How can I model the progressive damage of composite materials

Submitted by Jameswei on
software
UMAT
progressive damage
USDFLS

Recently, I indulged myself into the progressive damage simulation of composite materials. I firstly used the USDFLS to create several fields to define certain kinds of damage, such as fiber crack, matrix crack, shear damage and delamination. One curious thing that I experienced into this is that ABAQUS/Standard informed me that "Stiffness defined by engineering constants is not physically reasonable. Check choice of poisson's ratios". I checked the data and changed some to comply with the rules of the transversely isotropic materials and the program proceeded. 

FEA engineer job position in Microsoft, Mountain View, CA

Submitted by Zhen Zhang on
job
job
FEA
Microsoft

Finite Element Analysis (FEA) and test data
analysis Engineer Job Description:

 

Microsoft
is a world leader in the design of entertainment devices. We are looking for a
creative, talented and experienced Finite Element Analysis (FEA) and test data
analysis Engineer.

 

Engineer III Schlumberger

Submitted by henrygrebe on
industry

Job Opening Schlumberger, a Fortune 500 Company, is a world-wide leading supplier of premium products and services to the oil and gas exploration and production industry, the petrochemical industry and other industrial markets.  We are seeking to hire a qualified candidate to fill the position of Engineer III in our Houston, TX location.   The successful candidate will be responsible for planning, organizing, and executing design development projects resulting in the definition of new products and improv

Faculty Positions in Solid Mechanics, Structural Dynamics & Aeroelasticity at the Georgia Institute of Technology

Submitted by Julian J. Rimoli on
job
Faculty Position
solid mechanics
aeroelasticity
structural dynamics

The School of Aerospace Engineering at Georgia Institute of Technology invites nominations and applications for two faculty positions in the areas of solid mechanics, structural dynamics, and aeroelasticity.  Appointments at all ranks will be considered. While candidates in all related areas of research will be considered, candidates with a strong experimental background are particularly sought.



Postdoctoral position available at the University of Western Ontario, Canada

Submitted by wenxingzhou on

A postdoctoral position is available starting in May 2011 in Prof. Wenxing Zhou’s research group in the Department of Civil and Environmental Engineering at the University of Western Ontario.  The duration for the position is 2 -3 years.  The successful candidate will carry out fracture mechanics testing and numerical simulations, and develop strain-based design methods for pressurized energy pipelines.  The project is jointly funded by the Engineering Research Council of Canada and a major pipeline company.  If interested, please send your CVs to wzhou [at] eng.uwo.ca (wzhou[at]eng[dot]uwo[dot]ca) to apply.

Nanomechanical Resonators and Their Applications in Biological/Chemical Detection: Nanomechanics Principles

Submitted by Kilho Eom on
research
nanomechanics
Carbon nanotube
Review
graphene
nanowire
multiscale modeling
atomistic modeling
surface effects
Coarse-Grained Modeling
cantilever
resonator
nonlinear oscillation
coupled resonance
detection
Q-factor

Nanomechanical Resonators and Their Applications in Biological/Chemical Detection: Nanomechanics Principles

Kilho Eom, Harold S. Park, Dae Sung Yoon, Taeyun Kwon 

 

Abstract

Modelling Iron powder compaction using ABAQUS

Submitted by yap zheng dao on
research

Dear users,

 I am currently undergoing a research on simulating iron powder compaction using ABAQUS. As i am new to this software, i need some guide on it. I had read through the manual but it doesnt help much. Below are my few enquiries:

1) The density required in material parameter is the initial density or the bulk density of the iron powder? If i use relative density, can i input in ABAQUS? 

vibration test fixture design

Submitted by sani.misra on
industry

Hello all,

 

I am a fresher; I just started working for a company leading in passenger cars.

I have been given a project in which I have to design a vibration test fixture for passenger car bumper.

Currently, we manufacture fixture in-house. And for every bumper, separate fixture is made.My task is to design a test fixture (for testing frequency range of 0- 70 Hz) which will be modular.

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