hello,

I need some examples in *.pdf to learn fracture mechanics in abaqus. the best for me will be some example for 2d and 3d stationary crack and 2d and 3d for crack propagation

The convergence of iterative methods like conjugate gradient depends highly on the condition number of the matrix. I use a preconditioned conjugate gradient (with a gauss-seidel preconditionner or ILU(0)) and I would like to know if there is a way to estimate the condition  number of the matrix easily. The matrix system arises from the basic structural equations of mechanic in large deformation. Is there any estimate that can be easily computed (I have in mind a method which uses element aspect ratio for example...). My goal is to have more control on the solving process and to have the ability to predict when the solver will fail.

Thank you !

To who concern, 

I am currently a Mechanical & Maintenance Engineering PhD candidate in the University of Manchester. My research is focused on measurement technique in condition monitoring for machinery maintenance. My project is “Using an Optical Sensor to Measure the Instantaneous Rotating Speed of Machinery as Non-Contact Measurement”.

Greetings to all users.  I am using the parametric study option of ABAQUS to run a series of spherical indentation problems.  Each model in the series uses a different set of rate-dependent plasticity material parameters and I am trying to compare the results of my ABAQUS runs to some experimental data.  The experiments consist of a loading portion, a dwell at peak load and an unloading portion.  The loading segment was performed with an exponentially increasing load on the sample, but when a prescribed displacement is reached, the loading portion stops and the next step, the dwell, begins. 

Hello,Greetings form AVTEC Ltd!! We
at Avtec Ltd. are one of the leading suppliers of power units (Engine +
Transmission) in India. We are a part of C.K. Birla group of industries
& are in the automobile market since 1958. We make more than 5000
Power units per month for INDIA & overseas market for different
applications, our customer range includes General Motors India, Ford
India Ltd, FG Wilson & many more. We are also having in house
Research & Development facilities to provide a range of AVTEC
products (Power Units) to domestic clients like Hindustan Motors Ltd.,
Mitsubishi - HM JV, Mahindra & Mahindra, Tata Motors, Premier Auto
Ltd, & export to F.G. Wilson (USA/UK). We execute Value Engineering

I am often asked by authors about Elsevier's copyright policy and author's rights. These are clearly written in the Guide for Authors which can be found on each and every journal homepage, e.g. www.elsevier.com/locate/ijsolstr. Scott Virkler, VP of Web Search Strategy at Elsevier's New York office, also explains how with millions of web searches taking place every day it would be impossible for individual authors to monitor the correct use of their work, and how by transferring copyright to Elsevier enables it to assume the burden of monitoring the use of material, while protecting the publishing process (Protecting your ideas in the Internet age)

At a meeting of the Editorial Board of IJSS, on Sunday, 3 June 2007, in Austin, Texas, the representatives from Elsevier, the publisher of IJSS, told the members of the Board that all articles published in IJSS will be freely accessible 24 months after publication.  The first of these articles will become available in October 2007.  That is, all IJSS articles published after October 2005 will become freely accessible after a delay of 24 months.

This is a stress modeling position in TI's research organization Silicon Technology Development (SiTD). The opening is immediate and the position is filling very fast. Minimum requirement: MS degree in the following fields: Mechanical Engineering, Physics, Materials Science or Engineering Mechanics. PhD degree is preferred.  Please email your resume to Jie-Hua (Jeff) Zhao at jhzhao@ti.com or Darvin Edwards at rvin@ti.com. Call Jeff at 972-995-8851 for detail. Job description is listed below: