Blog posts

Metal Foam fracture

Submitted by mhmd abdelshafy on Mon, 01/14/2008 - 15:33

Dear All

I'm working on studing the use of metal foam in sandwich structre containing Al or steel plate to overcome an impact shells or plates at differnet impact velocity but the prblem that I face how to define the failure critrion of Meat foam except difine the crushable foam properties, and I've read a paper on using cohesive element but i don'nt know how to use it.

Hopefully some one can help me solving this prblem, by the way I'm using ABAQUS v6.6

Regards

time integration for plasticity

Submitted by tim on Mon, 01/14/2008 - 15:32

Hi this is Tim, final year undergraduate student .can anyone tell me why we need time integration for plasticity (hardening).As i am undergraduate student my knowledge is very limited so could you please let me know from basics. Also what does explicit and implict integration mean in the application of plasticity?

THanks in advance,

Tim

Postdoctoral Research Position at IDMEC-FEUP, Portugal

Submitted by RenatoNatalJorge on Mon, 01/14/2008 - 15:11

research

The Institute of Mechanical Engineering of the Faculty of Engineering of the University of Porto, Portugal, intents to contract 2 researchers (postdoctoral) to work in the group of Structural Integrity. The main topics of this group are:

- Development of advanced composites

- Product development

- Fracture and fatigue behaviour of components

- Development of structural wood components

- New numerical techniques to analyze solids and structures

- Biomechanical behaviour of soft tissues

Graduate student position at Royal Institute of Technology (KTH)

Submitted by Fred Nilsson on Mon, 01/14/2008 - 10:36

job

See http://www.hallf.kth.se/NYAJOBB/nyajobb_en.html

The position is at the Department of Solid Mechanics, KTH . The theme of the graduate student project is "Crack growth in rubber and rubber like materials".

ES 240 Final Project

Submitted by Eric D. Kiser on Mon, 01/14/2008 - 03:44

This is my final project.

The Study by Mr. Wu etc Concerning Saint-Venant’s Principle is Insignificant

Submitted by Jian-zhong Zhao on Mon, 01/14/2008 - 02:47

research

The paper titled "The Study by Mr. Wu etc Concerning Saint-Venant’s Principle is Insignificant" reviewed the series of four works of “proof of Saint-Venant’s Principle” published by Wu etc .The four articles proved neither the discrete Saint-Venant type decay of section-forces of the finite elements in the chain model of discretization of the cylinder nor the discrete Saint-Venant-type decay of section-displacements, posed in their papers. Furthermore, the discrete Saint-Venant type decay of section-forces is not provable.