Blog posts

Weak form

Submitted by surajitdas on Thu, 06/04/2009 - 05:25

During the study of FEM, I found the term "weak form" of differential equation, which is the integral form of a differential equation along with the boundary conditions for a boundary value problem. Now my question is that why the term "weak" has been used.

Seeking POSTDOC position on tribology (wear & Friction), Composite manufacturing, Functionally Gradient Composite, natural fibre

Submitted by umesh dwivedi on Thu, 06/04/2009 - 04:31

I am Umesh K Dwivedi, Lecturer, Amity University Raj., Jaipur. I did my PhD from polymer composite dept of AMPRI (CSIR) Bhopal in Sept. 2008. I have been working in composite
field (manufacturing, testing, analysis) for last 7 years. For my
resume please contact me at umesh_rrl [at] rediffmail.com (umesh_rrl[at]rediffmail[dot]com)

Fatigue to Fracture - paper in print

Submitted by Xiao-Yan Gong on Wed, 06/03/2009 - 16:12

industry

fracture

stent

medical implant; durability

This article will appear in Journal of ASTM International. I hope you find it useful.

Xiao-Yan Gong, President, medical implant mechanics LLC

www.medicalimplantmech.com

Advances in Computational Tire Mechanics - Minisymposium at ECCM IV, Paris 2010

Submitted by wvmars on Wed, 06/03/2009 - 13:55

conference

finite element analysis

tire

Advances in Computational Tire Mechanics Minisymposium at ECCM IV, Paris 201016-21 May 2010, http://www.eccm2010.org/

Call for Papers - The Tire Society

Submitted by wvmars on Wed, 06/03/2009 - 13:43

dynamic rolling contact

Bicycle tires

tire

vehicle dynamics

Final Call for Papers - 28th Annual Conference & Meeting on Tire Science & Technology

September 15 & 16, 2009, Akron City Centre Hotel, Akron, Ohio, USA

Full details can be found here.

www.tiresociety.org

Note that there is a $500 award for the best student-authored paper. Details can be found here.

High SIF in plane stress

Submitted by ramdas chennamsetti on Wed, 06/03/2009 - 10:08

Hi all!!!

I have a very basic question in Fracture Mechanics. The question is as following.

"Stree Intensity Factor (SIF) is more in plane stress problems (plasic zone size is big) than in plane strain problems (plasic zone size is small). How do we explain this, without refering or invoking energy conecpt?"

I request to give some thoughtful explanation.

With regards,

- Ramdas

Inquiring for the perspective of fluid-structure interaction

Submitted by Deng-Shouchun on Wed, 06/03/2009 - 01:09

research

ADINA: Automatic Dynamic Incremental Nonlinear Analysis

Submitted by ADINA Support on Tue, 06/02/2009 - 15:36

The ADINA System offers comprehensive capabilities for linear and nonlinear finite element analysis of solids & structures, CFD, fluid-structure interactions, multiphysics, and complete pre- and post-processing with interfaces to various CAD and CAE systems. It also offers user subroutines for material models, elements, loads...

cohesive element

Submitted by llguang on Tue, 06/02/2009 - 06:16

Hello everyone,I am researching the dynamic crack propagation problem using the cohesive element.At this moment, I am using the LS-DYNA (971)software's cohesive material model ,But it does't consider the penetration of bulk elements when the cohesive elements after deleted or not deleted. so the bulk will penetrate each other when under exterior dynamic load. From the literature, I know that many reserachers use the solver which is writern by themselves,and the cohesive element also writen by self. How can some kind expersist give me a tutoial ,Thanks.