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Central crack loaded with stress

Submitted by Eric.John on Wed, 02/27/2008 - 18:02

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Fracture Mechanics Forum

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Central crack loaded with stress.

1. Central crack loaded with stress.

(A) The stress intensity factor for a central line crack in an infinite plate is found to be

K=p(πa)^.5

where p is the pressure exerted along the crack line. (A) Does this formula imply a stable or an unstable crack propagation when p reaches the critical stress level? (B) Present an experiment to support your answer in (A). Specify your experiment in details.

New (Free!) Solid Mechanics Textbook

Submitted by Allan F Bower on Tue, 02/26/2008 - 01:40

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textbook

I have posted an advanced solid mechanics textbook on http://solidmechanics.org/

It works on Internet Explorer, but may not work on all browsers. Topics include: mathematical descriptions of deformation and forces in solids; constitutive laws; analytical techniques and solutions to linear elastic and elastic-plastic boundary value problems; the use and implementation of FEA; fracture mechanics; and the theory of deformable rods, plates and shells.

on-line visualized experiments

Submitted by Tian Zhi Luo on Mon, 02/25/2008 - 22:08

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biomechanics

Please visit www.jove.com

You'll find tons of video about biological experiments you might be interested in. It is very useful for most of mechanicians who lack this kind of knowledge and experience. Enjoy yourself!

Modelling and digital simulation of the structures fissured under residual stresses

Submitted by ellabou leila on Sun, 02/24/2008 - 12:22

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MMF-based Failure and Life of Composites. An Internet Course offered through WebEx

Submitted by Managers on Sat, 02/23/2008 - 20:52

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composite materials

design

Using Abaqus for orthogonal metal cutting problems

Submitted by navinmadhavan on Thu, 02/21/2008 - 12:57

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How do we use Abaqus to simulate the orthogonal metal cutting process and check for values of various parameters during the cutting operations ? I would be extremely thankful to anybody who could assist me on this . Tahnking You in Advance ,

Navin

Introduction to Cohesive Zone and Modelling DCB Test using Cohesive Elements

Submitted by craime on Wed, 02/20/2008 - 11:45

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I am currently working on a project to model DCB test in ABAQUS. My current problem lies in understanding cohesive zone modelling. I was wondering if anyone can forward me a couple of materials regarding the introduction of cohesive zones?

This would help me understand the material greatly and help me in modelling the DCB test.

Another question in ABAQUS: how do you implement the material properties for cohesive elements? in particular, what values should i be using for them? e.g. E, G1, G2?

An Introduction Course on Mechanics

Submitted by Ji Wang on Wed, 02/20/2008 - 02:20

We are currently offerring an introductory course on mechanics for junior students for all fields and subjects. It is a so called general knowledge course for students to know more on certain subjects and fields before a decision on choice of a major is made. Since the Mechanics Department in our University has not been popular for so long, we have decided to evangalize our field with more glorious history of Mechanics: Newton, Bernoulli, Euler, Clausius, Faraday, and Einstein.