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coupling between plasticity and damage

Submitted by nilesh on
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education

Hello all,

 I am Nilesh and doing
study of Continuum damage mechanics, in that context, I have some doubt s

     Can anyone tell
me?

1. As in plasticity we have yield surface  and in damage we have damage surface  but in this case,  does damage surface working same ( for
isotropic and kinematics damage???? ) Like in isotropic and kinematic
hardening??? I mean expansion and movement for isotropic and kinematic damage
case???

applications of maths in the study of fractured surfaces

Submitted by mageru on
Forums
Fracture Mechanics Forum

Hello everybody,

Please recommand me bibliography or the links on the WEB concerning the applications of different maths in the study of fractured surfaces. Thank you very much. In my country, Romania this domain is not know very well. Best regards from Romania!

Why do people become registered users of iMechanica?

Submitted by Zhigang Suo on
opinion

The number of registered users of iMechanica is approaching 3000.  This sustained growth has been surprising to many, considering that iMechanica was launched less than a year ago, in September 2006, that iMechanica uses an off-the-shelf open-source software, Drupal, and that everyone can read everything without registration.  Why have so many people registered?  There might be many reasons, such as

Sih's Strain Energy Density Approach in Fracture - why is it not very popular?

Submitted by yoursdhruly on
education
fracture
strain energy density
Sih

Most fracture classes and texts focus on the following different approaches: Griffith's energy approach, Irwin's stress intensity factor approach, the Barenblatt-Dugdale strip yield model (and subsequently, cohesive zone modeling) and Rice's J-Integral approach. As a graduate student studying fracture mechanics, I have often wondered why there seems to be very little discussion in the community with regard to Sih's strain energy density approach. Are there any fundamental limitations to the approach or are there "other" reasons behind this? Your thoughts are appreciated.

Fracture Criterion

Submitted by Arash Karpour on
Forums
Fracture Mechanics Forum
Choose a channel featured in the header of iMechanica
research

 This is either a wage question I am asking or a stupid one...

How many fracture criterion do we have and what are they? some of these criterion that I am reading are related or a form of others...For example CTOD (crack tip opening displacement) criterion is related to energy release rate in

" A CTOD-Based Mixed-Mode Fracture Criterion" by Fashang Ma et al.

Any guid or direct help would be much appreciated.

 

   Thanks for your time

 

 Arash 

New Book - Mechanics of Microelectronics

Submitted by Xuejun Fan on
education

You may want to take a look of this newly published book entitled Mechanics of Microelectronics, which is

Series: Solid Mechanics and Its Applications , Vol. 141

Springer, May 2006

authored by G.Q. Zhang, W.D. van Driel, and X.J. Fan http://www.springer.com/east/home/engineering?SGWID=5-175-22-165281764-detailsPage=ppmmedia|toc

Fifth European Conference on Constitutive Models for Rubber

Submitted by ErwanVerron on
conference

If you are interested by the mechanics of elastomers, there is a dedicated conference for you : ECCMR 5, which will be held in Paris, France, 4-7 September 2007.

It is the fifth edition of the European Conference on Constitutive Models for Rubber Conference. The call for paper is now closed, but registration is still open.

See the conference web page: http://eccmr.egim-mrs.fr/

NSF Mini Travel Grants - 10th Pan American Congress Appl. Mech

Submitted by Nanshu Lu on
conference
NSF
awards
graduate students

The National Science Foundation (NSF) has made a recent award to help increase graduate student participation at the Tenth Pan American Congress of Applied Mechanics (PACAM X).  These awards will be made in the form of mini-travel grants ($500 - $1,000) for exceptionally qualified students to participate in PACAM X January 7-11, 2008, in beautiful Cancun, Mexico.

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