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Dear Colleagues,

Here we would like to offer you the summary from a published work concernign the optimization of industrial object. The work describes the application of parallel IOSO algorithms and parallel genetic algorithm PGA for the solution of optimization of 3D serpentine cooling passage inside a turbine blade.

We cordially invite you to submit an abstract to Symposium: Mechanical Behavior of Low Dimensional Materials at Materials Science & Technology 2010 (MS&T'10) to be held on October 17-21, 2010 in Houston, Texas. For submission, please go to http://174.120.122.245/program/technical-program. The deadline for abstract submission is March 15, 2010.

If a car filled with water is accelerated at uniform rate, and a heavy object is hanged by a string from the top of the car and a balloon with a string from the bottom of the car. What would be the direction of deflection of balloon & the heavy object. I would appreciate if someone could explain to me the phenomena of deflection, which would be helpful for me to better understand the topic please.

A previous work suggested a critical condition to form surface creases in elastomers and gels. For elastomers, the critical condition seems to have closed a gap between experimental observations (e.g., by bending a rubber block) and the classical instability analysis by Biot. For gels, however, experiments have observed a wide range of critical swelling ratios, from around 2 to 3.7. Here we present a linear perturbation analysis for swollen hydrogels confined on a rigid substrate, which predicts critical swelling ratios in a similar range.

PRELIMINARY PROGRAM - Registration is open
Thin Film and Small-Scale Mechanical Behavior
July 25 - 30, 2010 at Colby College, Waterville, Maine

Online Application:
http://www.grc.org/application.aspx?id=9398

Preliminary Program:

These notes were initially written when I taught fracture mechanics in spring 2010.  The title of the notes was then "stress intensity factor".  In revising the notes for the class in 2014, I have changed the title of the notes to "crack-tip field".

You can access all notes for the course on fracture mechanics. 

A research position is now opening in the field of Computational Mechanics of granular materials, in Karlsruhe Institute of Technology (KIT), Germany. This position should start between May and September 2010, and is a full-time fixed-term PostDoc position for 2 years (TVL E13).

Dear All,

 I think that many students are looking for some tutorials about writing a UMAT in ABAQUS.

You can find a comprehensive tutorial for elastic problems.

This file contains: 

• Motivation

• Steps Required in Writing a UMAT or VUMAT

• UMAT Interface

• Examples

Example 1: UMAT for Isotropic Isothermal Elasticity

Example 2: UMAT for Non-Isothermal Elasticity

A Postdoctoral Research Associate position is available in the School of Civil Engineering at the University of Sydney, Australia. The  project aims to understand the effects of solid solute, grain size and intermetallic structure on the strength of Mg alloys through modelling and simulation. The project is funded by the Australian Research Council (ARC) Centre of Excellence (CoE) for Design in Light Metals.

Can someone help me to understand this please:

The stretching tensor (D) is the symmetric part of the velocity gradient (L), and if I derive D from L with using the polar decomposition of the deformation gradient (F=RU) I get the relation:

D=0.5 R (Udot Uinv + Uinv Udot) R' ----(Eq.1) where Udot is the time derivative of U, Uinv is the inverse of U, and the prime indicates the tranpose of the matrix.

We present an interesting application of ADINA FSI in  
cerebrospinal fluid dynamics, please see     

http://www.adina.com/newsgH64.shtml

This studentship has now been filled, but there may be further similar studentships to follow.

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TECHNOLOGY LEADER (CENTRE DIRECTOR) 

Competence Centre for Composite Materials 

A Competence Centre for composite materials research is to be established at UL, with support from Enterprise Ireland and IDA Ireland. The Centre will conduct innovative, high quality research in the use of composite materials with direct relevance to industry.  Applications are invited for the position of Technology Leader (Centre Director) 

hi all,

can anyone explain about the following basic questions

1. me the difference between the proportional limit and elastic limit.

   Please dont give the definitions of both, i need some detailed explaination.

 2. How many natural frequency a object can have?

Regards

sagar

The research on stretchable and twistable electronics by Yonggang Huang at Northwestern University and John A. Rogers at the University of Illinois at Urbana- Champaign has been featured on the cover of the NSF Budget Request to the United States Congress for the fiscal year 2011.

Details available at http://www.nsf.gov/about/budget/fy2011/cover_caption.jsp