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Amit Pandey's picture




TMS Division: Functional Material Division (FMD
formerly known as EMPMD)

FMD sub-committee: Energy Conversion and Storage



Solution of Post-Buckling& Limit Load Problems, Without Inverting the Tangent Stiffness Matrix& Without Using Arc-Length Methods

Solution of Post-Buckling & Limit Load Problems, Without Inverting the Tangent Stiffness Matrix & Without Using Arc-Length Methods

by T.A. Elgohary, L. Dong, J.L. Junkins and S.N. Atluri

The paper can be downloaded freely at:

Homogenization - If materials in the model are isotropic, is it possible to get truly anisotropic resulting material?


I read that "In general, even if the materials on the micro-level are isotropic, the effective 

material can show anisotropic behavior. A general anisotropic linear elastic material 

may have twenty one independent material parameters.''


If I understand my results correctly then simple structures like ''ball in the unit cell'' result in orthotropic material.

I am a bit puzzled - what would be the simplest structure that would result in anisotropic material behaviour?

What is mandel stress?

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 Dear all,

 Sometimes, we can see the conception of Mandel Stress, I wonder

What is mandel stress? How to use it?


The 2nd Sandia Fracture Challenge is here!

update, 7/24/2014: The information packet ("SFC2-challenge-v5.ppt") is no longer attached to this post (iMechanica has a file size limit of 1 MB, so we can not attach the 6 MB file). IF YOU WOULD LIKE THE INFO PACKET, PLEASE E-MAIL ME, and copy Dr. Sharlotte Kramer, If you have an older version of the information packet, please also e-mail for the newest (v5) info packet.

We intend to send the shear calibration data to all those whose e-mail address I have by August 1st (sorry for the delay!).

Theoretical and Applied Mechanics Letters, Volume 4, Issue 3, 2014 is online now!

Dear everyone,

The third issue in 2014 (Volume 4, Issue 3) of Theoretical and Applied Mehcanic Letters (TAML) is now online.

Welcome to this young journal for rapid publication of your exciting results. Smile


Call for Abstract: Symposium XX: Bridging Scales in Heterogeneous Materials at 2014 MRS Fall Meeting & Exhibit (Nov 30 - Dec 5)

Dear colleagues,

You are cordially invited to submit an abstract to Symposium XX: Bridging Scales in Heterogeneous Materials at the 2014 MRS Fall Meeting & Exhibit, to be held
November 30 - December 5, 2014, in Boston, Massachusetts.

PhD Position in Computational Mechanics/Biomechanics at Villanova University

There is an immediate opening for a PhD student
position with a target start date of August 2014 in the Computational
Biomechanics and Solid Mechanics Laboratory at Villanova University.

Sulin Zhang's picture

Research Assistant position available

My group in the Deaprtment of Engineering Science & Mechanics /Biomedical Engineering has an immediate RA opening, expected to start from the Fall of 2014. 

Vladislav Yastrebov's picture

PhD position in numerical modelling of landslides and generated seismic waves at IPGP Paris

We are looking for a PhD
student to work on Numerical modelling of landslides and generated seismic waves.
This PhD is funded by the European project ERC SLIDEQUAKES.


Anne Mangeney
Professor of Geosciences at University Paris Diderot, PRES SPC
Head of the Seismology Group, Institut de Physique du Globe de Paris

2014 Melosh Medalist

Phani Motamarri, from the University of Michigan, is the 2014 Melosh Medalist for his paper "A Spectral Finite-Element Based Method For Large-Scale Quantum Mechanical Calculations Using Kohn-Sham Density Functional Theory".  Please join me in congratulating Phani!

Arash_Yavari's picture

A recent paper on Logarithmic Strain by Prof. Patrizio Neff

Dear friends:

Prof. Patrizio Neff has asked me to post the attached recent paper on Logarithmic Strain. It looks quite interesting (I haven’t read it yet).


[Closed] Post-doc position in Computational Mechanics: Crash Modeling and Simulation

Post-doc position in computational mechanics at the Department of Mechanical Engineering & Engineering Science, The University of North Carolina at Charlotte.

One-year contract starting on August 16, 2014 or as soon as possible. The position can be extended to August 15, 2016 depending on performance and funding availability.

marco.paggi's picture

PhD Scholarships in Computational Mechanics @ IMT Lucca

2014/15 PhD program in Computational Mechanics at IMT Institute for Advanced Studies Lucca

Deadline for applications – July 14th 2014, 6 pm Italian time. To apply:

Applications are now being accepted for PhD students in Computational Mechanics for the 2014/15 PhD program at IMT Institute for Advanced Studies Lucca (

rameshgupta's picture

PhD positions are available in computational mechanics at Shiv Nadar University, India

am looking for PhD students to work on Multi-functional Laminated Shell
modeling for High Altitude Airship (HAA) at computational mechanics lab,
mechanical engineering department of Shiv Nadar University (SNU), INDIA.

students can contact me for further research info, I am available on mail
( or or phone (+91

[Closed] PhD position available in computational solid mechanics at University of Rhode Island

I am looking for a PhD student to work on computational cellular biomechanics. This position will be available starting in this coming fall semester in the department of mechanical, industrial and systems engineering at University of Rhode Island.

Prior experience in finite element method and biomechanics is a plus. Interested candidates are encouraged to send a CV to Dr. Hongyan Yuan at (

Davide Bigoni's picture

Marie Curie PhD position at University of Trento (Italy): deadline June 30

Please, give a look to my research activity at and to my group at

If you are strongly motivated to work with a very active group in Solid Mechanics, we have a PhD position (3 years) available from November 2014, but the deadline for application is June 30, 2014!

The position is on a EU grant and is addressed to numerical/theoretical modelling of ceramics.

For details on the application see the attachment.


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