Skip to main content

Stability/Buckling analysis vs Geometric non-linearity

Submitted by bruno-page on

Can anyone point out some important conceptual differences between a non-linear analysis incorporating geometric-non linearity (be it using Total Lagrangian/Updated Lagrangian/ co-rotational formulation) and a stability (buckling) analysis.

Sorry for asking too fundmantal question

Well-Posed Problem in Partial Differentrial Equations

Submitted by mohammedlamine on

To avoid the Ambiguity appearing in the Formulation Process using the Numerical Methods of Partial Differentrial Equations it is Important to Satisfy the following Conditions given by Fletcher C.A.J. 1989, p18 :

 "The governing Equations and Auxiliary (Initial and Boundary) Conditions are Well-Posed Mathematically if the Following three Condtions are met:

Postdoctoral Researcher Position in Computational Materials Science

Submitted by guofengwang on

A postdoctoral researcher position is immediately available at the Richard G. Lugar Center for Renewable Energy in Indiana University-Purdue University Indianapolis (IUPUI). The researcher will work on a project on studying the surface segregation phenomena in alloy nanoparticles using atomistic simulation techniques. This project involves close collaborations with experimental scientists. The candidate should hold a doctor degree in a relevant discipline, such as Materials Science, Mechanical Engineering, Chemistry, Physics, or Chemical Engineering.

Newton International Fellowships

Submitted by Lee Margetts on

"The Newton International Fellowship scheme will select the very best early stage post-doctoral researchers from all over the world, and offer support for two years at UK research institutions."

http://www.newtonfellowships.org

If you are interested in applying for a Newton Fellowship at the University of Manchester, meet the criteria specified on the url above, and have a background in:

8th International Tutorial Workshop on PFM and Nanoscale Electromechanics of Polar Materials, August 25-27, 2010, Beijing, China

Submitted by jiangyuli on

This workshop aims
to provide in-depth description and recent advances in piezoresponse force microscopy (PFM) and nanoscale
electromechanics. It will introduce basic principles of PFM operation, relevant
instrumental aspects, and image interpretation. The theory of cantilever
dynamics, PFM contact mechanics, resolution theory, and their implications for
qualitative and quantitative data interpretation will be presented. The recent
technical advances, including vector PFM, high-frequency PFM, band-excitation
and DRFT imaging, switching spectroscopy PFM, and imaging and polarization
switching in liquids and vacuum, will also be illustrated. For ferroelectric
and multiferroic materials, applications of PFM for domain imaging, nucleation

First post - about rheology

Submitted by andrewsun on

The first post on iMechanica, which is an interesting site. First, it is scientists/engineers-targeted which is hard to get so crowded. And second it is exceptionally free. Everyone is free to post everything including ads, and there is no maintenance of "academic standard" or "quality" over here. However all the post I can see are of the topic of mechanics. I believe I will find it more interesting and helpful in the future.

Formulation of Phase-Field Energies for Microstructure in Complex Crystal Structures

Submitted by Kaushik Dayal on

This is a preprint of the article: APPLIED PHYSICS LETTERS 96, 081916 2010

Formulation of Phase-Field Energies for Microstructure in Complex Crystal Structures

by Lun Yang and Kaushik Dayal

Abstract