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A new idea and a not so new one

Submitted by Biswajit Banerjee on

Two new papers grabbed my attention on my long unread list of journal tables of contents in Google Reader. 

1) The first was


Ideomechanics of transitory and dissipative systems associated with length, velocity, mass and energy
by G.C. Sih

where it is stated that

" One of the rules of the development of IDM is that the “flow of nature” takes precedent when deducting and/or constructing quantitative results. It is hoped that

Geometric non linearity question from Crisfield's book

Submitted by kajalschopra on

Hi,

I am reading the book on-Non linear finite element analysis by M.A.Crisfield-as some of you know(as I've posted questions earlier too),it's more of a self study that I am doing-I have got some fundamental questions in chapter 3-the topic on:

Section 3.3 A Truss element based on Green's strain.

Basically the author has divided into 3 sections wherein we have:

Section 3.3.1 Geometry and stress strain relationships

Section 3.3.2 Equilibrium and internal force vector

Section 3.3.3 The tangent stiffness matrix

Post-doc Smoothed XFEM for Nano-CMOS Semi-Conductors Glasgow/Cardiff University

Submitted by Stephane Bordas on

A one-year post-doc is available in conjunction with

1) Prof. Asenov, University of Glasgow

2) Dr. Bordas, University of Glasgow/Cardiff

 to study the behaviour of nano-CMOS semi-conductors.

Please write to stephane dot bordas at g ma i l dot com 

 for details with your:

1) CV

2) Three references

3) a statement of why you are qualified and interested in this position

 You should

1) have a strong background in finite element methods

User subroutines in ABAQUS

Submitted by Nicholas Epiphaniou on
Choose a channel featured in the header of iMechanica

Dear All,



Could you suggest any literature or online step by step tutorial on how to create your own subroutines in ABAQUS like umeshmotion or umat. Any relevant information would be much appreciated. I am looking for information that are not covered in the ABAQUS manual.



Thanks very much in advace,



Nicholas


Geometric non linearity-peymann et all

Submitted by kajalschopra on

Consider attached file.It lists the details of the Timoshinko method for geometric non linear analysis.

Can anyone tell me how is it diiferent from incremental analysis conceptually?

Is it used commercially?Which method is more sophisticated-Timoshinko,incremental or Newton Raphson?

Please help