education

Summer School on Computational Materials Science at Texas A&M

Submitted by AnkitSri on Tue, 03/28/2017 - 20:43

On behalf of the Center for intelligent Multifunctional Materials and Structures (CiMMS) and the Department of Materials Science & Engineering at Texas A&M University, we would like to announce the coming, sixth iteration of the Texas A&M Summer School on Computational Materials Science (see attached flyer). The school will take place in College Station, TX from July 23 – Aug. 4. Application deadline is May 1.

Isotropic elasticity, 4-tensor projections, and closest point return

Submitted by Biswajit Banerjee on Tue, 03/28/2017 - 19:28

education

Plasticity

Part 7 of the series: Specializing for isotropic elasticity and rank-4 tensor projections http://www.parresianz.com/mechanics/plasticity/algorithm/closest-point-return/

-- Biswajit

Nonlinear programming and closest point return plasticity

Submitted by Biswajit Banerjee on Mon, 03/27/2017 - 03:44

education

Plasticity

New article: Nonlinear programming and closest point return plasticity http://www.parresianz.com/mechanics/plasticity/algorithm/primal-dual-closest-point-return/

This article tries to justify the use of backward Euler stress updates.

-- Biswajit

Forward vs backward Euler for return algorithms

Submitted by Biswajit Banerjee on Sat, 03/25/2017 - 22:50

education

2D plasticity

In Part 5 of my series on return mapping for plane stress plasticity, I claim that the obsession with backward Euler is not justified if accuracy is important. See http://www.parresianz.com/mechanics/plasticity/algorithm/plane-stress-drucker-prager-return-part-5/.

Let me know if you disagree and why.

-- Biswajit

More on plane stress Drucker-Prager plasticity

Submitted by Biswajit Banerjee on Fri, 03/24/2017 - 20:50

education

2D plasticity

Parts 3 and 4 of the series on plane stress Drucker-Prager plasticity are now online. More to come soon.

Check out

http://www.parresianz.com/mechanics/plasticity/algorithm/plane-stress-drucker-prager-return-part-3/

and

http://www.parresianz.com/mechanics/plasticity/algorithm/plane-stress-drucker-prager-return-part-4/

GADeS Summer School on Stability and Bifurcation of Dynamical Systems: Theoretical Aspects and Applications

Submitted by Mike Ciavarella on Thu, 03/23/2017 - 09:46

Dinamica e stabilità

First announcement of
GADeS Summer School on

Stability and Bifurcation of Dynamical Systems:
Theoretical Aspects and Applications

July 3-7, 2017, Savona, Italy

Arc Length Continuation method fails at low arc length values.

Submitted by maharshi.kintada on Fri, 03/17/2017 - 17:44

education

Arclength

Continuation methods

I have implemented a Arc length continuation method for material non-linearity. The program quits with low arc length values while it progresses well for high arc length values. I am attaching a png image for your understating about the nature of the force deformation curve. Can you please clarify me about the problem and provide me any suggestions on it.

Thanks in advance.