education

Rehashing and clarifying some old work for a friend: http://www.parresianz.com/mechanics/spin-tensor-and-Green-Naghdi-rate/

-- Biswajit

Below is the video link to my first lecture video, where in I tried to demonstrate the failure of brittle materials using simple experiments.
https://www.youtube.com/watch?v=yG76IhmKyRY&t=1s

Check out my new article on a source of confusion in material and spatial versions of constitutive equations at http://www.parresianz.com/mechanics/incremental-objectivity/

-- Biswajit

Organizers invite to attend the summer school 

Mechanics for the green economy: Modeling and High Performance Computing in  multi-scale and multi-physics processes.

Brescia and Trento, Italy,  19-25 July 2017.

Deadlines:

Fellowship deadline is Sunday, May 7. Registration deadline July 1, 2017.

Lecturers:

Prof. W. Bangerth, Colorado State University, USA

The last two parts of the series are at:

http://www.parresianz.com/dem/CFL-condition-discrete-elements-part-3/

http://www.parresianz.com/dem/CFL-condition-discrete-elements-part-4/

-- Biswajit

Once upon a time, the CEO of my company asked me why I did so much software engineering for my work.  My response was that software engineers were unlikely to produce what I needed in the short time frames that I had at my disposal without me spending a huge amount of time training them.

Creating a multi-keyframe animation with d3.js.  http://www.parresianz.com/javascript/d3js/d3-animation-closest-point-return/

Something that should be in the toolbox of every modern researcher.  Static plots in journals are not good enough given today's technology.

-- Biswajit

New article: Part 8: The geometric closest-point algorithm for the Arena model. http://www.parresianz.com/mechanics/plasticity/algorithm/geometric-closest-point-return/

-- Biswajit

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 

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

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

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

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

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

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.

This is a reminder that the deadline to apply for the financial aid for the summer course in Udine is approaching:  March 22. 

Short course at Centre International de Sciences Mechanique (CISM), Udine.

May 22-26, 2017

Lecturers:  S Forest, I Groma, D McDowell, S Mesarovic, J-N Roux, H Zbib

The flyer is attached.  Register at:   http://www.cism.it/courses/C1703/ 

Part 2 of plane stress Drucker-Prager return algorithm: http://www.parresianz.com/mechanics/plasticity/algorithm/plane-stress-dr...

-- Biswajit

New blog post:  Plane stress Drucker-Prager plasticity (part 1): http://www.parresianz.com/mechanics/plasticity/algorithm/plane-stress-dr...

-- Biswajit

Recently, Politecnico di Milano in Italy has attempted to force all teaching at Master level in English.  This has been stopped by some academics who went to different levels of administrative courts, and recently there was a prononciation of the Supreme Court.  The matter is not settled yet, but you can find an account of this with various links here.