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Biswajit Banerjee's blog

Updated solution manual for Metamaterial book

The derivations of some equations and solutions to problems from my metamaterials books are now available for download from ResearchGate at https://www.researchgate.net/publication/320611794_Mechanical_metamaterials_some_derivations_and_examples.

-- Biswajit

Unit testing MPI applications

New article: Unit testing and continuous integration of MPI applications with googletest and cmake. http://www.parresianz.com/mpi/c++/mpi-unit-testing-googletests-cmake/

Can we predict when the Larsen-C ice shelf will fail?

My opinion is "Not yet".

What stops us from predicting the date on which the Larsen-C ice shelf will fail? http://www.parresianz.com/fracture/Larsen-B-and-peridynamics/

-- Biswajit

More on objective incremental constitutive equations

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

Reading XML files containing gzipped data in C++

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.

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

Nonlinear programming and closest point return 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

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

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

Compressing XML input files for particle simulations

Creating compressed base64 encoded XML input files for million particle DEM simulations:  http://www.parresianz.com/r/xml/xml-particle-input-file/

- Biswajit

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