TMS 2018 Annual Meeting & Exhibition

The 147th Annual Meeting took place at the modern Phoenix Convention Center in sunny and warm Arizona from March 11–15, 2018. From our research group, Dr. Eisenlohr, Eureka Pai Kulyadi, and Aritra Chakraborty attended the conference—accompanyied by a number of other students and advisors from Michigan State University. Eureka presented a poster outlining the direction…

Research published in Scripta Materialia

Fourier-based spectral method solution to finite strain crystal plasticity with free surfaces by Tias Maiti and Philip Eisenlohr A plastically dilatational material model is proposed that enables to simulate the mechanical response of non-compact geometries (containing free surfaces) by means of established spectral methods without any particular adaptations, i.e. in combination with arbitrary constitutive laws…

Congrats to Tias for successfully defending his PhD thesis!!

Tias Maiti successfully defended his thesis on July 27, 2017. He modeled stage II hardening that is frequently observed in single crystal tension experiments using a Crystal Plasticity Fast Fourier Transform framework with physics-based material models. We wish Tias all the best for his upcoming endeavor in Portland, OR! From left to right: Aritra Chakraborty…

Research published in European Journal of Mechanics / A Solids

Evaluation of an inverse methodology for estimating constitutive parameters in face-centered cubic materials from single crystal indentations by Aritra Chakraborty and Philip Eisenlohr The feasibility to determine the adjustable parameters of single crystal plasticity constitutive laws by an inverse approach that minimizes the deviation between the measured and simulated indentation response of individual grains (of…

LaTeX submission on EVISE

When submitting a zipped file containing all LaTeX source files, figures, etc., one needs to make sure that only a single file with “.tex” extension is present. So far, we did not investigate whether %!TEX root = <master file name> in supplementary source files would help EVISE to identify the master document.

Research published in Acta Materialia

Identification of Whisker Grain in Sn Coatings by Analyzing Crystallographic Micro-Texture using Electron Back-Scatter Diffraction by Piyush Jagtap, Aritra Chakraborty, Philip Eisenlohr, and Praveen Kumar Here, we attempt to understand the age-old question of “where do whiskers in Sn coatings grow?” by performing grain orientation mapping in conjunction with a simple analysis of the stress…

Setup EMSoft on HPCC@MSU

EMSoft is an open source package that allows users to simulate EBSD and ECCI images. The public repository can be found via the following link: Currently, only GNU compiler is officially supported and tested by the developer. To avoid any conflict with the DAMASK settings on HPCC (Intel bases system), it is recommended to…

Research published in JOM

Subsurface Grain Morphology Reconstruction by Differential Aperture X-ray Microscopy by Philip Eisenlohr, Pratheek Shanthraj, Brendan Vande Kieft, Thomas R. Bieler, Wenjun Liu, and Ruqing Xu A multistep, non-destructive grain morphology reconstruction methodology that is applicable to near-surface volumes is developed and tested on synthetic grain structures. This approach probes the subsurface crystal orientation using differential…

PS1 tricks for bash shell environment

use export PS1=”\[$(tput setaf 4)\]\[$(tput bold)\]\u@\h:\W\\$ \[$(tput sgr0)\]” instead of export PS1=”\[\e[1;34m\]\u@\e[1;31m\h\e[m\[\e[1;34m\]:\W>\[\e[0m\]” in .environment file, to avoid overlapping of long commands in bash shell

TMS 2017 Annual Meeting & Exhibition

Group members Aritra Chakraborty (2nd from left), Tias Maiti (center), and graduate student Jialin Liu (right) together with Robert “Bob” Hayes (Metals Technology, Inc., 2nd from right) and Philip Eisenlohr (left) after an Indian dinner in San Diego, CA, during the 146th TMS Annual Meeting.

Mentat segmentation fault on DECS

The increase of the stack size (ulimit -s) that is triggered in DAMASK_env can lead to a segmentation fault when calling mentat. To circumvent this issue, progressively reduce the stack size with ulimit -s xxx until the connection to XQuartz works out.

Moved gri-plotting to github

I decided to fully share the gri-plotting repository and relocated it to Please update your settings: cd $GRI git remote add origin git branch –set-upstream-to=origin/master master