July 20, 2020

Rollett research team part of AFRL Challenge

The Air Force Research Laboratory (AFRL) issued four challenges pertaining to metal Additive Manufacturing (AM).  Prof Aschley Spear and senior, Carter Cocke from the University of Utah, along with Prof Tony Rollett, CMU-MSE and Ricardo Lebensohn from Los Alamos National Laboratory chose to compete in Challenge #4: Micro-scale Structure-to-Properties Predictions Given an explicit microstructure representation, predict aggregate stress-strain behavior and strain in particular grains.

 

The primary objective was to predict grain-average elastic strain tensors for 28 specific grains in a sample of AM IN625 at specified macroscopic loading points under uniaxial tensil loading. Slides 17 and 18 in the following link provide some images capturing the challenge scenario: https://materials-data-facility.github.io/MID3AS-AM-Challenge/Challenge4ProblemStatement_2019Release.pdf