Stephen Langer

Publications

A Non-Schmid Crystal Plasticity Finite Element Approach To Multi-Scale Modeling Of Nickel-Based Superalloys

August 01, 2016

Author(s):

Shahriyar Keshavarzhadad, S K. Ghosh, Andrew C. Reid, Stephen A. Langer

This paper develops non-Schmid crystal-plastic constitutive models at two length scales, & bridges these length scales in a multi-scale framework. The...

gtklogger: A Tool For Systematically Testing Graphical User Interfaces

August 20, 2015

Author(s):

Stephen A. Langer, Faical Y. Congo, Andrew C. Reid, Rhonald Lua, Valerie R. Coffman

We describe a scheme for systematically testing the operation of a graphical user interface. The scheme provides a capability for generating event logs, which...

OOF3D: An Image-Based Finite Element Solver for Materials Science

March 28, 2012

Author(s):

Valerie R. Coffman, Andrew C. Reid, Stephen A. Langer, Gunay Dogan

Recent advances in experimental techniques (micro CT scans, automated serial sectioning, electron back-scatter diffraction, synchrotron radiation x-rays) have...

Modeling Microstructures with OOF2

September 01, 2009

Author(s):

Andrew C. Reid, Rhonald Lua, R E. Garcia, Valerie R. Coffman, Stephen A. Langer

OOF2 is a program for computing the properties and behavior of material microstructures, beginning with an image of the microstructural geometry. OOF2 uses...

Finite Element Implementation of a Thermodynamic Description of Piezoelectric Microstructures

March 01, 2005

Author(s):

E Garcia, W C. Carter, Stephen A. Langer

A model and numerical framework is developed for piezoelectric materials. The model treats the piezoelectric and electrostrictive effects by incorporating...

Stephen Langer

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Publications