38 citations · 45 across the 8 of their papers we have counts for
9 papers
A generalized calculation of the rate independent single crystal yield surface
Matthew Kasemer, Paul R. Dawson
In this paper, we discuss a method to calculate the topology of the rate independent single crystal yield surface for materials with arbitrary slip systems and arbitrary slip stren…
A Virtual Diffractometer For Creating Synthetic HEDM Images of Tessellated and Meshed Finite Element Polycrystals
Paul R. Dawson, Matthew P. Miller
To assist in the planning of in situ loading, HEDM experiments by generating synthetic diffraction images of virtual samples in loaded and unloaded states. The user designates a ta…
Using Discrete Harmonic Expansions and Equilibrium Conditions to Estimate Intragrain Stress Distributions in Polycrystals from Grain-Averaged Data
Paul R. Dawson, Matthew. P. Miller
The application of harmonic expansions to estimate intra-grain stress distributions from grain-averaged stress data is presented that extends the capabilities of the open source co…
Mechanical Analyses using Discrete Harmonic Expansions of Grain-Based Field Data
Paul R. Dawson, Matthew P. Miller
A methodology for computing expansion basis functions using discrete harmonic modes is presented. The discrete harmonic modes are determined grain-by-grain for virtual polycrystals…
A methodology to evaluate continuum-scale yield surfaces based on the spatial distributions of yielding at the crystal scale
Andrew C. Poshadel, Paul R. Dawson
Using a correlation between local yielding and a multiaxial strength-to-stiffness parameter, the continuum-scale yield surface for a polyphase, polycrystalline solid is predicted.…
Sensitivity of Crystal Stress Distributions to the Definition of Virtual Two-Phase Microstructures
Andrew C. Poshadel, Michael Gharghouri, Paul R. Dawson
A systematic study of the sensitivities of simulation input on the computed stress distributions in two-phase microstructures is presented. The study supports a related investigati…