Browsing by Author "McDowell, David L."

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Mesoscale cyclic crystal plasticity with dislocation substructures

Castelluccio, Gustavo M.; McDowell, David L. (Elsevier, 2017-06-21)

Constitutive formulations have increasingly focused on physically-based approaches that are less phenomenological and incorporate information from multiple scales. Most dislocation-based plasticity approaches reflect ...
A rationale for modeling hydrogen effects on plastic deformation across scales in FCC metals

Castelluccio, Gustavo M.; Geller, Clint B.; McDowell, David L. (Elsevier, 2018-07-11)

Although there have been many investigations on the effects of hydrogen on the plastic deformation of metals, an intense debate continues about the physical mechanisms responsible. Most puzzling is the fact that hydrogen ...
Sensitivity of polycrystal plasticity to slip system kinematic hardening laws for Al 7075-T6

Hennessey, Conor; Castelluccio, Gustavo M.; McDowell, David L. (Elsevier, 2017-01-22)

The prediction of formation and early growth of microstructurally small fatigue cracks requires use of constitutive models that accurately estimate local states of stress, strain, and cyclic plastic strain. However, few ...

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