Variational approach to subgrain formation

Variational approach to subgrain formation

A variational formulation of the incrementally-linear rigid-plastic approximation to crystal plasticity is set up. A crystal deformed in plane strain by symmetric double slip is considered as an example. It is shown under which conditions an inhomogeneous deformation leading to subgrain formation is...

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Veröffentlicht in:International journal of materials research 2022-01, Vol.96 (6), p.602-607
Hauptverfasser: Sedláček, Radan, Kratochvil, Jan
Format: Artikel
Sprache:eng
Schlagworte:
Non-convex minimization
Subgrain formation
Variational formulation
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Beschreibung
Zusammenfassung:A variational formulation of the incrementally-linear rigid-plastic approximation to crystal plasticity is set up. A crystal deformed in plane strain by symmetric double slip is considered as an example. It is shown under which conditions an inhomogeneous deformation leading to subgrain formation is energetically more favorable than the homogeneous one.
ISSN:1862-5282
2195-8556
DOI:10.3139/ijmr-2005-0107