3329 Discrete Dislocation Dynamics Simulation on Mechanical Properties of Dislocation Substructures

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  • 3329 離散転位動力学法を用いた転位下部構造の力学特性に関する研究(S18-2 結晶塑性解析,S18 材料の強度と組織)

Abstract

This study intends to clarify the mechanical roles and structural stability of cell wall structures for crystalline solids by utilizing discrete dislocation dynamics method. Cell walls with several densities and interspacings (i.e., cell size) made up with periodically aligned dislocations and redundant dislocations are artificially constructed in a unit cubic area. The redundant dislocations whose resultant Burgers vector produces compressive stress field in the cell interior region are introduced to enhance the long range internal stress fields.

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