Finite element implementation of dislocation-density-based crystal plasticity model and its application to pure aluminum crystalline materials

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• 作者：Sangyul Ha^a ; ^{dubuking@postech.edu} ; Jin-Hee Jang^b ; KiTae Kim^b
• 关键词：Crystal plasticity model ; Dislocation densities ; Electron backscattered diffraction (EBSD) ; Digital image correlation (DIC) ; Shadow Moiré
• 刊名：International Journal of Mechanical Sciences
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：120
• 期：Complete
• 页码：249-262
• 全文大小：1723 K
• 卷排序：120

文摘

A new time-integration method is presented for a dislocation-density-based CP model. An implicit method with the consistent tangent moduli is implemented. The computational procedure is validated with experiments of aluminum materials. Indentation of single crystals and simple shear of the multicrystal are performed.