Application of Damp Newton Algorithm on FEPG Platform

Abstract:

Damp Newton algorithm based on FEPG system is developed for calculating strain softening problem. The algorithm can solve displacement and yield surface equation simultaneously. Soften modulus is introduced into D-P yield function. The example result shows that, the algorithm with damp factor can be used to solve softening problems. The plastic theory described by finite element weak form has no requirement of continuity, so appropriate outcome can be obtained by first-order element. Descent segment of stress-strain curve and cloud picture of finite shear band are presented.

• Periodical: Applied Mechanics and Materials (Volumes 744-746)
• Pages: 437-441
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.744-746.437
• Online since: March 2015
• Authors: Shi Wei Hou*, Yi Fang Zhang, Jin Hong Qu, Xiu Li Du
• Keywords: Damp Newton Method, Shear Band, Strain Localization, Strain Softening

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