Instability of Gradient-dependent Elastoviscoplastic Model for Clay and Strain Localization Analysis

Authors

F. Oka, Kyoto University
A. Yashima, Gifu University
K. Sawada, Gifu University
Elias C. Aifantis, Michigan Technological UniversityFollow

Document Type

Article

Publication Date

3-2000

Department

Department of Mechanical Engineering-Engineering Mechanics

Abstract

The instability of the strain gradient-dependent elastoviscoplastic constitutive model for water saturated clay is studied in relation to the strain localization phenomena and pattern formation during deformation. The second-order gradient of volumetric viscoplastic strain is introduced into the constitutive equations to account for the non-local effects associated with the motion of microstructures. Boundary value problems by using finite element are formulated and strain localization analyses are carried out.

Publisher's Statement

© 1999 Elsevier Science S.A.

Publication Title

Computer Methods in Applied Mechanics and Engineering

Recommended Citation

Oka, F., Yashima, A., Sawada, K., & Aifantis, E. C. (2000). Instability of Gradient-dependent Elastoviscoplastic Model for Clay and Strain Localization Analysis. Computer Methods in Applied Mechanics and Engineering, 183(1-2), 67-86. http://doi.org/10.1016/S0045-7825(99)00212-1
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/7383