Strong coupling methods in multi-phase and multi-scale modeling of inelastic behavior of heterogeneous structures

✍ Scribed by Adnan Ibrahimbegović; Damijan Markovič

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 1008 KB
• Volume: 192
• Category: Article
• ISSN: 0045-7825
• DOI: 10.1016/s0045-7825(03)00342-6

✦ Synopsis

In this work we address several issues pertaining to efficiency of the computational approach geared towards modeling of inelastic behavior of a heterogeneous structure, which is represented by a multi-scale model. We elaborate in particular upon the case where the scales remain coupled throughout the computations, implying a constant communication between the finite element models employed at each scale, and only briefly comment upon our treatment of inelastic analysis of a more classical case where the scales can be separated. We also discuss different manners of representing a complex multi-phase microstructure within the framework of the finite element model constructed at that scale, selecting a model problem of two-phase material where each phase has potentially different inelastic behavior.

Several numerical examples are given to further illustrate the presented theoretical considerations.