A finite-difference alternating method for a cost-effective determination of weight-functions for orthotropic materials in mixed-mode fracture

K. L. Chen, S. N. Atluri

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

In this paper, we present a general two-dimensional finite element alternating method for the determination of weight functions for isotropic or orthotropic cracked structures, subjected to mixed-mode loading. The numerical results show that the weight functions are indeed load-independent, and are insensitive to a wide range of virtual crack extensions of Δa (10-3a ∼ 10-9a). The present alternating procedure (which involves a stress analysis of only the uncracked structure) is indeed a most effective technique for engineering fracture and life estimation analyses.

Original languageEnglish
Pages (from-to)327-340
Number of pages14
JournalEngineering Fracture Mechanics
Volume36
Issue number2
DOIs
StatePublished - 1990

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