Open Access

ARTICLE

A Strain Energy Density Rate Approach to the BEM Analysis of Creep Fracture Problems

C.P. Providakis¹

1 Department of Applied Sciences, Technical University of Crete, GR-73100 Chania, Greece

Structural Durability & Health Monitoring 2006, 2(4), 249-254. https://doi.org/10.3970/sdhm.2006.002.249

Abstract

This paper explores the concept of strain energy density rate in relation to the crack initiation in fracture analysis problems arising in creeping cracked structural components. The analysis of the components is performed by using the boundary element methodology in association with the employment of singular boundary elements for the modeling of the crack tip region. The deformation of the material is assumed to be described by an elastic power law creep model. The strain energy density rate theory is applied to determine the direction of the crack initiation for a center cracked plate in tension which is subjected to Mode I loading conditions.

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