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Solution Methods for General Stress Concentrators in Anisotropic Heterogeneous Media

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Abstract:

The increasing use of fibre-reinforced composites in high performance structures has brought a renewed interest in the analysis of cracks, wedges, and multi-material wedges in anisotropic materials. This paper will address three crucial stages of the general stress concentrator analysis: i) numerical procedures for the determination of eigenvalues and eigenvectors in Williams-like asymptotic expansion for multi-material wedge; ii) approaches to an accurate calculation of the near crack tip fields – the application of so-called two-state (or mutual) conservation integrals; iii) application of fracture criteria for the assessment of fracture inception at the general stress concentrators - concept of the so called finite fracture mechanics.

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Periodical:

Key Engineering Materials (Volumes 348-349)

Pages:

677-680

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.348-349.677

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Online since:

September 2007

Authors:

Michal Kotoul, Tomáš Profant, Oldřich Ševeček, Martin Krejcir

Keywords:

Anisotropic, Dislocation Distribution Technique, Fracture Criterion, General Stress Concentrators, Mutual Conservation Integrals

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

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DOI: 10.4028/www.scientific.net/kem.324-325.1143

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