Experimental investigation on possible dependence of plastic zone size on specimen geometry

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DOI: https://doi.org/10.3221/IGF-ESIS.07.04

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S. K. Kudari University of KwaZulu-Natal image/svg+xml B. Maiti Indian Institute of Technology K. K. Ray Indian Institute of Technology

Abstract

In this investigation the extent of the plastic zone size ahead of a crack-tip in single edge notched tension (SENT), compact tension (CT) specimens has been examined experimentally by micro-hardness technique and by elastic-plastic finite element analyses at different applied load levels. The magnitudes of the plastic zone size (PZS), rp ahead of crack-tip in the investigated specimens have been compared using normalized J-integral (J/a?y, where, a-crack length and ?y-yield stress of the material). The results show the dependence of PZS on specimen geometry due to varied in-plane crack-tip constraint. The results also demonstrate that the existing analytical models do not explain the experimental results of PZS satisfactorily.

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Issue
Vol 3 No 7 (2009): January 2009
Section
Miscellanea

How to Cite

Experimental investigation on possible dependence of plastic zone size on specimen geometry. (2013). Fracture and Structural Integrity, 3(7), pages 57-64. https://doi.org/10.3221/IGF-ESIS.07.04

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How to Cite

Experimental investigation on possible dependence of plastic zone size on specimen geometry. (2013). Fracture and Structural Integrity, 3(7), pages 57-64. https://doi.org/10.3221/IGF-ESIS.07.04

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