The interaction of fracture and stresswaves in brittle material - An experiment to verify cleaving waves

Sundaresan, NJ (1984) The interaction of fracture and stresswaves in brittle material - An experiment to verify cleaving waves. International Journal of Fracture, 24 . R19-R21. ISSN 0376-9429

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Abstract

The experimental verification of the cleaving wave which could form the theoretical basis for the correlation between fracture toughness and stress wave propagation characteristics is briefly considered. The stress waves generated in an unflawed material subject to a static stress level in which a crack of a certain length and width is formed spontaneously are analyzed. Crack nucleation and propagation are found to produce a wave which tends to cleave the surrounding material along a plane. This wave can interact with other weak points in the surrounding material and induce additional crack nucleations. Hence, the generation and propagation characteristics of this wave can significantly influence the fracture strength. An oscilloscope record of transient strain in a plate having a notch subject to impact load suggests the presence of a cleaving wave.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Springer Verlag
Uncontrolled Keywords: Brittle materials; Fracture mechanics; Stress waves; Wave interaction; Cleavage; Metal plates; Notch tests; Tensile stress
Subjects: ENGINEERING > Structural Mechanics
Division/Department: UNSPECIFIED
Depositing User: Ms. Alphones Mary
Date Deposited: 20 Jun 2005
Last Modified: 24 May 2010 09:39
URI: http://nal-ir.nal.res.in/id/eprint/798

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