Experimental methods for determining fracture process zone and fracture parameters

S. P. Shah

doi:10.1016/0013-7944(90)90178-J

Experimental methods for determining fracture process zone and fracture parameters

S. P. Shah^*

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

For quasi-brittle materials like concrete, rock and ceramic it is not possible to determine fracture toughness using laboratory-sized specimens and linear elastic fracture mechanics. This inapplicability of the conventional fracture mechanics is due to fracture process zone, R-curve type of behavior and precritical stable crack growth. In this keynote paper, a two-parameter fracture model developed at Northwestern University is described. The model is based on observations of fracture processes using laser holography as well as acoustic emission measurements.

Original language	English (US)
Pages (from-to)	3-14
Number of pages	12
Journal	Engineering Fracture Mechanics
Volume	35
Issue number	1-3
DOIs	https://doi.org/10.1016/0013-7944(90)90178-J
State	Published - 1990

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/0013-7944(90)90178-J

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abstract = "For quasi-brittle materials like concrete, rock and ceramic it is not possible to determine fracture toughness using laboratory-sized specimens and linear elastic fracture mechanics. This inapplicability of the conventional fracture mechanics is due to fracture process zone, R-curve type of behavior and precritical stable crack growth. In this keynote paper, a two-parameter fracture model developed at Northwestern University is described. The model is based on observations of fracture processes using laser holography as well as acoustic emission measurements.",

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AB - For quasi-brittle materials like concrete, rock and ceramic it is not possible to determine fracture toughness using laboratory-sized specimens and linear elastic fracture mechanics. This inapplicability of the conventional fracture mechanics is due to fracture process zone, R-curve type of behavior and precritical stable crack growth. In this keynote paper, a two-parameter fracture model developed at Northwestern University is described. The model is based on observations of fracture processes using laser holography as well as acoustic emission measurements.

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Experimental methods for determining fracture process zone and fracture parameters

Abstract

ASJC Scopus subject areas

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