Fracture mechanics testing in linear elasticity
Measuring tenacity tests - Mechanical fracture

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Fracture mechanics testing in linear elasticity


Measuring tenacity tests - Mechanical fracture

Author : Dominique FRANÇOIS

Publication date: December 10, 2007 | Lire en français

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1. Fracture mechanics testing in linear elasticity

1.1 Theoretical foundations

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1.1.1 Available energy rate

A part made of an elastic material contains a crack of area A. It is subjected to a force F. The question is whether this crack is stable or propagating. It is subjected to a force F. The question is whether this crack is stable or propagating. It is shown that equilibrium with respect to crack extension is achieved if the so-called available energy rate G is equal to a critical value G c . G is defined by the formula...

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