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

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...