Fracture Mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials. In modern materials science, fracture mechanics is an important tool used to improve the performance of mechanical components. It analyzes flaws to determine which are safe and which are liable to propagate as cracks and cause failure of the flawed structure.
Fracture toughness is a quantitative way of expressing a materials resistance to brittle fracture when a crack is present. Fracture toughness values may serve as a basis for: Material comparison, Selection, Structural flaw tolerance assessment, and Quality assurance.
ASTM E399 – ASTM E1290 – ASTM E1820 – BS 7448 Part 1&2 – ISO 12135 – ISO 15653