Microcracking in Graphite-Epoxy Composites
AEROSPACE CORP EL SEGUNDO CA MATERIALSSCIENCES LAB
Pagination or Media Count:
Microcracking in composite materials is commonly caused by ply stiffness variations in crossply layup during application of applied stress, and by differential thermal expansion coefficients of the fiber and the matrix during thermal excursions. It is responsible for changes in macro- and micromechanical properties, permeability to gases, and dimensional instability. Theories, experimental techniques, and effects of microcracking are reviewed. The coefficient of cracking expansion is defined, and procedures for reducing deleterious effects of microcracking on composite structures are presented.
- Laminates and Composite Materials