Fatigue Behavior in Fiber-Reinforced Plastics

There are several damage phenomena observed in fiber composites [Pg.127]

Failure itself is a continuous process and, in contrast to the fracture mechanics of isotropic materials, is often called damage mechanics [120]. Failure usually begins with micro-damage in the form of cracks in the matrix itself, at the interface between fiber and matrix or, rarely - in fiber dominated laminates - in the fibers themselves. [Pg.128]

Fiber reinforced components are often used in applications with strict requirements regarding system stability over a long service life (e.g., in the traffic sector, energy supply 10 years, building construction 100 years) therefore, reliable prediction of operating strength is economically extremely important. Also the fact that there are hardly any practical inspection methods for evaluating the system stability of components in continuous operation emphasizes the importance of component-specific service life prediction. [Pg.128]

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