Strategies and Numerical Implementation of Fatigue Life Models for Continuous Fiber Reinforced Polymers

摘要

Structural components made of continuous fiber reinforced polymers are exposedto repeatedly-applied loads leading to fatigue failure during the service life. To predictthe lifetime and achieve the proper industrial part design against fatigue failure, thedevelopment of numerical simulation tool is crucial. Even though fatigue phenomenain composites have been intensively investigated, having a unique and reliablenumerical simulation strategy remains a great challenge. The primary issue to addressis to establish a robust constitutive modeling including non-linear behaviors, namelyprogressive damage mechanism and inelastic behavior of constituents at micro andmeso scales. Nonetheless, the complexity increases when time-dependent or cyclicbehavior is involved. These issues on material modeling and lifetime prediction forcomposite materials were addressed in this work. Implementation is performed inenvironmental solution for structural design (Virtual Performance Solution. SolverNotes Manual, ESI Group, Paris, France. 2013).