Assessment of Intralaminar Progressive Damage and Failure Analysis Methods Using an Efficient Evaluation Framework

摘要

Reducing the timeline for development and certification for composite structureshas been a long standing objective of the aerospace industry. This timeline can befurther exacerbated when attempting to integrate new fiber-reinforced compositematerials due to the large number of testing required at every level of design.Computational progressive damage and failure analysis (PDFA) attempts to mitigatethis effect; however, new PDFA methods have been slow to be adopted in industrysince material model evaluation techniques have not been fully defined. This studypresents an efficient evaluation framework which uses a piecewise verification andvalidation (V&V) approach for PDFA methods. Specifically, the framework isapplied to evaluate PDFA research codes within the context of intralaminar damage.Methods are incrementally taken through various V&V exercises specifically tailoredto study PDFA intralaminar damage modeling capability. Finally, methods areevaluated against a defined set of success criteria to highlight successes andlimitations.