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A continuum damage model for composite laminates: Part III - Fatigue

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Abstract The mesoscale continuum damage model for laminated composites that has been developed for the past 10 years at AMADE research group is extended for fatigue life and residual strength predictions. The… Click to show full abstract

Abstract The mesoscale continuum damage model for laminated composites that has been developed for the past 10 years at AMADE research group is extended for fatigue life and residual strength predictions. The same intra-laminar damage mechanisms are considered by means of the LaRC04 failure criteria, but a new set of functions are introduced to account for the degradation of the material under fatigue loads. The cycle jump approach is adopted within the finite element code to reduce the computational cost. In the follow-up paper part IV (Llobet et al., submitted for publication), the computational model is validated by simulating the progressive failure mechanisms of open-hole and double-edge notched specimens under static, tension-tension fatigue and residual strength load cases. All the experimental data is also described in detail in the accompanying part.

Keywords: damage model; part; fatigue; continuum damage; model; damage

Journal Title: Mechanics of Materials
Year Published: 2020

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