Prediction of Inelastic Behavior of Composite Laminates Using Multi-Surface Continuum Damage-Plasticity

Bijan Mohammadi; Hossein Hosseini-Toudeshky; Mohammad Homayoun Sadr-Lahidjani; Shahram Aivazzadeh

doi:10.4028/www.scientific.net/AMR.47-50.773

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 47-50Prediction of Inelastic Behavior of Composite...

Prediction of Inelastic Behavior of Composite Laminates Using Multi-Surface Continuum Damage-Plasticity

Abstract:

The recently performed investigations in continuum plastic-damage analysis of composite laminates by the authors showed that using a single hardening internal variable for damage and plasticity surfaces may prone to significant errors in response and failure load for some lay-ups. In this paper, the new technique of coupled continuum plastic-damage mechanics including multisurface dissipation potentials are employed to improve the results. The response and failure loads of the laminated composites with different lay-ups are predicted using elastic, damage, and damageplasticity conditions with single and multi surface plasticity and compared with the available experimental results.