Dissipating mechanical mechanisms and their link to morphology in polyamide toughened carbon-epoxy UD laminates

37th Risø International Symposium on Materials Science

Baranger, Emmanuel^1

LMT Cachan, ENS Cachan, CNRS, Université Paris-Saclay, 61 avenue du Président Wilson, Cachan Cedex

94235, France^1

关键词: Carbon-epoxy;    Carbon/epoxy laminates;    Curing cycle;    Evolution law;    Mechanical mechanisms;    Toughening mechanisms;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/139/1/012012/pdf
DOI  :  10.1088/1757-899X/139/1/012012

来源: IOP

【 摘 要 】

Toughened carbon/epoxy laminates include thermoplastic particles. Depending of the curing cycle, the morphology of the thermoplastic phases can differ. This strongly impacts the degradation scenario of the composite. In the present paper, such reinforced laminates are evaluated. Different morphologies are studied. Classical experiments are used to evaluate the impact of the morphology on the damage and plasticity evolution laws at the scale of the ply. Some elements to model the toughening mechanism at the inter-ply scale are given and limitations are discussed.