STRENGTH ANALYSIS MODEL CONSIDERING IN-SITU EFFECTAND EXPERIMENT OF COMPOSITE

Abstract

Abstract: A numerical analysis model is established to predict the strength of composite. The 3-d PUCK criterion is used as the failure criterion, and the degradation criterion based on the continuum damage mechanics (CDM) is adopted in the model. Meanwhile, the in-situ effect is taken into account. The analysis model is implemented by the user material subroutine (UMAT) embedded in ABAQUS. The accuracy of the model is verified by tensile test of carbon fiber composites with open hole. The results show that the model can predict the strength of the test and the damage development process,the in-situ effect should be considered in the strength analysis of composite materials.

Key words: composite, numerical study, PUCK criteria, in-situ effect, experiment

CLC Number:

TB332

YE Ti, YUE Yuan, MA Ming-ze. STRENGTH ANALYSIS MODEL CONSIDERING IN-SITU EFFECT
AND EXPERIMENT OF COMPOSITE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(2): 49-53.

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STRENGTH ANALYSIS MODEL CONSIDERING IN-SITU EFFECT
AND EXPERIMENT OF COMPOSITE

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