کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1466189 | 1509921 | 2013 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Micromechanical modeling to determine the compressive strength and failure mode interaction of multidirectional laminates Micromechanical modeling to determine the compressive strength and failure mode interaction of multidirectional laminates](/preview/png/1466189.png)
Computational models to predict the compressive strength of carbon fiber reinforced polymer matrix composites are proposed here, motivated by the failure mechanisms observed in compression tests. Delamination, fiber kink-banding and their interaction are seen to dominate the failure response. An upscaled semi-homogenized laminate model is developed to predict the observed compressive response of multidirectional laminates. A generalized 2-D formulation is presented to determine the interfaces most susceptible to delamination. Subsequently, cohesive elements are added along these interfaces to introduce delamination capability in the model. Predictions of the model are compared against experimental data, and are found to be in agreement with respect to compressive strength and failure modes. Further, the effect of stacking sequence on the compressive strength and failure mode is investigated.
Journal: Composites Part A: Applied Science and Manufacturing - Volume 50, July 2013, Pages 11–21