- 期刊
Study on Fracture Simulation of Composite Material Structures by Extended Finite Element Method
複合材料結構斷裂仿真與預測的擴展有限元方法研究
摘要
In the simulation of structural strength, the finite element method has always been an important means. In this paper, the extended finite element method (XFEM) was used to simulate the three-point bending process of carbon fiber composite laminates. The load-displacement curves obtained by simulation were compared with the experimental results, and it was found that the extended finite element method could accurately simulate the fracture propagation process of carbon fiber composite laminates during three-point bending. The findings of this paper can reduce part of the destructive experiments, so as to save the related costs.
並列摘要
在結構強度的模擬中，有限元法一直是一種重要的手段。本文提出了一種適用於碳纖維複合材料板斷裂研究的擴展有限元法（XFEM）對碳纖維複合材料層合板的三點彎曲過程進行了數值模擬。將模擬得到的荷載－位移曲線與實驗結果進行對比，發現本文提出的擴展有限元法能夠準確模擬碳纖維複合材料層合板三點彎曲過程中的斷裂擴展過程以及其受力情況。本文的研究成果可以替代一部分的破壞性實驗，從而節約相關成本。