摘要
以ANSYS为平台编制了具有可移植性的APDL程序,建立了损伤累积模型,对平面编织层合板的损伤破坏行为进行了数值仿真。该模型对适合于单向铺层的Hanshin判据和Reddy刚度衰减方法进行了相应的修正。为验证模型的有效性,对G803/5224平面编织光滑板、孔板进行了相应的试验研究。结果表明,该模型仿真结果与试验结果吻合,并且比较简单直观,为平面编织层合板的损伤扩展与破坏的研究提供了便于工程应用的数字化手段。
Based on the software of ANSYS, an APDL code was programmed in which a progressive damage model was established to simulate the failure and the behavior of in-plane woven composite laminates numerically. In the model Hanshin criteria and Reddy stiffness attenuation methods which fit for uni-directional lamina were modified for in-plane fabrics. The experimental researches were carried out on G803/5224 laminates and laminates with a hole to verify this model. The simulating results with this model are coordinate with the test results very well. This method is relatively simple and intuitional when it is used to estimate the damage propagation and residual tensile strength. It would provide a numerical method for the analysis of the damage propagation and tensile failure of woven composite laminates, which is suitable for engineering application.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2007年第6期180-184,共5页
Acta Materiae Compositae Sinica
关键词
平面编织复合材料
数值仿真
损伤
拉伸强度
plain woven composites
numerical simulation
damage
tensile strength
