一般各向异性复合材料层板基体损伤性能衰减研究(Ⅱ)——分解刚度值确定与层板性能衰减研究

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Constitutive Relation and Stiffness Degradation of Cracked Anisotropic Composite Laminates(Ⅱ)——Determination of Resolved Stiffness and Investigation of Stiffness Degradation for Cracked Laminates

1.
Hebei Institute of Technology, Tangshan, Hebei 063009, P. R. China;
2.
Beijing University of Aeronautics and Astronautics, Beijing 100083, P. R. China

摘要: 本文尝试将损伤复合材料层板性能衰减研究扩展到含一般各向异性铺层的基体开裂层板对第(Ⅰ)部分提出的分解刚度法给出分解刚度值确定方程,完整了开裂层板本构关系解;对(θ_m/90_n)_s开裂层板刚度衰减进行了数值计算并对计算结果进行了讨论.
- 复合材料层板 /
- 一般各向异性 /
- 损伤 /
- 分解刚度 /
- 性能衰减
Abstract: The study on property degradation of damaged composite laminates is extended to anisotropic laminates with matrix cracking. In(Ⅱ) of the paper, a solution for partitioned stiffness is given to complete the constitutive relations developed in(Ⅰ). The stiffness degradation in(θ_m/90_n)_s cracked laminates is calculated and the results are discussed.
- composite laminate /
- anisotropy /
- damage /
- stiffness partition /
- property degradation

[1]	R.J.Nuismer and S.C.Tan,Constitutive relations of a cracked composite lamina,J.Comp.Mater.,22(4)(1988),306-321.
[2]	R.Talreja,Yalvac Selim,et al.,Transverse cracking and stiffness reduction in crossply laminates of different matrix toughness,J.Comp.Mater.,26(11)(1992),1644-1663.
[3]	华玉、王兴国、郦正能,一般各向异性复合材料层板基体损伤性能衰减研究(Ⅰ)——分解刚度法建立(θ_m/90_n)_s开裂层板本构关系,应用数学和力学,19(3)(1998),257-265.