THE ROLE OF MATERIAL ORTHOTROPY IN FRACTURE SPECIMENS FOR COMPOSITES
THE ROLE OF MATERIAL ORTHOTROPY IN FRACTURE SPECIMENS FOR COMPOSITES
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DOI：
10.1016/0020-7683(92)90138-j
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发表时间：
1992-01-01
影响因子：
3.6
通讯作者：
FAN, B
中科院分区：
文献类型：
--
作者：
BAO, G;HO, S;FAN, B
以正交各向异性重标技术为指导，结合已有的分析结果，对常用的单向复合材料断裂试样进行了系统的分析，研究了材料正交各向异性对单向复合材料断裂行为的影响。包括多种类型的缺口棒、分层梁和混合三明治。所有的数值校准与拟合公式在相关的参数制度。因此，材料正交各向异性对单向复合材料断裂行为的影响是量化的，这显着降低了实验研究和理论建模的复杂性。的正交各向异性重新标度的概念，与一些扩展的摘要，也包括在内。
Guided by the orthotropy rescaling technique and other available analytic results, a systematic analysis is conducted for commonly used fracture specimens to investigate the role of material orthotropy in fracture behavior of unidirectional composites. Included are notched bars, delamination beams and hybrid sandwiches, of many varieties. All numerical calibrations are presented with fitting formulae in the relevant parameter regimes. The effect of material orthotropy on fracture behavior of unidirectional composites is thus quantified, which significantly reduces the complexities involved in both experimental investigation and theoretical modelling. A summary of the orthotropy rescaling concepts, with some extensions, is also included.