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本文把适用于各向同性材料的能量释放率和能量线积分理论,推广到复合材料中来,通过精细加工试件和精确的测量,得到了玻璃纤维增强聚脂层压板的稳定的G_c,G_(ic),Jc和J_(ic),它们吻合得很好,指出了用J_(ic)作为材料的断裂韧度值较为合适。
In this paper, the theory of energy release rate and energy ray integral for isotropic materials is generalized into composite materials. The precision G_c and G_ (ic), Jc and J ic (ic), which are in good agreement, pointed out the use of J ic (ic) as the material fracture toughness value is more appropriate.