A hybrid glass/aluminum/titanium fiber metal laminate (FML) based on the standard GLARE concept was proposed in present paper, and its notched behavior was investigated experimentally and numerically. Experimental results revealed that a special three-stage stress-stain curve was obtained by this reinforced GLARE, which was related to the transition of load bearing mechanism. As well as, improvements of notched strength and normalized notched strength were achieved benefiting from the high strength and ductile nature of titanium, where their maximum increments obtained at D/W=0.2 were 11.88% and 15.40%, respectively. In addition, numerical results indicated that the finite element model (FEM) predicted well the notched behavior of GLARE with incorporating the thermal residual stress effect. Moreover, the comparisons of internal energy and damage dissipation energy between standard GLARE and reinforced GLARE have facilitated in the understanding of reinforced effect of titanium. It is believed that the present investigation can provide some useful information for damage tolerance design of FMLs.
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机译：本文提出了一种基于标准眩光概念的混合玻璃/铝/钛纤维金属层压板（FML），并在实验和数值上进行了缺陷的行为。实验结果表明，通过这种增强眩光获得了特殊的三阶段应力染色曲线，其与负载轴承机构的过渡有关。除此之外，从钛的高强度和延性性质中实现了缺口强度和归一化的缺口强度的改善，其中在D / W = 0.2的最大增量分别为11.88％和15.40％。此外，数值结果表明，有限元模型（FEM）预测眩光的缺口行为与夹持热残余应力效应。此外，在理解钛的增强效应的理解中，标准眩光和增强眩光之间的内部能量和损伤能量的比较。据信，目前的调查可以为FMLS的损伤耐受性设计提供一些有用的信息。
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