Mechanical properties of thick GLARE1-9/8 laminates with unidirectional structure are investigated. Three-point bending tests are conducted to determine the elasto-plastic behavior and flexural strength of samples with different length. Effective longitudinal and interlaminar shear moduli of GLARE are measured based on various span method. Failure loads and failure mechanisms are determined within the range of the samples’ span-to-thickness ratio $L/h=\mathrm{3.5...27}$. Micro/meso-mechanical models are involved for the analysis of experimental data. It is shown, that found values of elastic moduli agree well with simple analytical models, while the non-linear deformations of GLARE under high loading levels should be described accounting for plastic effects that arise in aluminum sheets as well as in GFRP layers. Change of failure mechanisms is accurately predicted based on the developed elasto-plasticity model involving maximum stress and maximum strain criteria. Size effects for the apparent interlaminar shear strength (ISS) of GLARE laminates are explained accounting for anisotropy and inelastic deformations of GFRP layers. It is shown, that true ISS evaluated based on the proposed model is closed to those one determined by the double-notched shear test.

研究了具有单向结构的厚GLARE1-9 / 8层压板的机械性能。进行三点弯曲测试，以确定不同长度的样品的弹塑性行为和抗弯强度。基于各种跨度方法测量了GLARE的有效纵向和层间剪切模量。在样品的跨度与厚度之比的范围内确定失效载荷和失效机理$\mathrm{大号}/H=\mathrm{3.5\; ...\; 27}$。微观/介观力学模型用于分析实验数据。结果表明，发现的弹性模量值与简单的分析模型非常吻合，而在高负荷水平下应描述GLARE的非线性变形，这要考虑到铝板和GFRP层中产生的塑性效应。基于已开发的涉及最大应力和最大应变准则的弹塑性模型，可以准确预测破坏机制的变化。解释了GLARE层压板的表观层间剪切强度（ISS）的尺寸效应，说明了GFRP层的各向异性和非弹性变形。结果表明，基于所提出模型评估的真实ISS与双缺口剪切试验确定的结果相接近。