阐述了纸/塑/铝复合材料的结构,并对其拉伸、抗压等力学性能进行了测试,根据Matlab绘制的σ-ε曲线，讨论分析了纸/塑/铝复合结构纸板在外界压力下的具体变化过程,并采用最小二乘法得到了σ-ε曲线的经验公式及其特征系数。

The structure of paper/plastic/aluminum composite board was elaborated. The tensile and compressive mechanical properties of the composite board were tested. Specific change processes of the composite board under outside pressure were discussed according to the σ-ε curve drawn by Matlab. The σ-ε curve empirical formula and characteristic coefficients were obtained by using least square method.