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应用Ｒａｙｌｅｉｇｈ－Ｒｉｔｚ法对含有单个椭圆形分层的复合材料对称层板在压剪载荷联合作用下的脱层屈曲问题进行了分析计算。给出相应于不同的椭圆长短半轴之比ａ／ｂ值下及不同椭回主轴的偏角时，脱层屈曲的临界应变值。此计算考虑了层板的拉伸剪切藕合刚度影响及子层本身弯曲－扭转耦合刚度，和拉伸－弯曲耦合刚度的影响，给出有工程参考价值的计算结果。
The Rayleigh-Ritz method was used to analyze the delamination buckling problem of composite symmetrical plates with a single oval-shaped layered composite subjected to the compressive-shear load. The critical strain values of delamination buckling are given for a / b values corresponding to different half-length of the ellipse and declination angles of the major ellipses. The calculation considers the influence of the tensile shear coupling stiffness of the laminates and the influence of the bending-torsional coupling stiffness and the tensile-flexural coupling stiffness of the sublayer itself, and gives the calculation results of engineering reference value.