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对结构在考虑双非线性（弹塑性和大挠度）情况下的动态响应进行了数值分析和试验研究．建立了双非线性分析模型，编制了有关的通用有限元程序，完善和改进了鸟撞专用程序—ＢＩＮＡ（ＢｉｒｄＩｍｐａｃｔＮｏｎｌｉｎｅａｒＡｎａｌｙｓｉｓ）程序。文中考虑了三维方向的剪应力和惯性力的影响，因此不仅可以分析薄板，薄壳，也为较大动载下的厚板、厚壳的分析提供了方便．同时，使用ＳＨＰＢ（ＳｐｌｉｔＨｏｐｋｉｎｓｏｎＰｒｅｓｓｕｒｅＢａｒ）试验装置，测定了四边形固支的ＬＹ１２ＣＺ方板试件在不同点撞击载荷作用下的响应，根据实测载荷，用本文方法对试件进行了非线性数值计算，与试验结果比较表明两者吻合较好，进一步验证了本文程序的可行性和ＳＨＰＢ试验装置的可靠性．
The dynamic response of the structure considering double nonlinearity (elasto-plasticity and large deflection) is numerically analyzed and experimentally studied. The establishment of a double nonlinear analysis model, the preparation of the common finite element program, improve and improve the bird collision specific program -BINA (BirdImpactNonlinearAnalysis) program. In this paper, the effects of shear stress and inertial force in three-dimensional direction are considered. Therefore, not only the analysis of thin plates and shells, but also the analysis of thick plates and thick shells under large dynamic loads are provided. At the same time, SHPB (Split Hopkinson PressureBar) test device was used to measure the response of the tetragonal LY12CZ square specimen under different impact loads. According to the measured load, the nonlinear numerical calculation was carried out on the specimen with the experimental method The result shows that the agreement between the two is good, which further verifies the feasibility of this program and the reliability of SHPB test device.