SPS夹层结构因其比强度高、比刚度好、减振降噪、可设计性强等优点，在船舶领域得到广泛关注。本文采用非线性Ansys有限元方法，通过失效判据和刚度退化准则的二次开发，对SPS复合加筋板结构进行后屈曲渐进失效过程研究，重点分析了结构的动态后屈曲失效模式、损伤扩展路径和极限强度，并开展了SPS复合结构动态后屈曲影响因素研究。通过与钢制结构的后屈曲渐进失效过程对比，进一步验证了SPS复合结构在稳定性方面的优势。研究结果为提高SPS复合结构在船舶应用中的安全性和经济性提供依据。
Due to its advantages of high specific strength, good specific rigidity, vibration and noise reduction, and strong designability, the SPS sandwich structure has received extensive attention in the field of ships. In this paper, the nonlinear Ansys finite element method is used to study the post-buckling progressive failure process of the SPS composite stiffened plate structure through the secondary development of the failure criterion and stiffness degradation criterion. The dynamic post-buckling failure mode and damage expansion of the structure are analyzed Path and ultimate strength, and research on the influencing factors of dynamic post-buckling of SPS composite structure. Compared with the post-buckling progressive failure process of the steel structure, the stability advantage of the SPS composite structure is further verified. The research results provide a basis for improving the safety and economy of SPS composite structures in marine applications.
2021,43(10): 16-19 收稿日期：2020-05-16
DOI：10.3404/j.issn.1672-7649.2021.10.004
分类号：O347.3
作者简介：赵元帅(1993-),男,硕士研究生,研究方向为船舶与海洋结构物力学性能
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