Numerical simulation and experimental study of stability of marine sandwich structures in mast

作者：Yang, Nana^*; Wang, Yaohui; Wang, Wei; Yao, Xiongliang

来源：Journal of Huazhong University of Science and Technology (Natural Science Edition), 2014, 42(6): 63-67.

DOI：10.13245/j.hust.140613

• Engineering criterion
• Experimental study
• Geometric non-linearity
• Laminate structures
• Marine environment
• Material failures
• Progressive failure analysis
• Ultimate strength

The ultimate capacity and failure mode of the sandwich structures under axial load in marine environment was explored, and the Tsai-Wu criterion was adopted to identify the material failure of laminate structures. Both the materials nonlinearity and geometric nonlinearity were considered in the mechanical model. The study results show that the failure modes of sandwich structures under axial load are overall instability and local delaminating instability;whether considering material failure have little effect on results, thus the numerical simulation may ignore the material failure in engineering;the proposed numerical method provides theoritical support and engineering criteria to the application in marine structures.

• 出版日期2014
• 单位哈尔滨工程大学