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Mechanics in Engineering ›› 2016, Vol. 38 ›› Issue (4): 413-417.doi: 10.6052/1000-0879-16-077

• Applied Research • Previous Articles     Next Articles

STIFFNESS OF REINFORCED SANDWICH COMPOSITE CANTILEVER STRUCTURE WITH VARIABLE CROSS-SECTION

LIU Ling, LI Huadong, MEI Zhiyuan   

  1. Naval Architecture Engineering, Naval University of Engineering, Wuhan 430033, China
  • Received:2016-03-16 Online:2016-08-15 Published:2016-08-16

Abstract:

The reinforced sandwich composite cantilever structure sees a wide application in the ship engineering. However, due to many design variables, it is diffcult to determine the bending stiffness at the design stage. Based on typical structure application background demands, a bending stiffness calculation model for the reinforced sandwich composite beam with variable cross-section is established. A model is made for stiffness tests, the result of which is compared with the calculation model. Finally, the influences of several factors on the stiffness are discussed, such as the material parameters of the main components, the hybrid fiber content of the panel, the allocation proportions of the panel and web sections, and the layer proportion of the web. The results can be used in designing reinforced sandwich composite cantilever structures.

Key words:

composite material|cantilever structure|variable cross-section|stiffness characteristic

CLC Number: 

  • TB332