MODE CONVERSION IN COMPOSITE MATERIAL WITH MATRIX CRACKS
This paper presents a numerical study of mode conversion behavior of guided wave in glass fiber reinforced polymer with matrix cracks.For a single crack,two different factors including the guided wave mode of the excitation and the position of the crack are taken into consideration.Results show that mode conversion from symmetric mode to antisymmetric mode plays an important role when the crack locates near the surface.Aimed at evaluating micro-damage accumulation,the mode conversion behavior is quantified by defining a parameter MCI (Mode Conversion Index).The relation between MCI and the density of matrix cracks shows that the mode conversion behavior is very sensitive to the micro-damage accumulation,which has potential for composite fatigue evaluation.
Guided wave Composite material Finite element method Mode conversion behavior
Zhen-yu ZHANG Chao ZHANG Hong-li JI Jin-hao QIU Jin-ling ZHAO
State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aerona School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, 211816, China
国际会议
石家庄
英文
281-285
2019-11-01（万方平台首次上网日期，不代表论文的发表时间）