Ultrasonic Nondestructive Testing Analysis of 3D 5-Directional Braided Composites

Xiao Li He; Rui Wang; Chong Liu; Qian Qian Zhang

doi:10.4028/www.scientific.net/AMR.601.50

Paper Titles

Numerical Studies on Effect of Interpass Time on Distortion and Residual Stresses in Multipass Welding
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Decoration of Magnetic Nanoparticles on Functionalized Multi-Wall Carbon Nanotubes by In Situ Method
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A Delamination Factor Prediction Model for Drilling of Composite Materials
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Research on Tensile Strength in the Ultrasonic Welding Joint of T-Type Wood-Plastic Composites Components
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Ultrasonic Nondestructive Testing Analysis of 3D 5-Directional Braided Composites
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Influence of Different Auxiliary Activators Doping on Spectral Properties of Sr₃Al₂O₆: Eu²⁺ Phosphors
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Changes of Mechanical Properties of Steel 12Cr18Ni10Тi after Electrolytic-Plasma Cementation
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Modification of Structure and Properties of Steel Р6М5 at Electrolyte Plasma Treatment
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Influence of Deformation on the Phase-Structural State of Steel 30CrMnSiA
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Ultrasonic Nondestructive Testing Analysis of 3D 5-Directional Braided Composites

Abstract:

Defects might be formed within braided composites because of the special production process and would have negative effects on the mechanics performance of 3D braided composites. It is important to test and analyses defects to take preventive measures for preventing their formation. In this paper, defects of 3D braided composites were analyzed and methods of nondestructive testing were introduced. Ultrasonic nondestructive testing is one of the earliest methods of nondestructive testing used to evaluate composites. Ultrasonic nondestructive tests of 3D 5-directional braided composites were carried in this paper and the characteristics values were extracted by wavelet analysis method and defect qualitative analysis was implemented.