三维全五向编织耳片接头力学性能试验研究

doi:10.7527/S1000-6893.2015.0265

Abstract

Abstract:

The mechanical properties of the 3D full 5-directional braided composites lugs on axial tension are studied based on experiments. The 3D braided composites lugs used for the study are made of T700-12K carbon fiber braided by 4-step braiding technique and solidified with TDE-85 epoxy by resin transfer molding (RTM) technique. The mechanical properties of the experimental samples which consist of two geometries and two methods for the holes (drilled and braided separately) are investigated. The results of these experiments show that the strength of the braided hole lug is six times that of the drilled one lug for the same size and same braiding technique. For the same hole diameter and thickness lug, with the increase of the width of the lug, the final failure load increases significantly, but the initial failure load improves a little.

Key words: D braiding, composite, lug, experimental research, mechanical properties

CLC Number:

LIU Zhenguo, LIN Qiang, YA Jixuan, HU Long, WANG Yibo. Experimental research on mechanical properties of 3D full 5-direactional braided composites lugs[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(7): 2225-2233.

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Experimental research on mechanical properties of 3D full 5-direactional braided composites lugs

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