Study on pin load distribution of multi-countersunk bolt composite laminate joints

Abstract

Abstract:

A 3D finite element model of multi-countersunk bolt joint is established with ABAQUS. The tensile performance of multi-bolt joint of composite laminate with metal plate is analyzed, the pin load distributions are calculated,and the effect of factors such as pin clearance, bolt torsion moment, height ratio on the load distributions are analyzed. Results show that countersunk bolts can improve load distributions slightly compared with protrudinghead bolt for composite laminate joints. The pin clearance and bolt stiffness have great effect on load distributions, while the bolt torsion moment and metal plate stiffness have slightly effect, and the effect of friction and height ratio can be ignored.

Key words: composite laminate, joint, countersunk bolt, load distribution, tension

CLC Number:

V214.8

SUN Yongbo, DONG Tingjian, LIU Xin, PAN Yadong. Study on pin load distribution of multi-countersunk bolt composite laminate joints[J]. .

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