Research on coupled mechanical properties of CFRP bolted connection force and temperature

doi:10.19936/j.cnki.2096-8000.20230628.017

Abstract

Abstract: In this paper, tensile tests of carbon fiber composite material (CFRP) bolted specimens with different connection modes (single screw double shear connection, double screw double shear connection), different tightening torques (2 N·m, 4 N·m, 6 N·m) and different temperature environments (normal temperature and low temperature) were carried out under static load. The effects of force, temperature and connection mode on the static tensile properties of bolted connected components were investigated. The results show that under the same experimental conditions, the tensile strength of the specimens with double screw connection is significantly improved. Properly increasing tightening torque can effectively improve bolt connection strength; the tensile strength of specimens was slightly improved under low temperature.

Key words: CFRP, bolt connection, tightening torques, low-temperature environments, tensile strength

CLC Number:

TB332

WANG Weilong. Research on coupled mechanical properties of CFRP bolted connection force and temperature[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(6): 120-127.

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