Bolt fatigue in CFRP joints

被引:14
作者
Kapidzic, Zlatan [1 ,2 ]
Granados, Diego Leonardo avila [3 ,4 ]
Arias, Javier Andres Moreno [4 ]
Aguilera, Manuel Jesus Quiroga [4 ]
Rodriguez, Juan Pablo Casas [5 ]
Callejas, Juan Carlos Garcia [5 ]
机构
[1] Saab AB, SE-58188 Linkoping, Sweden
[2] Linkoping Univ, Div Solid Mech, SE-58183 Linkoping, Sweden
[3] Fdn Univ Libertadores, Engn Dept, Cra 16 63 A 68, Bogota, Colombia
[4] Corp Ind Aeronaut Colombiana, Cll 26 103-08 Ent 1 Int 2, Bogota, Colombia
[5] Univ Andes, Mechanicaltemp Engn Dept, Cra 1a Este 19 A 40, Bogota, Colombia
关键词
Bolt fatigue; Liquid shim; CFRP joint; Friction; MECHANICALLY FASTENED JOINTS; SPECTRUM FATIGUE; COMPOSITE JOINTS; RESISTANCE; STRENGTH;
D O I
10.1016/j.ijfatigue.2022.107138
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Bending of titanium bolts in in-plane loaded composite joints is potentially fatigue critical. We propose an analytical model for calculation of bending stress in protruding and countersunk-head bolts in composite joints. The model allows for presence of liquid shim and considers the load transfer by friction. We perform experiments on six types of joints, including variants with and without liquid shim or frictionless tape between the plates, and with different levels of bolt pretension. Using the bending stress, we fit an S-N equation to the test results and compare predictions of variable-amplitude fatigue life to experimental results from the literature.
引用
收藏
页数:15
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