The effects of surface roughness and bond thickness on the fatigue life of adhesively bonded tubular single lap joints

2000 ◽  
Vol 14 (8) ◽  
pp. 1085-1102 ◽  
Author(s):  
Jae Wook Kwon ◽  
Dai Gil Lee
Keyword(s):  
Surface Roughness ◽  
Fatigue Life ◽  
Lap Joints ◽  
Adhesively Bonded ◽  
Single Lap Joints

Effect of interface non-flatness on the fatigue behavior of adhesively bonded single lap joints

2017 ◽  
Vol 233 (7) ◽  
pp. 1277-1286 ◽  
Author(s):  
SMJ Razavi ◽  
MR Ayatollahi ◽  
M Samari ◽  
LFM da Silva
Keyword(s):  
Fatigue Life ◽  
Bearing Capacity ◽  
Fatigue Behavior ◽  
Fatigue Loading ◽  
Lap Joints ◽  
Lap Joint ◽  
Adhesively Bonded ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
Single Lap Joints

This paper addresses numerical and experimental examination of the role of zigzag interface shapes on the load bearing capacity and fatigue life of adhesively bonded single lap joints. Aluminum adherends with non-flat zigzag interfaces were tested under both quasi-static and fatigue loading conditions. The quasi-static test results revealed that the non-flat adhesive joints have higher load bearing capacity compared to the conventional flat single lap joints. Comparative fatigue tests with different loading levels revealed that the non-flat zigzag single lap joint had considerably higher fatigue life than the conventional lap joint.

Influence of Roughness and Curing Temperature on the Strength of Aluminum Adhesively Bonded Joints

2021 ◽  
Vol 883 ◽  
pp. 227-233
Author(s):  
Giovanna Rotella ◽  
Maria Rosaria Saffioti ◽  
Michela Sanguedolce ◽  
Luigino Filice
Keyword(s):  
Surface Roughness ◽  
Lap Joints ◽  
Curing Temperature ◽  
Bonded Joints ◽  
Adhesively Bonded ◽  
Adhesively Bonded Joints ◽  
Curing Conditions ◽  
Single Lap Joints ◽  
Roughened Surface ◽  
Indentation Tests

This work presents a comprehensive experimental study on the effect of surface roughness and adhesive curing temperature on adhesively bonded joints of AA6082. The modification of surface morphology has been assessed by roughness measurements (contact and non-contact profilometry). In addition, mechanical changes in the resin properties due to different curing time have been probed through a series of instrumented indentation tests. Thus, adhesive bonded single lap joints were fabricated and tested to assess the changes in shear strength at varying surface roughness and curing conditions. The obtained results indicate the ability of the roughened surface to improve the joint strength together with the adequate combination of curing temperature and time among those suggested by the manufacturer.

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