Abstract
Composite structural components are increasingly used in the aerospace and automobile industry. These components will have joints and assemblies of different parts required to form the final product. Adhesive joints propose merits over conventional method like the riveting or fastening. Though adhesive joint has advantages over other joining techniques, they cannot be dismantled once manufactured. Many factors affect the strength of these joints such as type of joint, geometric properties, material properties, surface preparation methods, and environmental conditions like humidity and temperature. The integrity and strength of bonds need to be evaluated at regular intervals without dismantling for inspection. Hence, the development of an NDE tool for this purpose is inevitable. In this study, digital radiography and infrared thermography are used for obtaining the NDE parameters related to the surface roughness that affects the bond strength. The single lap joint coupons were prepared for this study with varied surface roughness. Intensity variation in images of X-ray and the surface temperature profile with respect to the roughness of the adherend was measured. Details of the experimental investigations and the results obtained are presented in this paper.
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Mane, L.S., Bhat, M.R. (2021). Study of Effect of Surface Roughness in Single Lap Joint (SLJ) of Carbon-Fiber-Reinforced-Polymer (CFRP) Composites Using Radiography and Thermography. In: Mukhopadhyay, C.K., Mulaveesala, R. (eds) Advances in Non-destructive Evaluation . Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-0186-6_1
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DOI: https://doi.org/10.1007/978-981-16-0186-6_1
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