A constitutive elasto-plastic model with moisture diffusion is developed for determining the cohesive strength of adhesively bonded single lap joints with identical adherend materials and thicknesses under tensile-shear loading. Static maximum shear stress failure theory is used for determining the cohesive strength. A Fickian diffusion model is utilized in order to formulate a time- and location dependent shear modulus for the adhesive. The study shows that increased plastic strain due to moisture diffusion would increase the cohesive failure load of adhesively bonded single lap joints.
Formulation of cohesive failure load for bonded single lap joints using coupled elasto-plastic stress diffusion model / Mazhari, Emad; Nassar, Sayed A.; Belingardi, Giovanni; Gerini-Romagnoli, Marco. - In: JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY. - ISSN 0169-4243. - ELETTRONICO. - (2019), pp. 1-16. [10.1080/01694243.2019.1670594]
Formulation of cohesive failure load for bonded single lap joints using coupled elasto-plastic stress diffusion model
Giovanni Belingardi;
2019
Abstract
A constitutive elasto-plastic model with moisture diffusion is developed for determining the cohesive strength of adhesively bonded single lap joints with identical adherend materials and thicknesses under tensile-shear loading. Static maximum shear stress failure theory is used for determining the cohesive strength. A Fickian diffusion model is utilized in order to formulate a time- and location dependent shear modulus for the adhesive. The study shows that increased plastic strain due to moisture diffusion would increase the cohesive failure load of adhesively bonded single lap joints.Pubblicazioni consigliate
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https://hdl.handle.net/11583/2765855
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