PSI - Issue 57

Cristian Bagni et al. / Procedia Structural Integrity 57 (2024) 598–610 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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Fig. 5. Variation ofthe maximum peel stress with the size of thesolid elements used to model the adhesive: (a) lap shear and (b) coach peel.

Fig. 6. Example of fatigue analysis workflow using nCode DesignLife.

3. Fatigue parameters derivation through physical testing The performance of adhesive joints is strongly influenced by several factors, such as material type and thickness of the adherends, type of adhesive and surface preparation of the adherends, presence of adhesive spew and its amount and shape, etc. Therefore, for more accurate fatigue analyses, it is important to derive bespoke fatigue parameters for the adhesive joints by testing specimens that are representative of the production parts and processes. In this Section, a process to derive bespoke fatigue parameters of the adhesive joints through physical testing is proposed.