Abstract
The problem of a cracked adhesive bonded DCB-type fracture specimen has been analyzed using a hybrid stress model finite element analysis which incorporates an advanced crack tip element. Stresses in the near and far fields have been studied as a function of adherend/adhesive modulus ratio and adhesive thickness. The results are compared to monolithic systems with regard to the stress intensity factor and the localization of the singular stress domain associated with the crack tip.
Résumé
Le problème d'une éprouvette de rupture Double Poutre Cantilever comportant une liaison par adhésif fissurée a été analysée en utilisant un modèle de contrainte hybride et une analyse par élément fini qui incorpore un élément particulier à la pointe de la fissure. Les contraintes dans le champ proche et dans le champ éloigné ont été étudiées en fonction du rapport des modules de l'adhésif et de l'adhérent, et de l'épaisseur de l'adhésif. Les résultats sont comparés à un système monolitique en ce qui regarde le facteur d'intensité des contraintes et la localisation du domaine singulier des contraintes associé à l'extrémité de la fissure.
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Wang, S.S., Mandell, J.F. & McGarry, F.J. An analysis of the crack tip stress field in DCB adhesive fracture specimens. Int J Fract 14, 39–58 (1978). https://doi.org/10.1007/BF00032383
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DOI: https://doi.org/10.1007/BF00032383