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Influence of structure and of tensile modulus of adhesive joint on mechanical strength of metal plates bonded by various epoxy resins
Author(s) -
Gilibert Yvon,
Klein L. L.
Publication year - 1989
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19890230132
Subject(s) - materials science , adhesive , composite material , lap joint , epoxy , joint (building) , shear (geology) , ultimate tensile strength , shear modulus , shear strength (soil) , modulus , structural engineering , layer (electronics) , environmental science , soil science , engineering , soil water
A double‐lap, adhesive bonded joint, has been optimized with a fixed thickness of the core, in order to maximize the breaking force, and to obtain reproducible results. The shear profile, longitudinal, corresponds in the central region of the overlapping to classical theory, but is represented empirically, near the extremities, by the transversal shear in outer adherends. This furnishes an abscissa of the shear maximum in the joint, that compares with the location expected in a previous study and indicates also the critical level of shear, at the threshold of microcrack initiation, that compares with the breaking strength of the solid adhesive, in a similar manner for three different adhesives for which we observed a certain length of sheared joint with a cohesive fracture.