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Determination of the shear traction-separation law of adhesive layers using the end-notched flexure specimen
تعیین قانون جداسازی کشش و برشی لایه های چسبنده با استفاده از نمونه خمشی انتهایی-2020 Cohesive zone modelling is increasingly applied to predict the strength of structural adhesive
joints. A method is here proposed to determine the bondline shear traction-separation law needed
for cohesive zone models. The method combines an effective crack length approach derived from
a beam model and an existing J-integral analysis of the end-notched flexure specimen. The resulting
work done by the tractions versus separation curves can be easily processed with direct or
mixed direct-inverse approaches. Application to some published experimental results demonstrates
the potential of the method while highlighting the importance of adherend material and
specimen geometry selection. Keywords: Adhesive joints | Toughness testing | End-Notched Flexure | Beam model | Cohesive zone modelling |
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