A modified cohesive zone model for fatigue delamination in adhesive joints: Numerical and experimental investigations
نویسندگان
چکیده
منابع مشابه
Fracture Analysis of Adhesive Joints Using Intrinsic Cohesive Zone Models
In this paper Cohesive Zone Model (CZM) concepts are applied in order to study mode I fracture in a pre-cracked bonded Double Cantilever Beam (DCB) specimen. A cohesive surface element is implemented in a Finite Element commercial code using intrinsic cohesive zone models: exponential, bilinear and trapezoidal traction-separation laws. The sensitivity of cohesive zone parameters in predicting t...
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0020-7683/$ see front matter 2008 Elsevier Ltd. A doi:10.1016/j.ijsolstr.2008.11.016 Abbreviations: ASTM, ASTM International; CC, co continuous cohesive zone method; CPE4I, bilinear inc elements; DACE, design and analysis of computer cantilever beam; DCZM, discrete cohesive zone metho finite element; LEFM, linear elastic fracture mech sampling; SLJ, single lap joint; TTL, trapezoidal tractio * ...
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This paper deals with the application of Cohesive Zone Model (CZM) concepts to study mode I fracture in adhesive bonded joints. In particular, an intrinsic piece-wise linear cohesive surface relation is used in order to model fracture in a pre-cracked bonded Double Cantilever Beam (DCB) specimen. Finite element implementation of the CZM is accomplished by means of the user element (UEL) feature...
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Cohesive zone models are explored in order to study cleavage fracture in adhesive bonded joints. A mode I cohesive model is defined which correlates the tensile traction and the displacement jump (crack faces opening) along the fracture process zone. In order to determine the traction-separation relation, the main fracture parameters, namely the cohesive strength and the fracture energy, as wel...
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This paper discusses the static and fatigue behavior of adhesively bonded single lap joints in SMC-SMC composites. Effects of lap length and adhesive thickness on the static and fatigue strength of SMC-SMC adhesive joints are studied. Effects of SMC surface preparation and test speed on the joint performance are evaluated. Finally, the effect of water exposure on the joint durability is also in...
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ژورنال
عنوان ژورنال: Composite Structures
سال: 2019
ISSN: 0263-8223
DOI: 10.1016/j.compstruct.2019.111114