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Assessments for impact of adhesive properties: Modeling strength of metallic single lap joints
Xu W(许巍); Wei YG(魏悦广); Xu, W (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Source PublicationJOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
2013
Volume27Issue:1Pages:9-29
ISSN0169-4243
AbstractAdhesively bonded joints are widely used in a variety of industrial and engineering activities. Their overall strength is dependent on the properties of the adhesives. In the present research, assessments of adhesive properties were performed systematically through defining both strength mixity and energy rate mixity and using them to characterize the overall strength of metallic single lap joints. By means of the cohesive zone model, the adhesive strength mixity was defined as the ratio of the shear and tensile separation strength, and the energy rate mixity was defined as the ratio of the area below the shear cohesive curve and the area below the tensile cohesive curve. For each specified group of mixity parameters, corresponding to the properties of a specified adhesive, the overall strengths and the critical displacements of bonded joints were characterized. A series of strength and energy rate mixities were taken into account in the present calculations. A comparison of the present calculations with some existing experiments was carried out for both brittle and ductile adhesives. Finally, in the calculations presented here, damage initiation and evolution of the adhesive layer were also undertaken. The results showed that the overall strength of the joints was significantly depended on the adhesive properties, which were characterized by the strength and energy rate mixities of the adhesive. Furthermore, the shear adhesive stress components played a dominate role in both the damage initiation and evolution in the adhesives, which were also affected by the overlap length of the joints.
KeywordFinite Element Analysis Mixed-mode Cohesive Zone Model Strength Mixity Energy Rate Mixity Adhesively Bonded Joint
Subject Area固体力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000315187700003
Funding OrganizationNational Natural Science Foundation of China [11021262, 10932011, 90816004]; MOST of China [2012CB937500]
DepartmentLNM新型材料及结构的多尺度力学
ClassificationQ3
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47121
Collection非线性力学国家重点实验室
Corresponding AuthorXu, W (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Xu W,Wei YG,Xu, W . Assessments for impact of adhesive properties: Modeling strength of metallic single lap joints[J]. JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY,2013,27(1):9-29.
APA Xu W,Wei YG,&Xu, W .(2013).Assessments for impact of adhesive properties: Modeling strength of metallic single lap joints.JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY,27(1),9-29.
MLA Xu W,et al."Assessments for impact of adhesive properties: Modeling strength of metallic single lap joints".JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY 27.1(2013):9-29.
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