Fatigue of bonded steel interfaces under cyclic shear loading and static normal stress

Hybrid joints that combine mechanical fastening and bonding provide potential joining alternatives for high strength steel structures. An experimental and analytical research program has been initiated to assess the static and cyclic Mode II shear strength of epoxy bonded steel interfaces subjected...

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Bibliographic Details
Published inEngineering fracture mechanics Vol. 78; no. 8; pp. 1644 - 1656
Main Authors Hurme, S., Oinonen, A., Marquis, G.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.05.2011
Subjects
Bonded joint
Bonding
Fatigue (materials)
Fracture mechanics
Fretting fatigue
High strength steel
Hybrid joint
Interface fracture
Mathematical analysis
Shear strength
Shear stress
Stresses
Structural steels
Hybrid joint
Bonded joint
Fretting fatigue
High strength steel
Interface fracture
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Summary:Hybrid joints that combine mechanical fastening and bonding provide potential joining alternatives for high strength steel structures. An experimental and analytical research program has been initiated to assess the static and cyclic Mode II shear strength of epoxy bonded steel interfaces subjected to static normal (Mode I) pre-stress. During cyclic loading, shear stress vs. interface displacement could be divided into elastic and inelastic regions with a power law equation describing the inelastic curve. Hysteresis loop shape varied with normal stress, shear stress and accumulated fatigue cycles. A shear stress amplitude threshold equal to about 50% of the fracture shear stress was observed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0013-7944
1873-7315
DOI:10.1016/j.engfracmech.2011.02.006