Title
Preload loss of stainless steel bolts in aluminium plated slip resistant connections
Author
den Otter, C.
Maljaars, J.
Publication year
2020
Abstract
Bolted connections are applied in many aluminium structures. Stainless steel bolts are often preferred over carbon steel bolts in aluminium connections to prevent galvanic corrosion. However, current design standards and guidelines do not allow for using preloaded stainless steel bolts in slip resistant connections, mainly because of a lack of knowledge on the preload loss to be expected in these connections, and this limits the application field of this type of structure. This paper presents a combined empirical and analytical (i.e. mechanical) study into preload losses of stainless steel bolts in aluminium slip resistant connections caused by long-term effects (creep and relaxation), thermal expansion, and lateral contraction. It appears that stainless steel bolts can be applied in aluminium slip resistant connections, but a larger partial safety factor than standards currently prescribe is required for the slip resistance in ultimate limit state.
Subject
Aluminium Slip Resistant Connection
Bolt
Creep
Lateral Contraction
Partial Factor
Relaxation
Reliability Analysis
Stainless Steel
Viscoplasticity
To reference this document use:
http://resolver.tudelft.nl/uuid:9d7cb01d-f853-43f6-9774-b9d5ec6b0ad9
DOI
https://doi.org/10.1016/j.tws.2020.106984
TNO identifier
880115
Publisher
Elsevier Ltd
ISSN
0263-8231
Source
Thin-Walled Structures, 157 (157)
Document type
article