Bearing stresses in bolted composite joints with different contact interactions

In a bolted joint, it has been shown to be better to model the real contact between bolt and hole than to fix the boundary of the hole edge, a practice used by most previous researchers. Master-slave interaction was implemented in ABAQUS to simulate full contact conditions. Stress distributions were...

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Main Author: Ahmad, Hilton
Format: Article
Language:English
Published: Engg Journals Publications 2016
Subjects:
Online Access:http://eprints.uthm.edu.my/3834/1/AJ%202016%20%2810%29.pdf
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author Ahmad, Hilton
author_facet Ahmad, Hilton
author_sort Ahmad, Hilton
collection UTHM
description In a bolted joint, it has been shown to be better to model the real contact between bolt and hole than to fix the boundary of the hole edge, a practice used by most previous researchers. Master-slave interaction was implemented in ABAQUS to simulate full contact conditions. Stress distributions were plotted along net-tension plane and hole boundary. Due to geometric non-linearity, the clearance and friction coefficients used substantially effected the maximum stress on hole boundary as shown using the benchmarking work of Eriksson. A physically-based constitutive model used is based on state-of-the art fracture mechanics was used for bolted joint strength prediction. Idealized models from Hollmann were remodelled both by fixing the hole boundary (following the original author) and by implementing full contact condition using CZM and XFEM. The physically-based constitutive law used independently measured of unnotched strength and fracture energy parameter for crack opening, which is calibrated from available literatures (known as apparent fracture energy). Good correlation with experimental results was found when using the real contact condition.
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spelling uthm.eprints-38342021-11-22T04:13:07Z http://eprints.uthm.edu.my/3834/ Bearing stresses in bolted composite joints with different contact interactions Ahmad, Hilton TA401-492 Materials of engineering and construction. Mechanics of materials In a bolted joint, it has been shown to be better to model the real contact between bolt and hole than to fix the boundary of the hole edge, a practice used by most previous researchers. Master-slave interaction was implemented in ABAQUS to simulate full contact conditions. Stress distributions were plotted along net-tension plane and hole boundary. Due to geometric non-linearity, the clearance and friction coefficients used substantially effected the maximum stress on hole boundary as shown using the benchmarking work of Eriksson. A physically-based constitutive model used is based on state-of-the art fracture mechanics was used for bolted joint strength prediction. Idealized models from Hollmann were remodelled both by fixing the hole boundary (following the original author) and by implementing full contact condition using CZM and XFEM. The physically-based constitutive law used independently measured of unnotched strength and fracture energy parameter for crack opening, which is calibrated from available literatures (known as apparent fracture energy). Good correlation with experimental results was found when using the real contact condition. Engg Journals Publications 2016 Article PeerReviewed text en http://eprints.uthm.edu.my/3834/1/AJ%202016%20%2810%29.pdf Ahmad, Hilton (2016) Bearing stresses in bolted composite joints with different contact interactions. International Journal of Engineering and Technology, 8 (2). pp. 988-994. ISSN 0975-4024
spellingShingle TA401-492 Materials of engineering and construction. Mechanics of materials
Ahmad, Hilton
Bearing stresses in bolted composite joints with different contact interactions
title Bearing stresses in bolted composite joints with different contact interactions
title_full Bearing stresses in bolted composite joints with different contact interactions
title_fullStr Bearing stresses in bolted composite joints with different contact interactions
title_full_unstemmed Bearing stresses in bolted composite joints with different contact interactions
title_short Bearing stresses in bolted composite joints with different contact interactions
title_sort bearing stresses in bolted composite joints with different contact interactions
topic TA401-492 Materials of engineering and construction. Mechanics of materials
url http://eprints.uthm.edu.my/3834/1/AJ%202016%20%2810%29.pdf
work_keys_str_mv AT ahmadhilton bearingstressesinboltedcompositejointswithdifferentcontactinteractions