DOI | Resolve DOI: https://doi.org/10.5589/q05-011 |
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Author | Search for: Li, Gang1; Search for: Backman, David1; Search for: Bellinger, Nicholas C.1; Search for: Shi, Guoqin1 |
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Affiliation | - National Research Council of Canada. NRC Institute for Aerospace Research
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Format | Text, Article |
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Subject | fatigue of materials; numerical analysis; stress analysis; torque; aluminum; coated materials; joints (structural components); machine design; mathematical models; multiple-load steps; shear strain; stress variations; finite element (FE) models; interference fit fastener; photoelastic coating; aluminum; sheet metal |
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Abstract | This paper presents the results of an investigation into the three-dimensional stress field around an interference fit fastener hole. Understanding the stress variations in the vicinity of the hole during the entire loading sequence from the fastener set-up process to the tensile-loading stage is extremely useful for the design and builing of a high-fatigue performance joint. Two specimens were tested, each specimen consisted of a single aluminum sheet and an interference fit fastener. A photoelastic coating was bonded to the outer surface (fastener head side) on one specimen and the inner surface (nut side) of the other. An interference fit fastener was installed in a single sheet and then photoelastic analysis was used to measure the strains under different tensile loads. Four different three-dimensional finite element (FE) models of the sheet and fastener/nut structure with and without a coating were generated. A numerical technique is proposed to analyze the fastener-clamping torque, which was employed in the contact numerical simulations. Multiple-load steps in the FE models were used to simulate the entire joining and then tensile-loading stages. A good correlation was achieved between the experimental results and the finite element predictions for the maximum shear strain. The full-field contours of the maximum principal stress under different clamping values and tensile loads were also studied. |
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Publication date | 2005-09-01 |
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Publisher | Canadian Science Publishing |
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Access condition | - available
- unclassified
- unlimited
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In | |
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Language | English |
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Peer reviewed | Yes |
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NRC number | smpl-2005-0082 |
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NPARC number | 8931556 |
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Export citation | Export as RIS |
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Report a correction | Report a correction (opens in a new tab) |
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Record identifier | a66566c4-be13-49ba-a809-86b1a33805b6 |
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Record created | 2009-04-23 |
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Record modified | 2023-06-22 |
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