Numerical analysis and optimization of the residual stresses distribution induced by cold expansion technique
This paper presents a numerical investigation about the influence of mandrel shape on residual stresses induced by the cold expansion procedure. Thus, ball and tapered pin are used for cold expanding the plate. As, the entrance face presents the lowest residual stresses throughout the hole thickness...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2018-10-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero46/numero_46_art_23.pdf |
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| _version_ | 1850056379961704448 |
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| author | Abdelghani Baltach Abdelkader Djebli Mostefa Bendouba El Hadj Besseghier Abdelkrim Aid |
| author_facet | Abdelghani Baltach Abdelkader Djebli Mostefa Bendouba El Hadj Besseghier Abdelkrim Aid |
| author_sort | Abdelghani Baltach |
| collection | DOAJ |
| description | This paper presents a numerical investigation about the influence of mandrel shape on residual stresses induced by the cold expansion procedure. Thus, ball and tapered pin are used for cold expanding the plate. As, the entrance face presents the lowest residual stresses throughout the hole thickness, we propose to solve this problem by varying the mandrel taper degree, instead of applying a double expansion. The obtained results show that the tapered pin is more suitable for the cold expansion. More, low taper increases the residual stresses at the entrance, reaching the values generated at the exit face. |
| format | Article |
| id | doaj-art-c793e8fee7054131b2dfef24175fba2b |
| institution | DOAJ |
| issn | 1971-8993 |
| language | English |
| publishDate | 2018-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-c793e8fee7054131b2dfef24175fba2b2025-08-20T02:51:42ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932018-10-01124625226510.3221/IGF-ESIS.46.2310.3221/IGF-ESIS.46.23Numerical analysis and optimization of the residual stresses distribution induced by cold expansion techniqueAbdelghani BaltachAbdelkader DjebliMostefa BendoubaEl Hadj BesseghierAbdelkrim AidThis paper presents a numerical investigation about the influence of mandrel shape on residual stresses induced by the cold expansion procedure. Thus, ball and tapered pin are used for cold expanding the plate. As, the entrance face presents the lowest residual stresses throughout the hole thickness, we propose to solve this problem by varying the mandrel taper degree, instead of applying a double expansion. The obtained results show that the tapered pin is more suitable for the cold expansion. More, low taper increases the residual stresses at the entrance, reaching the values generated at the exit face.http://www.gruppofrattura.it/pdf/rivista/numero46/numero_46_art_23.pdfCold expansion Fastener hole Residual stress FEM method Taper degree. |
| spellingShingle | Abdelghani Baltach Abdelkader Djebli Mostefa Bendouba El Hadj Besseghier Abdelkrim Aid Numerical analysis and optimization of the residual stresses distribution induced by cold expansion technique Fracture and Structural Integrity Cold expansion Fastener hole Residual stress FEM method Taper degree. |
| title | Numerical analysis and optimization of the residual stresses distribution induced by cold expansion technique |
| title_full | Numerical analysis and optimization of the residual stresses distribution induced by cold expansion technique |
| title_fullStr | Numerical analysis and optimization of the residual stresses distribution induced by cold expansion technique |
| title_full_unstemmed | Numerical analysis and optimization of the residual stresses distribution induced by cold expansion technique |
| title_short | Numerical analysis and optimization of the residual stresses distribution induced by cold expansion technique |
| title_sort | numerical analysis and optimization of the residual stresses distribution induced by cold expansion technique |
| topic | Cold expansion Fastener hole Residual stress FEM method Taper degree. |
| url | http://www.gruppofrattura.it/pdf/rivista/numero46/numero_46_art_23.pdf |
| work_keys_str_mv | AT abdelghanibaltach numericalanalysisandoptimizationoftheresidualstressesdistributioninducedbycoldexpansiontechnique AT abdelkaderdjebli numericalanalysisandoptimizationoftheresidualstressesdistributioninducedbycoldexpansiontechnique AT mostefabendouba numericalanalysisandoptimizationoftheresidualstressesdistributioninducedbycoldexpansiontechnique AT elhadjbesseghier numericalanalysisandoptimizationoftheresidualstressesdistributioninducedbycoldexpansiontechnique AT abdelkrimaid numericalanalysisandoptimizationoftheresidualstressesdistributioninducedbycoldexpansiontechnique |