Fracture mechanism on Al-Li alloy T-joint welded by dual laser-beam bilateral synchronous welding
Dual laser-beam bilateral synchronous welding technique is considered to replace riveting in terms of skin–stringer joints. The 2.0-mm thick Al-Li alloy T-joint, which is welded by dual laser-beam bilateral synchronous welding between 2099-T83 stringer and 2060-T8 skin, is investigated in the curren...
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| Veröffentlicht in: | Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture Journal of engineering manufacture, 2019-08, Vol.233 (10), p.2074-2088 |
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| container_title | Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture |
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| creator | Zhan, Xiaohong Xia, Ling Wu, Youfa Yu, Haisong Feng, Xiaosong Xia, Peiyun |
| description | Dual laser-beam bilateral synchronous welding technique is considered to replace riveting in terms of skin–stringer joints. The 2.0-mm thick Al-Li alloy T-joint, which is welded by dual laser-beam bilateral synchronous welding between 2099-T83 stringer and 2060-T8 skin, is investigated in the current study. Under the tailored process conditions, the examinations and analyses of microstructures, microhardness distribution, hoop tensile mechanical properties, and fractographies of the T-joint are conducted. Experimental results show that the maximum tensile strength of the weld seam is up to 85% of the tensile strength of the skin material. In order to explore the special fracture characteristics of dual laser-beam bilateral synchronous welding joints after tensile test, a three-dimensional finite element model is established and the residual stress of the weldment is analyzed. Considering the scanning electron microscopy results and simulation results comprehensively, stress concentration is the main reason for the weldment failure in tensile test. |
| doi_str_mv | 10.1177/0954405418815361 |
| format | Article |
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The 2.0-mm thick Al-Li alloy T-joint, which is welded by dual laser-beam bilateral synchronous welding between 2099-T83 stringer and 2060-T8 skin, is investigated in the current study. Under the tailored process conditions, the examinations and analyses of microstructures, microhardness distribution, hoop tensile mechanical properties, and fractographies of the T-joint are conducted. Experimental results show that the maximum tensile strength of the weld seam is up to 85% of the tensile strength of the skin material. In order to explore the special fracture characteristics of dual laser-beam bilateral synchronous welding joints after tensile test, a three-dimensional finite element model is established and the residual stress of the weldment is analyzed. Considering the scanning electron microscopy results and simulation results comprehensively, stress concentration is the main reason for the weldment failure in tensile test.</description><identifier>ISSN: 0954-4054</identifier><identifier>EISSN: 2041-2975</identifier><identifier>DOI: 10.1177/0954405418815361</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Aluminum base alloys ; Aluminum-lithium alloys ; Computer simulation ; Finite element method ; Fracture mechanics ; Laser beam welding ; Lasers ; Mechanical properties ; Microhardness ; Residual stress ; Riveting ; Scanning electron microscopy ; Stress concentration ; Stringers ; Tensile strength ; Tensile tests ; Three dimensional models ; Welded joints</subject><ispartof>Proceedings of the Institution of Mechanical Engineers. 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Part B, Journal of engineering manufacture</title><description>Dual laser-beam bilateral synchronous welding technique is considered to replace riveting in terms of skin–stringer joints. The 2.0-mm thick Al-Li alloy T-joint, which is welded by dual laser-beam bilateral synchronous welding between 2099-T83 stringer and 2060-T8 skin, is investigated in the current study. Under the tailored process conditions, the examinations and analyses of microstructures, microhardness distribution, hoop tensile mechanical properties, and fractographies of the T-joint are conducted. Experimental results show that the maximum tensile strength of the weld seam is up to 85% of the tensile strength of the skin material. In order to explore the special fracture characteristics of dual laser-beam bilateral synchronous welding joints after tensile test, a three-dimensional finite element model is established and the residual stress of the weldment is analyzed. Considering the scanning electron microscopy results and simulation results comprehensively, stress concentration is the main reason for the weldment failure in tensile test.</description><subject>Aluminum base alloys</subject><subject>Aluminum-lithium alloys</subject><subject>Computer simulation</subject><subject>Finite element method</subject><subject>Fracture mechanics</subject><subject>Laser beam welding</subject><subject>Lasers</subject><subject>Mechanical properties</subject><subject>Microhardness</subject><subject>Residual stress</subject><subject>Riveting</subject><subject>Scanning electron microscopy</subject><subject>Stress concentration</subject><subject>Stringers</subject><subject>Tensile strength</subject><subject>Tensile tests</subject><subject>Three dimensional models</subject><subject>Welded joints</subject><issn>0954-4054</issn><issn>2041-2975</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kMFLwzAUxoMoOKd3jwHP0SRNmuY4hnPCwMs8l5cm3TrSZiYt0v_ezgmC4Ls8eN_ve-_xIXTP6CNjSj1RLYWgUrCiYDLL2QWacSoY4VrJSzQ7yeSkX6OblA50KpVlMwSrCFU_RIdbV-2ha1KLQ4cXnmwaDN6HEW_JITRdjz-dt85iM2I7gMcekovEOGixaTz0Lk7DNHbVPoYuDOmbb7rdLbqqwSd399Pn6H31vF2uyebt5XW52JAqo7on0hmlOXVG0iLTtJ6-q4WqDdVMADdQ5VQWNq9NLnRuQWXU1spxBVRYy7TL5ujhvPcYw8fgUl8ewhC76WTJueS5zKXUE0XPVBVDStHV5TE2LcSxZLQ8BVn-DXKykLMlwc79Lv2X_wLb7nJa</recordid><startdate>201908</startdate><enddate>201908</enddate><creator>Zhan, Xiaohong</creator><creator>Xia, Ling</creator><creator>Wu, Youfa</creator><creator>Yu, Haisong</creator><creator>Feng, Xiaosong</creator><creator>Xia, Peiyun</creator><general>SAGE Publications</general><general>SAGE PUBLICATIONS, INC</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><orcidid>https://orcid.org/0000-0003-3146-6092</orcidid></search><sort><creationdate>201908</creationdate><title>Fracture mechanism on Al-Li alloy T-joint welded by dual laser-beam bilateral synchronous welding</title><author>Zhan, Xiaohong ; Xia, Ling ; Wu, Youfa ; Yu, Haisong ; Feng, Xiaosong ; Xia, Peiyun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c309t-5eb7920eb508390f733f47fb0914a2bac6058d6fb6496da730df7e27a04dd19e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Aluminum base alloys</topic><topic>Aluminum-lithium alloys</topic><topic>Computer simulation</topic><topic>Finite element method</topic><topic>Fracture mechanics</topic><topic>Laser beam welding</topic><topic>Lasers</topic><topic>Mechanical properties</topic><topic>Microhardness</topic><topic>Residual stress</topic><topic>Riveting</topic><topic>Scanning electron microscopy</topic><topic>Stress concentration</topic><topic>Stringers</topic><topic>Tensile strength</topic><topic>Tensile tests</topic><topic>Three dimensional models</topic><topic>Welded joints</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhan, Xiaohong</creatorcontrib><creatorcontrib>Xia, Ling</creatorcontrib><creatorcontrib>Wu, Youfa</creatorcontrib><creatorcontrib>Yu, Haisong</creatorcontrib><creatorcontrib>Feng, Xiaosong</creatorcontrib><creatorcontrib>Xia, Peiyun</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhan, Xiaohong</au><au>Xia, Ling</au><au>Wu, Youfa</au><au>Yu, Haisong</au><au>Feng, Xiaosong</au><au>Xia, Peiyun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fracture mechanism on Al-Li alloy T-joint welded by dual laser-beam bilateral synchronous welding</atitle><jtitle>Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture</jtitle><date>2019-08</date><risdate>2019</risdate><volume>233</volume><issue>10</issue><spage>2074</spage><epage>2088</epage><pages>2074-2088</pages><issn>0954-4054</issn><eissn>2041-2975</eissn><abstract>Dual laser-beam bilateral synchronous welding technique is considered to replace riveting in terms of skin–stringer joints. The 2.0-mm thick Al-Li alloy T-joint, which is welded by dual laser-beam bilateral synchronous welding between 2099-T83 stringer and 2060-T8 skin, is investigated in the current study. Under the tailored process conditions, the examinations and analyses of microstructures, microhardness distribution, hoop tensile mechanical properties, and fractographies of the T-joint are conducted. Experimental results show that the maximum tensile strength of the weld seam is up to 85% of the tensile strength of the skin material. In order to explore the special fracture characteristics of dual laser-beam bilateral synchronous welding joints after tensile test, a three-dimensional finite element model is established and the residual stress of the weldment is analyzed. Considering the scanning electron microscopy results and simulation results comprehensively, stress concentration is the main reason for the weldment failure in tensile test.</abstract><cop>London, England</cop><pub>SAGE Publications</pub><doi>10.1177/0954405418815361</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0003-3146-6092</orcidid></addata></record> |
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| ispartof | Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture, 2019-08, Vol.233 (10), p.2074-2088 |
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| source | SAGE Complete A-Z List |
| subjects | Aluminum base alloys Aluminum-lithium alloys Computer simulation Finite element method Fracture mechanics Laser beam welding Lasers Mechanical properties Microhardness Residual stress Riveting Scanning electron microscopy Stress concentration Stringers Tensile strength Tensile tests Three dimensional models Welded joints |
| title | Fracture mechanism on Al-Li alloy T-joint welded by dual laser-beam bilateral synchronous welding |
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