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Equal Load-Carrying Design of Lapped Joints of Al–Cu Dissimilar Materials

In order to avoid the adverse effects of additional moment and stress concentration of traditional lap joints, a new lap joint was put forward, according to the concept of “equal load-carrying”. Through static analysis and brazing characteristics consideration, the equal load-carrying design method...

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Detalles Bibliográficos
Autores principales: Chen, Zhihao, Ma, Jianxiao, Fang, Hongyuan, Ni, Zhida, Wang, Ping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7579514/
https://www.ncbi.nlm.nih.gov/pubmed/32992939
http://dx.doi.org/10.3390/ma13194293
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author Chen, Zhihao
Ma, Jianxiao
Fang, Hongyuan
Ni, Zhida
Wang, Ping
author_facet Chen, Zhihao
Ma, Jianxiao
Fang, Hongyuan
Ni, Zhida
Wang, Ping
author_sort Chen, Zhihao
collection PubMed
description In order to avoid the adverse effects of additional moment and stress concentration of traditional lap joints, a new lap joint was put forward, according to the concept of “equal load-carrying”. Through static analysis and brazing characteristics consideration, the equal load-carrying design method of Al–Cu lap joint based on brazing method was established. Through three types of brazing, the relationship among two fracture modes, brazing process and static tension curve of lap joint, was analyzed. The results demonstrated that the selection of solder was required to simultaneously meet the requirements of brazability and mechanical properties. A certain relationship existed between the fracture mode of the lap joint and the static tensile curve, while the segments of the static tensile curve corresponded to the fracture paths of the two fracture modes. When the brazing holding time was quite short, the interface bonding was poor, while the bearing capacity of the joint was low; when the holding time was suitable, the bearing capacity of the joint reached the corresponding highest, while the fracture mode conformed to the equal load-carrying design; when the brazing holding time was quite long, the bearing capacity of the joint remained at a high level, but the fracture mode was the same as the holding time was quite short.
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spelling pubmed-75795142020-10-29 Equal Load-Carrying Design of Lapped Joints of Al–Cu Dissimilar Materials Chen, Zhihao Ma, Jianxiao Fang, Hongyuan Ni, Zhida Wang, Ping Materials (Basel) Article In order to avoid the adverse effects of additional moment and stress concentration of traditional lap joints, a new lap joint was put forward, according to the concept of “equal load-carrying”. Through static analysis and brazing characteristics consideration, the equal load-carrying design method of Al–Cu lap joint based on brazing method was established. Through three types of brazing, the relationship among two fracture modes, brazing process and static tension curve of lap joint, was analyzed. The results demonstrated that the selection of solder was required to simultaneously meet the requirements of brazability and mechanical properties. A certain relationship existed between the fracture mode of the lap joint and the static tensile curve, while the segments of the static tensile curve corresponded to the fracture paths of the two fracture modes. When the brazing holding time was quite short, the interface bonding was poor, while the bearing capacity of the joint was low; when the holding time was suitable, the bearing capacity of the joint reached the corresponding highest, while the fracture mode conformed to the equal load-carrying design; when the brazing holding time was quite long, the bearing capacity of the joint remained at a high level, but the fracture mode was the same as the holding time was quite short. MDPI 2020-09-25 /pmc/articles/PMC7579514/ /pubmed/32992939 http://dx.doi.org/10.3390/ma13194293 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chen, Zhihao
Ma, Jianxiao
Fang, Hongyuan
Ni, Zhida
Wang, Ping
Equal Load-Carrying Design of Lapped Joints of Al–Cu Dissimilar Materials
title Equal Load-Carrying Design of Lapped Joints of Al–Cu Dissimilar Materials
title_full Equal Load-Carrying Design of Lapped Joints of Al–Cu Dissimilar Materials
title_fullStr Equal Load-Carrying Design of Lapped Joints of Al–Cu Dissimilar Materials
title_full_unstemmed Equal Load-Carrying Design of Lapped Joints of Al–Cu Dissimilar Materials
title_short Equal Load-Carrying Design of Lapped Joints of Al–Cu Dissimilar Materials
title_sort equal load-carrying design of lapped joints of al–cu dissimilar materials
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7579514/
https://www.ncbi.nlm.nih.gov/pubmed/32992939
http://dx.doi.org/10.3390/ma13194293
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