Detalhes bibliográficos
| Resumo: | This article presents new joining-by-forming processes to assemble longitudinally two metal-polymer sandwich composite panels perpendicular to one another. Process design draws from an earlier development of the authors for metal sheets to new concepts based on the combination of sheet-bulk forming with mortise-and-tenon joints. Selected examples obtained from experimentation and finite element modelling give support to the presentation. A new three-stage joining by the forming process is capable of producing mechanically locked joints with larger and stiffer flat-shaped heads than those fabricated by alternative single- or two-stage solutions. Failure in the new three-stage joining by the forming process is found to take place by cracking instead of disassembling after unbending the flat-shaped head of the joint back to its original shape. The required forming forces to produce the new metal-polymer joints are below 15 kN, allowing them to be an effective, easy-to-implement alternative to existing solutions based on adhesive bonding, welding and mechanical fastening. |
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| Autores principais: | Pragana, João |
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| Outros Autores: | Contreiras, Tomás R. M.; Bragança, Ivo; Silva, Carlos; Alves, Luís; Martins, Paulo |
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| Assunto: | Joining by forming Sandwich composites Experimentation Finite element method Destructive testing |
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| Ano: | 2019 |
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| País: | Portugal |
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| Tipo de documento: | artigo |
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| Tipo de acesso: | acesso restrito |
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| Instituição associada: | Instituto Politécnico de Lisboa |
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| Idioma: | inglês |
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| Origem: | Repositório Científico do Instituto Politécnico de Lisboa |
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