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Analytical Computing Stresses and Strains in Single Point Incremental Forming

Key engineering materials, 2019-10, Vol.825, p.129-139 [Peer Reviewed Journal]

2019 Trans Tech Publications Ltd ;Copyright Trans Tech Publications Ltd. Oct 2019 ;ISSN: 1013-9826 ;ISSN: 1662-9795 ;EISSN: 1662-9795 ;DOI: 10.4028/www.scientific.net/KEM.825.129

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  • Title:
    Analytical Computing Stresses and Strains in Single Point Incremental Forming
  • Author: Nguyen, Van Thanh ; Dien, Le Khanh ; Nguyen, Huy Bich ; Tan, Le Khanh ; Nguyen, Thanh Nam
  • Subjects: Computation ; Computer simulation ; Empirical analysis ; Finite element method ; Forming techniques ; Mathematical analysis ; Metal sheets ; New technology ; Stresses ; Workpieces
  • Is Part Of: Key engineering materials, 2019-10, Vol.825, p.129-139
  • Description: Nowadays, Single Point Incremental Forming (SPIF) has become popular for metal sheet forming technology in industry in many advanced countries. In the recent decade, many relative studies have concentrated on this new technology of forming sheet by Finite Element Method (FEM) as well as by empirical way. There were very rare studies by pure analytical computing and P.A.F. Martins et al. under a title “Theory of single point incremental forming” performed almost all these researches were based on the analytical framework of SPIF in 2008. After careful studying on this research, we found out its light illogical result: the stresses inside of a random point in the workpiece sheet are constant and not related to the coordinate of the formed point of the sheet. Therefore, it cannot explain the mechanism of rupture and tear of the sheet that is really a serious restriction of the SPIF technology nowadays. This paper dedicates to suggest a new version of pure analytical computing the normal stresses at a random formed point in the sheet that could explain the tear mechanism and a FEM simulation was also carried out also to prove the conviction of the recommended formula.
  • Publisher: Zurich: Trans Tech Publications Ltd
  • Language: English
  • Identifier: ISSN: 1013-9826
    ISSN: 1662-9795
    EISSN: 1662-9795
    DOI: 10.4028/www.scientific.net/KEM.825.129
  • Source: AUTh Library subscriptions: ProQuest Central

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