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Open AccessArticle

Tensile Behavior and Formability of Pre-Painted Steel Sheets

1
Dipartimento di Ingegneria Industriale e Scienze Matematiche (DIISM), Università Politecnica delle Marche, Via Brecce Bianche, 60100 Ancona, Italy
2
Università degli Studi eCampus, Via Isimbardi 10, 22060 Novedrate, Italy
*
Author to whom correspondence should be addressed.
Metals 2020, 10(1), 53; https://doi.org/10.3390/met10010053
Received: 1 November 2019 / Revised: 3 December 2019 / Accepted: 25 December 2019 / Published: 27 December 2019
The present work aims at studying the tensile behavior and formability of pre-painted steel sheets. To this purpose, uniaxial tensile and hemispherical punch tests were performed in order to analyze the deformation behavior of pre-painted sheets under uniaxial stretching and biaxial balanced stretching conditions, respectively. Tests were interrupted in order to obtain different strain levels until fracture; at each strain level reached, the occurrence of superficial damages on the paint coating was detected; thinning of the different layers of the pre-painted sheet was also measured. It was observed that the degree of damage on the paint coating depends on the loading condition; in particular, under uniaxial stretching, the paint coating is able to follow the steel sheet during deformation up to the onset of the necking, whilst, under biaxial balanced stretching, coating exhibits superficial damages before fracture of the sheet. View Full-Text
Keywords: pre-painted sheets; uniaxial tensile test; hemispherical punch test; superficial damage; formability; anisotropy; limiting dome height pre-painted sheets; uniaxial tensile test; hemispherical punch test; superficial damage; formability; anisotropy; limiting dome height
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Forcellese, A.; Mancia, T.; Simoncini, M. Tensile Behavior and Formability of Pre-Painted Steel Sheets. Metals 2020, 10, 53.

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