The Influence of Natural Aging of the AlCu4Mg1 Aluminum Sheet Alloy on the Constitutive Parameters of Selected Models of Flow Stress

• Autorzy: Kut Stanisław , Pasowicz Grzegorz , Stachowicz Feliks

Identyfikatory

DOI

10.12913/22998624/154792

• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of experimental studies aimed at determining constitutive parameters for selected constitutive equations of flow stress as a function of the natural aging time of 2 mm thick AlCu4Mg1 (AW-2024) sheet. The knowledge of these constitutive parameters as a function of aging time is necessary to analyze and model the processes of forming sheet metal stampings after heat treatment during natural aging. The constitutive parameters in individual constitutive equations were determined on the basis of the approximation of the course of strain hardening curves. The courses of these curves for the tested natural aging times in the range of 0-120 minutes after heat treatment were made on the basis of uniaxial stretching tests of samples taken in the directions of 0, 45 and 90 degrees to the direction of sheet rolling. The values of constitutive parameters as a function of natural aging time were determined for four popular models of flow stress: Hollomon, Swift, Voce and El-Magd. Moreover, the relationship between the natural aging time and the value of the yield strength in the tested aging time range was determined, and the accuracy of the investigated constitutive equations for describing the course of the flow stress of the tested sheet material was assessed on the basis of the analysis of approximation errors.

Słowa kluczowe

EN

AW-2024; natural aging; uniaxial tensile tests; flow stress; flow stress model; constitutive parameters

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2022
• Tom: Vol. 16, no 5
• Strony: 216--229
• Opis fizyczny: Bibliogr. 17 poz., fig., tab.

Twórcy

autor

Kut Stanisław

• Rzeszow University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

• https://orcid.org/0000-0003-0870-7548

autor

Pasowicz Grzegorz

• Doctoral School of Engineering and Technical Sciences at the Rzeszow University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

• https://orcid.org/0000-0002-7932-0044

autor

Stachowicz Feliks

• Rzeszow University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

• https://orcid.org/0000-0003-2756-0414

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).