Determination of biaxial stress–strain curves for superplastic materials by means of bulge forming tests at constant stress

Aksenov, Sergey; Sorgente, Donato

doi:10.1016/j.cirpj.2020.09.002

Cited by 14 publications

(2 citation statements)

References 36 publications

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“…9,[13][14][15] Bulge test was also used to investigate the plastic behavior of metallic sheets to understand their formability or to obtain model parameters for predicting thermoforming behavior of plastic or metallic sheets. 7,16,17 As bulge test machines became commercially available, numerous scientific research studies also aimed at constructing and optimizing the bulge test apparatus. One such example is the research work of Boyer which presents a new hydraulic bulge test apparatus capable of measuring the formability of sheet metals at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Application of the bulge test combined with 3D-DIC for biaxial characterization of PLA films and defect detection

Kharrat,

Khlif,

Hilliou

et al. 2023

Journal of Plastic Film & Sheeting

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The bulge test is a versatile mechanical testing technique widely applied in materials science, engineering, and biomedical research to understand the mechanical behavior of materials and structures. In this study, PLA blown films were characterized through the bulge test, and the corresponding properties were compared to those obtained from uniaxial t!esting. To achieve more accurate and precise deformation measurements, 3D digital image correlation (3D-DIC) was used, offering superior capabilities in terms of accuracy, precision, and non-destructive testing. This technique can detect defects such as cracks, voids, and delamination in materials and structures. During the bulge testing, 3D-DIC was utilized to analyze the strain field evolution within the test sample and identify regions of reduced film thickness. Notably, the results indicated zones with strain concentration aligned parallel to the film machine direction, suggesting localized thickness reduction in those areas.

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Section: Introductionmentioning

confidence: 99%

Application of the bulge test combined with 3D-DIC for biaxial characterization of PLA films and defect detection

Kharrat,

Khlif,

Hilliou

et al. 2023

Journal of Plastic Film & Sheeting

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“…In the mechanisms of the superplastic effect, there are two mechanisms as a movement of deviation in grain and diffusion process. These two are interrelated and influence to super-plastic process of study alloy [8,[10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Research on microstructure and mechanical properties of Al-Zn-Mg-Cu alloy when modified by La, Ce and thermo-mechanical treatment

Bui

Nam

et al. 2022

Eureka: PE

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Influence of rare-earth (La, Ce) and thermo-mechanical treatment on microstructure and mechanical properties of Al-Zn-Mg-Cu alloy are presented in this article. After casting, the alloy which was modified by La, Ce, the grain size of samples obtained around 40–50 µm compared to that of without about 65 µm; and after homogeneous, the grain sizes is about 30 µm. After the cold deformation process, the distance between plates is 10 µm. By EDS after casting, the samples have tended to more La, Ce elements at the grain boundary, after homogeneous, the uniformation distribution of rare-earths was presented by mapping of EDS’s results. In addition, after rolling and heat treatment, the elements were found on the grain boundary and matrix. After recrystallization annealing, the grain size is around 10 µm with the modification sample. The grain size was reduced by two processes of modification as well as thermal-mechanical treatment is a condition for increasing the ductility of the studied alloy. Further, as a result of ability deformation from the tensile test, these results demonstrate that the tensile test obtained 140 % when adding La, Ce contents into the alloy combine with thermal-mechanical treatment. The combined used of La, Ce and thermal-mechanical treatment have increased the ductility of Al-Zn-Mg-Cu alloy

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The application of 3D-digital image correlation and analytical approaches on the bulge test for biaxial characterization of biocomposite films

Kharrat

Khlif

Hilliou

et al. 2023

J Braz. Soc. Mech. Sci. Eng.

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Determination of biaxial stress–strain curves for superplastic materials by means of bulge forming tests at constant stress

Cited by 14 publications

References 36 publications

Application of the bulge test combined with 3D-DIC for biaxial characterization of PLA films and defect detection

Application of the bulge test combined with 3D-DIC for biaxial characterization of PLA films and defect detection

Research on microstructure and mechanical properties of Al-Zn-Mg-Cu alloy when modified by La, Ce and thermo-mechanical treatment

The application of 3D-digital image correlation and analytical approaches on the bulge test for biaxial characterization of biocomposite films

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