Characterization of PLA/Palm Fiber Films by Conventional Tensile Test and Digital Image Correlation

Kharrat, Fatma; Khlif, Mohamed; Hilliou, L.; Nouri, H.; Haboussi, Mohamed; Bradaï, Chedly

doi:10.1007/978-3-031-14615-2_66

Cited by 1 publication

(1 citation statement)

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“…The table also compares the film biaxial properties with the uniaxial properties investigated in our previous study. 37 The mean values of all data are presented with their respective standard deviations given in brackets. Uniaxial characterization involved conducting tensile tests on PLA film strips cut in both the machine direction (MD) and the transverse direction (TD).…”

Section: Resultsmentioning

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: Resultsmentioning

confidence: 99%