Quantifying damage in an AlSi10Mg porous metamaterial through projection-enhanced DVC

Résumé fourni par la source

Abstract A 4D (i.e. spacetime) characterization technique, based on projection-enhanced DVC, was proposed to analyze the mesostructural changes of an aluminum-silicon cellular metamaterial produced via Laser Powder Bed Fusion. This metamaterial, which is characterized by the presence of elliptical mesovoids, was subjected to in situ uniaxial tension and imaged using high-resolution x-ray tomography. The objective of this study was two-fold. First, it sought to quantify the damage growth within the specimen by analyzing residual changes observed from the registration of x-ray radiographs. Second, the study aimed to investigate the reasons behind force relaxation prior to scan acquisitions.