Topic
Digital image correlation
About: Digital image correlation is a research topic. Over the lifetime, 7842 publications have been published within this topic receiving 132166 citations.
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TL;DR: In this paper, a series of tensile tests on laminates with various fiber orientation angles and specimens with different notch diameter/width (D/W ) ratios are designed and tested to determine the stress concentration factor (SCF), failure process, delamination, and tensile strength degradation of aluminum as well as in E-glass laminated plates.
73 citations
TL;DR: In this article, the influence of stand-off distance on the dynamic response of thin ductile plates subjected to airblast loading was investigated, and the results showed that the maximum response is driven by the positive impulse from the airblast, as it occurred after the positive duration of the pressure pulse.
73 citations
TL;DR: An in vitro inflation test method showed that bovine scleral tissue exhibited nonlinear and viscoelastic behavior characterized by a rate-dependent displacement response, hysteresis during unloading and creep, suggesting that the tissue can be modeled as a quasilinear viscoELastic material in the physiological pressure range of 2-6 kPa.
73 citations
TL;DR: In this article, a method for accurate assessment of nonlinear shear stress-strain relations of composite materials is developed using short-beam shear (SBS) tests.
73 citations
TL;DR: This review of literature examined the four most commonly adopted methods for strain measurements (strain gauges, fibre Bragg grating sensors, digital image correlation, and digital volume correlation), with a focus on studies with bone as a substrate material, at the organ and tissue level.
Abstract: Osteoporosis related fractures are a social burden that advocates for more accurate fracture prediction methods. Mechanistic methods, e.g. finite element models, have been proposed as a tool to better predict bone mechanical behaviour and strength. However, there is little consensus about the optimal constitutive law to describe bone as a material. Extracting reliable and relevant strain data from experimental tests is of fundamental importance to better understand bone mechanical properties, and to validate numerical models. Several techniques have been used to measure strain in experimental mechanics, with substantial differences in terms of accuracy, precision, time- and length-scale. Each technique presents upsides and downsides that must be carefully evaluated when designing the experiment. Moreover, additional complexities are often encountered when applying such strain measurement techniques to bone, due to its complex composite structure. This review of literature examined the four most commonly adopted methods for strain measurements (strain gauges, fibre Bragg grating sensors, digital image correlation, and digital volume correlation), with a focus on studies with bone as a substrate material, at the organ and tissue level. For each of them the working principles, a summary of the main applications to bone mechanics at the organ- and tissue-level, and a list of pros and cons are provided.
73 citations