Regularizing Finite-Element Digital Image Correlation (FE-DIC) problems is essential when using fine meshes, for instance to get a direct bridge with simulation tools or in view of performing data assimilation. Shape optimization brings comparable concerns so it proposed draw inspiration from this field research. In respect, new general spline-based non-invasive regularization scheme proposed, ...

The experimental detection of localized necking is an important issue in sheet metal forming. Today, the most common and extended techniques are strain-based methods using digital image correlation (DIC). present work discuses a thermal methodology to detect onset metals based on analysis temperature gradient infrared thermography (DIT). A series tensile tests H240LA-O3 high-strength steel 1.2m...

In the search for alternatives to obtain more information from rock tests and make them accessible, this study applies Digital Image Correlation technique (DIC 2D) in a diametral compression test called Brazilian Test, comparing result measured by an extensometer with obtained DIC. Rock provide about characteristics applicable several engineering areas, such as mining construction. using strain...

Change in the mechanism of post corrosion bond behavior was investigated a previous experimental study by analyzing deformations concrete using digital image correlation (DIC). Using their DIC data, this focuses on local strain non-uniformity reinforcing bar during uniaxial tensile test due to effect rib height reduction and layer. The results show that, below tip is higher than that flat part ...

Border detection is a critical aspect during removal of a basal cell carcinoma tumor. Since the tumor is only 3% to 50% as stiff as the healthy skin surrounding it, strain concentrates in the tumor during deformation. Here we develop a digital image correlation (DIC) technique for improved lateral border detection based upon the strain concentrations associated with the stiffness difference of ...

Digital image correlation (DIC) is a well-established, non-invasive technique for tracking and quantifying the deformation of mechanical samples under strain. While it provides an obvious way to observe incremental and aggregate displacement information, it seems likely that DIC data sets, which after all reflect the spatially-resolved response of a microstructure to loads, contain much richer ...

This paper describes the design of a test rig to apply a representative pressure load to full-scale composite sandwich secondary aircraft structure. A generic panel was designed with features to represent those in composite sandwich secondary aircraft structure. To provide full-field strain data from the panels, the test rig was designed for use with optical measurement techniques such as therm...