We propose a novel hybrid FPP-DIC technique to measure an object’s shape and deformation in 3D simultaneously by using single 3CCD color camera, which captures the blue fringe patterns red fluorescent speckles within same image. Firstly, were painted on surface of specimen. Subsequently, 12 computer-generated with black background projected onto specimen DLP projector. Finally, both reference d...

Based on the recently proposed mirror-assisted multi-view digital image correlation (MV-DIC), we establish a cost-effective and easy-to-implement high-speed (MVHS-DIC) method explore its applications for dual-surface full-field dynamic deformation measurement. In contrast to general requirement of four expensive cameras field measurement, established MVHS-DIC halves cost by involving only two s...

Digital Image Correlation (DIC) is a common tool for assessing the movement of objects in a scene. Among others, one of the most popular techniques consists of tracking a dotted texture imitating speckle patterns. In this work, we analyzed the individual dots that form this pattern in order to propose an optimum size, shape, and dynamic range that allows minimizing the tracking error. Tracking ...

As part of a programme investigating the structural integrity of welds, the Digital Image Correlation (DIC) technique was used to obtain the full-field strain distribution during tensile testing of cross-weld specimens cut from a multi-pass girth welded pipe. The displacement maps were analyzed using Matlab scripts to compute local stress-strain variations from which the local proof stress valu...

High temperature applications of ceramic matrix composites (CMCs) necessitate a rigorous understanding of the fracture and damage mechanisms that occur under thermo-mechanical loading, requiring the development of advanced small-scale characterization approaches. In this work, fiber-reinforced SiC/SiC tensile specimens were loaded in a scanning electron microscope (SEM) at 800°C, and full-field...

As part of a programme investigating the structural integrity of welds, the Digital Image Correlation (DIC) technique was used to obtain the full-field strain distribution during tensile testing of cross-weld specimens cut from a multi-pass girth welded pipe. The displacement maps were analyzed using Matlab scripts to compute local stress-strain variations from which the local proof stress valu...

Abstract The bond between polymer fibers and the surrounding cementitious matrix is essential for development of concrete reinforcement. single fiber pull‐out test (SFPT) standard characterization technique testing strength. However, different phases debonding cannot be distinguished by SFPT. This study investigates from with a modified SFPT proposes methods to change setup generate more valuab...

PURPOSE Scleral stiffening has been proposed as a treatment for glaucoma to protect the lamina cribrosa (LC) from excessive intraocular pressure-induced deformation. Here we experimentally evaluated the effects of moderate stiffening of the peripapillary sclera on the deformation of the LC. METHODS An annular sponge, saturated with 1.25% glutaraldehyde, was applied to the external surface of ...

Abstract In sheet metal stamping, the occurrence of strain localization in a deformed is considered failure. As so, metal’s formability conventionally evaluated using Forming Limit Diagram (FLD), which separates principal space into safety and unsafety regions by Curve (FLC). This study presents an evaluation method for detecting based on Digital Image Correlation (DIC) during experiment. The c...

Two-dimensional meso-scale finite element models with real aggregates are developed using images obtained by digital image processing to simulate crack propagation processes in concrete under uniaxial compression loading. The model is regarded as a three-phase composite material composed of aggregate, mortar matrix and interface transition zone (ITZ). Cohesive elements traction–separation laws ...