Digital image correlation for surface deformation measurement: historical developments, recent advances and future goals

B Pan - Measurement Science and Technology, 2018 - iopscience.iop.org
This article is a personal review of the historical developments of digital image correlation
(DIC) techniques, together with recent important advances and future goals. The historical …

A comparative study of dynamic fracture of soda-lime glass using photoelasticity, digital image correlation and digital gradient sensing techniques

S Dondeti, HV Tippur - Experimental Mechanics, 2020 - Springer
The dynamic fracture of high-stiffness and low-toughness materials such as soda-lime glass
(SLG) typically involves crack initiation and growth prior to branching, underlying mechanics …

Dynamic mixed-mode fracture behaviors of PMMA and polycarbonate

BM Sundaram, HV Tippur - Engineering Fracture Mechanics, 2017 - Elsevier
Mixed-mode dynamic crack initiation and growth in polymethymethacrylate (PMMA) and
polycarbonate (PC) are studied experimentally. A simple specimen geometry in conjunction …

Dynamic crack growth normal to an interface in bi-layered materials: an experimental study using digital gradient sensing technique

BM Sundaram, HV Tippur - Experimental Mechanics, 2016 - Springer
The dynamic fracture behavior of layered architectures is experimentally studied.
Specifically, crack penetration, trap**, and branching at an interface are examined. A …

Measurement of orthogonal stress gradients due to impact load on a transparent sheet using digital gradient sensing method

C Periasamy, HV Tippur - Experimental Mechanics, 2013 - Springer
A full-field optical method called Digital Gradient Sensing (DGS) for measuring stress
gradients due to an impact load on a planar transparent sheet is presented. The technique is …

Dynamic fracture behavior of a MAX phase Ti3SiC2

L Shannahan, MW Barsoum, L Lamberson - Engineering fracture …, 2017 - Elsevier
Due to their layered structure, MAX phase ternary carbides and nitrides exhibit unique
mechanical properties between their metal and ceramic constituent materials. Pre-cracked …

A full-field reflection-mode digital gradient sensing method for measuring orthogonal slopes and curvatures of thin structures

C Periasamy, HV Tippur - Measurement Science and Technology, 2013 - iopscience.iop.org
A full-field optical technique capable of measuring angular deflections of light rays reflected
off specularly reflective planar surfaces is developed. The method is aided by 2D digital …

Measurement of crack-tip and punch-tip transient deformations and stress intensity factors using Digital Gradient Sensing technique

C Periasamy, HV Tippur - Engineering Fracture Mechanics, 2013 - Elsevier
The optical method of Digital Gradient Sensing (DGS) is extended to the study of fracture
mechanics and impact mechanics problems. DGS is based on the elasto-optic effect …

Fracture behavior of carbon fiber reinforced polymer composites: an optical study of loading rate effects

C Miao, HV Tippur - Engineering Fracture Mechanics, 2019 - Elsevier
Crack initiation and growth in single-edge notched unidirectional T800s/3900-2 CFRP
laminates are studied under stress wave and quasi-static loading conditions. An optical …

Experimental study of wrinkling behavior of membrane structures via visual method

X Dai, T Yuan, Z Zu, X Shao, L Li, X Cheng, J Zhou… - Thin-Walled …, 2020 - Elsevier
In this study wrinkling behavior of membrane structures was investigated by visual methods.
A dual-biprism-based stereo camera system was employed to obtain image pairs of the …