College - Author 1
College of Architecture and Environmental Design
Department - Author 1
Architectural Engineering Department
Degree Name - Author 1
BS in Architectural Engineering
Anahid Behrouzi, College of Architecture and Environmental Design, Architectural Engineering Department
MODEM is an open-source, MATLAB-based digital image correlation (DIC) program that was developed at the University of Auckland for small-scale testing of flexible materials. Structural engineering researchers at both the University of Auckland and Cal Poly – San Luis Obispo wanted to expand the uses of the program to study the seismic response of large-scale test specimens. This guide document describes how to implement DIC using MODEM, including the hardware and software needed to run an experiment as well as data collection and post-processing procedures for the program. Additionally, this document includes a case study focusing on a DIC test program consisting of several aluminum coupons subjected to pure tension. A summary of MODEM’s output from one of these tests informs future users of the benefits and pitfalls that can occur while running DIC experiments and prepares them to use this program in their experiments. Furthermore, this work demonstrates that researchers can accurately quantify the full-field deformation of structures at a localized scale and utilize this data to corroborate traditional instrumentation like strain gages and linear potentiometers as well as to calibrate computational finite element models.