Evaluating Variability in Reflective Photoelasticity: Focus on Adhesives, Light Sources, and Camera Setup

Abstract

This study investigates the impact of various experimental parameters on the reflective photoelastic coating technique used to measure the stress and strain in model soil particles. The focus is directed towards three pivotal parameters: the choice of adhesive for the photoelastic coating, the inherent properties of the light source, and the configuration of the camera for color image analysis. Through a series of uniaxial compression tests on consistently crafted model soil particles, a notable relationship emerges between the adhesive’s shear strength, its viscosity, and the uniformity of the photoelastic response. While the light source’s characteristics and camera adjustments hold significance, their influence on the consistency of the response is comparatively subtle. Consequently, the adhesive’s role is underscored as instrumental in influencing the photoelastic response, offering valuable insights for subsequent research endeavors utilizing the reflective photoelastic technique.

Comparison of Deep Transfer Learning Models for the Quantification of Photoelastic Images

“…The researchers discovered that the choice of adhesive for attaching the reflective photoelastic material to the samples significantly influenced the photoelastic response. Furthermore, the wavelength band of the light source and the setup of the measurement camera were crucial considerations that were identified [16].…”