Dynamic photoelastic studies of wave propagation in granular media
Date of Original Version
The optical method of dynamic photoelasticity is used to visualize the load transfer profiles due to explosive loading in granular aggregates. The granular media are simulated by using arrays of disks fabricated from a brittle polyester material-Homalite 100. Attention is focused on the effect of microstructure or the geometrical packing of the grains on the wave propagation phenomena. The experimental data are analyzed to obtain the stress wave attenuation, wave velocities and contact stresses as a function of time along various directions in the assembly of grains. Dynamic load transfer functions are developed to predict dynamic contact loads in any systematic or random assembly of grains for any given loading. The predicted results are compared with the experimental data. The effect of local inhomogeneities on the wave propagation phenomena is also shown. © 1991.
Optics and Lasers in Engineering
Shukla, Arun. "Dynamic photoelastic studies of wave propagation in granular media." Optics and Lasers in Engineering 14, 3 (1991): 165-184. doi:10.1016/0143-8166(91)90047-W.