Evaluation of static and dynamic contact stresses in simulated granular particles using strain gages
Date of Original Version
The application of strain gages for the determination of static and dynamic contact loads in granular particles is demonstrated. For experimental convenience, the granular particles are simulated by circular disks fabricated from Homalite-100, a brittle polyester material. Stress field equations in the vicinity of the contact points are carefully evaluated to optimize the relative position of strain gages. The results obtained from strain gages were compared with those obtained using the optical technique of photoelasticity for both static and dynamic problems. Finally, as an example, strain gages are used to study wave propagation in a single chain assembly of disks.
Journal of Testing and Evaluation
Xu, Y., and A. Shukla. "Evaluation of static and dynamic contact stresses in simulated granular particles using strain gages." Journal of Testing and Evaluation 21, 3 (1993): 178-187. doi:10.1520/jte11768j.