Granular materials undergoing high-strain rate compression play a vital role in various applications, from ceramic armor to vehicle-soil interaction. Previous work suggests that force-chain buckling and particle rearrangement play vital roles in determining material behavior and the development of instabilities . Shock wave propagation is believed to be strongly influenced by fabric and non-uniform loading due to the presence of force chains . While existing continuum breakage models take into account particle morphology, they fail to explicitly consider particle fabric and rearrangement in a physically-transparent manner . We seek to develop a continuum breakage model that incorporates stress heterogeneities and fabric anisotropy, and first examine the elastic behavior of a spring-based model to capture force-chain buckling. Through this model, we investigate the effects of fabric on stiffness, wave propagation and stability. This investigation will provide quantitative links between force chains, fabric, and wave propagation in granular materials.
 Oda, M., & Kazama, H. (1998). Microstructure of shear bands and its relation to the mechanisms of dilatancy and failure of dense granular soils. Geotechnique, 48(4), 465-481.
 Bardenhagen, S. G., & Brackbill, J. U. (1998). Dynamic stress bridging in granular material. Journal of Applied Physics, 83(11), 5732-5740.
 Collins-Craft, N. A., Stefanou, I., Sulem, J., & Einav, I. (2020). A Cosserat Breakage Mechanics model for brittle granular media. Journal of the Mechanics and Physics of Solids, 103975.