Pressure-Density Models for Whole Shelled, Ground Shelled and Ground Ear Corn

ABSTRACT THIS paper presents the results from a large number of pressure-density experiments of high moisture corn. They include whole and ground shelled corn with moisture contents ranging from 21 to 40 percent and ground ear corn ranging from 22 to 42 percent. The test results have been used to provide models for the dry den-sity of each of the materials in terms of vertical pressure, load duration and moisture content. Estimated silo capacities based on these models are provided also. A further simpification is used to present the esti-mated dry-matter capacity of a silo in terms of the overall height and, of course, the diameter of that silo. The re-sults are compared with research by Ross et al. (1979) and by Gordon (1974), and with limited full-scale mea-surements of silo capacities