CLOSE-IN EFFECTS FROM A SURFACE BURST.
MRD DIV GENERAL AMERICAN TRANSPORTATION CORP NILES ILL
Pagination or Media Count:
A computer program for the solution of stress wave propagation into a real rock material near the center region from a surface burst of a large yield nuclear device was prepared. Preliminary numerical results are shown. The computer program was prepared from a set of finite difference equations representing the differential equations of motion. The differential equations of motion are taken in a form which includes large displacements, large strains, large rotations, large velocities, and accelerations. A constitutive equation relating stresses to displacements, strains and temperature was derived. This equation accounts for plasticity, finite strains, and temperature. The equation was developed in two stages. The form of the reversible component was derived in accordance with classical thermodynamics and finite elasticity theory. The irreversible component of the macroscopic deformation was derived from the microscopic theory of the motion of crystalline imperfections and their relationship and response to stresses and temperature. Author