METHOD FOR ANALYZING GRANULAR SUBSTANCE AND CONTINUOUS BODY

摘要

PROBLEM TO BE SOLVED: To provide a method for analyzing a granular substance and a continuous body in which behavior of a granular substance and a continuous body can be analyzed accurately while shortening the calculation time significantly. SOLUTION: A first contact force calculating section 12 calculates a first contact force of the ground elements by analyzing the behavior of the ground element as the granular substance and a pile as the continuous body in the ground. A second contact force calculating section 14 calculates a second contact force being applied from the ground element to the pile. A contact force integrating section 16 integrates the second contact force at the node element of the pile thus calculating a third contact force. A displacement calculating section 18 represents the ground element touching the pile by a ground spring and calculates the spring constant thereof. Displacement of the node element is determined based on the spring constant and the third contact force. A convergence determining section 20 performs convergence loop calculation until the displacement of the node element converges when it does not converge. When convergence conditions are satisfied, processing of next time step is performed. COPYRIGHT: (C)2004,JPO