公开(公告)号：US20250139329A1

公开(公告)日：2025-05-01

申请号：US18262747

申请日：2022-08-05

Applicant: SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Ke GAO ,  Weibing CAI

IPC: G06F30/23 ,  G06F111/10 ,  G06F119/14

Abstract: A two-dimensional continuous-discontinuous combined numerical approach for solid fracturing simulation, which includes: discretizing two-dimensional solid into finite elements to obtain a mapping linked list relationship between master-slave nodes; determining whether a crack is initiated according to whether the local stress of the finite element satisfies a strength criterion; if a crack initiates, activating a corresponding pre-embedded cohesive element, updating the mapping linked list relationship between the master-slave nodes at the same time, the cohesive element at the crack enters a yield state, and the mechanical behavior thereof is controlled by a strain softening constitutive curve; and, according to the mapping linked list relationship between the master-slave nodes, accumulating node forces and masses of the slave nodes onto the master node, and updating the velocity and the displacement of the master-slave nodes by adopting a governing equation.