Patent ID: 11960804
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A numerical analysis apparatus for reducing errors in calculating displacement values of nodes of a structure, the numerical analysis apparatus comprising one or more processors configured to:
calculate a shape tensor K of a first node;
calculate force state vectors T of the first node and each of a plurality of second nodes by using the shape tensor; and
calculate a peridynamic motion equation of the first node by using the force state vectors,
wherein the first node is a node located on a boundary of the structure and has a predetermined size horizon region,
the plurality of second nodes is nodes in the horizon region,
the plurality of second nodes includes one or more third nodes,
the third node is a second node having no node at a point which is origin-symmetrical based on the first node among the plurality of second nodes, and
the one or more processors are configured to calculate the shape tensor by using a position value in which the third node is origin-symmetrical based on the first node,
wherein the structure is a material, and the boundary is a crack or a boundary region in the material.