Method for simulating object damaged process under impact force action

Abstract

A simulating method of the object damage process by the impulse force decomposes the execution of the complex object into the summation of the directing damage and the limiting damage of the every component. The process: (1) it builds the geometrical model for the complex object and decomposes it to many components according to the command of the structural mechanics and builds the limiting condition for the components to save the structure character of the object; (2) achieve the directing damage of the stress component of the complex object and define the cracking model then attach the crack in the surface of the component, last to generate the crack side and the shiver according to the stress and crack direction; (3) it finds the limiting components of the present component according to the definition restrain condition in the model building process, then it simulate the damage by the different damage arithmetic according to the difference of the component type. The invention can not only fit the command of the real-time character but achieve fidelity.

Description

technical field [0001] The invention relates to a real-time simulation method for the destruction process under the impact of external force. Background technique [0002] When studying the damage simulation of objects in the field of computer graphics, the calculation models often used are mainly physics-based calculation models and process-based calculation models. The physical calculation model is used to analyze the force of the object, and judge whether the stress exceeds the yield limit of the material at the location of stress concentration, so as to determine the position and direction of the fracture surface of the object. Physics-based simulation is widely used in the field of civil engineering and is often referred to as structural simulation. Structural simulation can be divided into component load deformation simulation and structural failure simulation. Structural failure simulation describes the failure process of structural collapse, structural damage, etc....

AI Technical Summary

Problems solved by technology

[0005] In general, whether it is a simple object or a complex object, the simulation model based on physics can get more realistic simulation results, but it cannot meet the real-time requirements; while the simulation model based on the process can achieve real-time performance, but it loses the real-time simulation results. fidelity

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