CAJ | 학술논문

运用元胞自动机（CA）法，通过计算机编程建立了包含内部微裂纹的元胞自动机模型，结合金属材料学基本原理和动态再结晶理论，模拟了动态再结晶条件下的裂纹愈合过程。通过研究不同因素对裂纹愈合的影响，获得了不同参数（如应变速率、应变量等）下的裂纹愈合规律，阐明了裂纹的分段愈合特征，模拟结果与现有实验研究结果相吻合。
운용원포자동궤（CA）법，통과계산궤편정건립료포함내부미렬문적원포자동궤모형，결합금속재료학기본원리화동태재결정이론，모의료동태재결정조건하적렬문유합과정。통과연구불동인소대렬문유합적영향，획득료불동삼수（여응변속솔、응변량등）하적렬문유합규률，천명료렬문적분단유합특정，모의결과여현유실험연구결과상문합。
By the using of cellular automaton method, cellular automaton (CA) model with internal micro-cracks is estab lished by computer programming. Combining the basic principle of metal materials with dynamic recrystallization theory, crack healing process has been simulated on the basis of dynamic recrystallization conditions. By studying the influence of different factors on the crack healing, crack healing law with different parameters(such as strain rate, strain, etc. ) is got. Crack seg-ment-healing characteristics are clarified, and the simulation results are consistent with existing experimental results.