CAJ | 학술논문

基于材料的热力学关系和能量守恒定律,给出弹性体形变过程中红外辐射温度改变量和辐出度变化的物理计算方程.并结合有限元方法进行物理建模,对光弹材料三点弯载荷实验过程中的红外辐射出射度的分布进行数值计算和模拟.结果与实验结果吻合较好,表明模型及其相关理论是合理的,可以用来量化揭示实验中的红外辐射特征.从而得到一种能够利用计算机量化分析固体材料载荷过程中红外辐射特征机理的计算方法.
기우재료적열역학관계화능량수항정률,급출탄성체형변과정중홍외복사온도개변량화복출도변화적물리계산방정.병결합유한원방법진행물리건모,대광탄재료삼점만재하실험과정중적홍외복사출사도적분포진행수치계산화모의.결과여실험결과문합교호,표명모형급기상관이론시합리적,가이용래양화게시실험중적홍외복사특정.종이득도일충능구이용계산궤양화분석고체재료재하과정중홍외복사특정궤리적계산방법.
Based on thermodynamics and energy conservation law, an elastic body physical model is established.. A physical equation of infrared radiation temperature and radiant exitance is achieved. With finite element method (FEM) the model can be used to analyzing infrared radiant energy of a three-point bending beam of elastic-photo material subjected to external loading in room-temperature. It shows that results calculated are highly coincidence with those of experiments. The model and relative theories are rational in quantitative analysis. A quantitative method is shown to analyse and reveal mechanism of infrared radiation of solid materials by computer.