摘要
为了揭示室温下固体材料载荷形变过程中红外辐射特征的物理机理,基于光弹材料环氧树脂对径受压圆盘典型试验,从环氧树脂材料形变下的微观分子结构特征出发,分析了圆盘在对径受压形变过程中红外辐射特征的热力学特点,并推导获得定量描述红外辐射特征的计算公式。数据表明计算模拟结果与试验结果吻合较好,揭示了试验中对应红外辐射特征的产生条件和机理,并实现了利用计算机量化分析红外辐射特征的目的。这对于类似条件下的其它材料,包括地质力学和石油地质力学中的非线性材料的红外辐射特征及其与内部应力场之间的量化研究都起到很好的借鉴作用。
In order to reveal the physical mechanism of the infrared radiation characteristics for the solid material deformation subjected to external loading in ambient temperature,based on typical test of photoelastic materials Eporide Resin (EP) disc pressed on diameter,the thermodynamics of the specimen were analyzed from the aspect of microscopic molecule structural characteristics of the EP,and deduce and achieve a quantitative equation to describe the infrared radiation characteristics which reflect the infrared radiation rules and inner stress distribution and the change in the process of loading.The numerical results compared with that of experiment indicates that the results calculated by the model are highly consistent with those of the experiments.It can be used as reference to describe the quantitative relationship between the infrared radiation characteristics and the inner stress field for nonlinear materials in geologic mechanics and petroleum geologic mechanics.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2009年第5期406-409,共4页
Journal of Oil and Gas Technology
基金
国家"973"规划项目(2006CB202200)
国家自然科学基金项目(10775018
10702010)
关键词
环氧树脂
红外辐射特征
热力学
数值模拟
应变张量
resin
infrared radiation characteristics
thermodynamics
numerical simulating
strai
