基于细观力学的多相耐火材料压缩状态损伤表征  

Damage characterization of multiphase refractories under compression based on mesomechanics

作　　者：黄志兴 王志刚[2,3] 刘昌明[2,3] 李贤军 HUANG Zhixing;WANG Zhigang;LIU Changming;LI Xianjun(The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;Key Laboratory of Metallurgical Equipment and Control of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China;School of Mechanical Automation,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉430081 [2]武汉科技大学冶金装备及其控制教育部重点实验室,武汉430081 [3]武汉科技大学机械自动化学院,武汉430081

出　　处：《粉末冶金材料科学与工程》2024年第2期93-100,共8页Materials Science and Engineering of Powder Metallurgy

基　　金：耐火材料损伤状态的声学主被动监测机理与方法研究(51505346);面向教育“新基建”的《工程热力学》课程体系改革与教材建设创新实践(2023233)。

摘　　要：针对多相复合耐火材料压缩状态下的非线性力学行为,在细观损伤力学的基础上,对改进的广义自洽模型进行逆向求解,研究多相耐火材料受到压缩载荷时的损伤行为,提出一种能表征多相耐火材料在压缩载荷下非线性损伤行为的方法。以AMC(aluminum-magnesium-carbon)多相耐火材料为例,利用该方法对其在受压状态下的力学行为进行表征。结果显示,表征结果和实验值吻合较好,为多相复合耐火材料的损伤表征提供了一种思路和理论基础。For the nonlinear mechanical behavior of multiphase composite refractory under compression,on the basis of microscopic damage mechanics,the improved generalized self-consistent model was solved inversely,the damage behavior of multiphase refractory under compression load was investigated,and a method that can characterize the nonlinear damage behavior of multiphase refractory under compression load was proposed.Taking the AMC(aluminum-magnesium-carbon)multiphase refractory as an example,the mechanical behavior under compression was characterized by this method.The results show that the characterization results of this method are in good agreement with the experimental values,which provides an idea and a theoretical basis for the damage characterization of multiphase composite refractory.

关 键 词：细观损伤力学 多相耐火材料 损伤表征 广义自洽模型 非线性力学行为 

分 类 号：TB35[一般工业技术—材料科学与工程]