利用万能材料试验机与声发射装置实现脆性材料损伤监测与控制  

Monitoring and Control on the Damage of Brittle Materials Achieved by Using Universal Testing Machine and Acoustic Emission Equipment

作　　者：邱岩[1] 包亦望[1] 刘小根[1] 周华斌[1] 

机构地区：[1]中国建筑材料科学研究总院绿色建筑材料国家重点实验室,北京100024

出　　处：《工程与试验》2011年第B12期7-10,共4页Engineering and Test

摘　　要：主要介绍了国家科技部仪器升级改造计划——《多功能智能化脆性材料试验机》的研究成果,改造后的试验机不仅保留了材料试验机的所有功能,还可以对声发射装置实现实时控制,完成对玻璃、陶瓷等材料的无损性能评价和寿命预测。使用改进后的仪器,研究玻璃和刚化玻璃在动态载荷下的临界应力随载荷速度和应力状态的变化及动态断裂机理,实现对玻璃产品质量检测和服役构件残余性能评价的智能化。The research results of the instrument upgrading project of the ministry of science and technology Brittle Material Testing Machine with Multifunction and Intelligence are introduced in this paper.The new re-built testing machine does not only retain all the functions of the old machine,and it can nondestructively evaluate the performance and predict its service life of the glass and ceramics by acoustic emission equipment.The dynamic fracture mechanism and the relations between the critical stress and the loading speed and change of stress state of the tempered glass are studied by the new re-built testing machine,and realized intelligentized evaluation for quality test and residual performance of the glass.

关 键 词：试验机 声发射 损伤监测 局部强度 

分 类 号：TH87[机械工程—仪器科学与技术]