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Vol. 16, Special Issue, November 2012, pp. 61-67

 

Bullet

 

Influence of Expansion Joint of Bottom Lining in Ladle Composite Construction Body on Thermal Stress

 

Guozhang Jiang, Gongfa Li, Jianyi Kong, Liangxi Xie and Siqiang Xu

College of Machinery and Automation,

Box 242, Wuhan University of Science and Technology, Wuhan, 430081, China

Tel.: +86-027-68862283

E-mail: whjgz@wust.edu.cn

 

 

Received: 11 September 2012   /Accepted: 11 October 2012   /Published: 20 November 2012

Digital Sensors and Sensor Sysstems

 

Abstract: Expansion joint has an important effect on the thermal stress of ladle composite construction body. The thermal expansion stress is one of important reasons that lead to damage, so it is of great practical value to calculate the thermal expansion stress. Expansion joint question between the inside linings could be summed up as a kind of contact question, whose physical model was set up, and the finite element model of expansion joint of bottom lining in ladle composite construction body was built. The contact stress of expansion joint in each layer was researched. The results illustrate that setting 2 millimeters expansion joint can reduce the contact stress which is equate to 1/6 ~ 1/5 of crushing strength of the lining.

 

Keywords: Ladle composite construction body, Bottom lining, Expansion joint, Finite element method, Thermal stress

 

 

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