2004•Jixie qiangduRequires access

ANALYSIS OF TEMPERATURE EFFECT IN CURRENT-CARRYING PLATE WITH AN ARC-CRACK

Yang Chun

Abstract

The temperature field around the crack tip in a current carrying plate with a penetrated arc crack under the action of transient pulse current was calculated and analyzed using complex function analysis solution. This solution was obtained on the condition that the power of point heat source was deduced under the action of transient pulse current, which was the basis of solving the stress field around the crack tip. The calculated examples were provided. If a current with proper intensity has been switched on, the goal of controlling the melting and welding dimension effectively around the crack tip can be obtained.

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Available abstract

Key concepts: Current (fluid), Materials science, Mechanics, Transient (computer programming), Crack tip opening displacement, Arc (geometry), Welding, Stress intensity factor