Transactions of Materials and Heat Treatment

Title：Tensile performance of 50W800G silicon steel sheet with fore-flaw under different loading conditions

Authors： HE Yu-lin SUN Ming-jun

Unit： Jiangsu Polytechnic of Finance & Economics Shanghai Meishan Iron and Steel Co. Ltd.

KeyWords： silicon steel sheet fore-flaw loading condition

ClassificationCode：TG142

year,vol(issue):pagenumber：2013,38(5):70-73

Abstract：

The stress strain relation of the fore-flaw sample for 50W800G silicon steel sheet under different loading conditions was discussed. The results show that in the stress-strain curves of 45° and 90° crack tip of the single axial perpendicular to the direction of the crack line，the elastic modulus and yield strength are lower than the smooth samples，which explains the singularity of the crack tips stress and strain field. The stress-strain curves of 45° and 90° crack tip of the double axles show that the stress increases slowly under load ratio of 2∶1 and 3∶1，and the curve of stress-strain is higher than that of load ratio 1∶1.

Funds：

何玉林(1975- )，女，硕士，讲师

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