Improving buckling critical stress of sheet with the elasti cpressure on the surfaces of sheet and it ’ s application

Song Aiping、Wang Longtai、Li Jizhong、Wang Shufeng

Strategic Study of CAE ›› 2009, Vol. 11 ›› Issue (2) : 53-59.

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Strategic Study of CAE ›› 2009, Vol. 11 ›› Issue (2) : 53-59.

Improving buckling critical stress of sheet with the elasti cpressure on the surfaces of sheet and it ’ s application

Song Aiping、Wang Longtai、Li Jizhong、Wang Shufeng

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Abstract

A result was discovered by analyzing the stability of rectan gular sheet compressed by the pressure. When the sheet metal is supported by the elastic pressing forces putting on the upper and lower surfaces of sheet in stamping, the sheet stability can be improved and the wrinkling of the sheet metal formed in forming process can be reduced. Based on the result, a novel stamping die was developed. The die can be reconfigured quickly and can suppress the wrinkling of sheet.

Keywords

wrinkling / critical stress / die / stamping process

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Song Aiping,Wang Longtai,Li Jizhong,Wang Shufeng. Improving buckling critical stress of sheet with the elasti cpressure on the surfaces of sheet and it ’ s application. Strategic Study of CAE, 2009, 11(2): 53‒59