板料拉伸变形的稳定性与成形极限图的建立
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英文标题: |
作者:胡世光 |
单位: 北京航空学院 |
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出版年,卷(期):页码:1979,4(4):10-17 |
摘要:
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在板料成形中,Keeler与Goodwin提出了成形极限图(FLD)但是图形的绘制需要大量的工艺试验.本文从厚向异性板在平面拉应力状态下的失稳条件出发,导出厂解析式,给出了计算成形极限图,并与Keeler-Goodwin图作了比较分析.
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作者简介:
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参考文献:
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[1] O.霍夫曼、沙克斯:工程塑性理论基础 (1953) 中国工业出版社.1964.
[2] H.M.Swift: Plastic instability under planc Stress. J.Mech.and phys.of Solids.vol.1. 1952.
[3] R.Hill:On discontinuous plastic States with special reference to localized necking in the sheet.J.Mech and pllys. of Solids. Vol.1. 1952.
[4] Stuart P.Keeler、Walter A.Backofen: Instabilrty and fracture in sheets streched over rigid punchs. Trans ASM.vol.56. 1963.
[5] Stuart p. Keeler:Circular grid system-A valuable aid for evaluring sheet metal formability. SAE. Report.680092. 1968.
[6] Stuart P. Keeler: llnderstanding sheet metal formability part 4-Pre-dicting forming limits. Machinery. May. 1968. vol.74. No.9.
[7] Gorton M. Goodwin: Applicaion of strain analysis to sheet metalt forming problems in the press Shop. SAE.Report.680093. 1968.
[8] R.希尔:塑性数学理论(1950) .科学出版社.1960.
[9] L.M.Hu:Studies on plastic flow of anistropic metals. J. Applied Mech. Vol.23. No3. Sept.1956.
[10] R.L.Whitely: The importance of directionality in drawing qulity sheet steel. Trans. ASM.1960. vol.52.
[11] J.Woodthorpe、R.pearce:The effect of γ and n upon the forming limit diagrams of sheet steel. Sheet Metal Indutries.Dec.1969.
[12] J.Hiam、A.Lee:Factors influencing the forming-limit curves of Sheet steel. Sheet Metal Industries.May.1978.
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