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板材平面方向性与板材成形极限曲线
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英文标题：Plane Directionality and FLC of Sheet |
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作者：孙进 |
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单位： 内蒙古工业大学 |
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关键词：板材 平面方向性 成形极限曲线 塑性失稳 |
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分类号：TG386.4 |
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出版年,卷(期):页码：1994,19(6):27-30 |
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摘要：
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本文根据板材失稳理论推导了考虑板平面不同方向 n 值影响的失稳计算公式,并建立了相应的理论 FLC。通过对08F 钢板的实测,建立了同种板材不同方向的实际 FLC,并与理论 FLC 进行了比较。
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Based on the theory of plastic instability of sheet,a theoretical formula for caculating the plastic instability is derived out with the influence of in-plane directionality of n-value on FLCs in dif- ferent directions counted in,and corresponding theoretical FLCs are established.Experimental FICs have also been established for verifying the correctness of theoretical analysis.
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基金项目：
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作者简介：
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参考文献：
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[1] 胡世光 板材拉伸变形稳定性与成形极限图的建立,锻压技术 1979． 4
[2] 李志刚等 对各向异性板料成性极限曲线的研究,锻压技术1982． 4
[3] J.Hiam,A.lee,Factors influencing the forming-limit curves of sheet.Sheet Metal Industries,May 1978．
[4] A.G.M.Kastelyn,Just another look at forming limits.Sheet metal Industry,Jan.1985．
[5] H.M.Swift,Plastic instability under plane stress.J.Mech.and phys.of solids,Vol.1． 1952．
[6] R.Hill,On discontinuous plastic states with special reference to localized meckintg in the sheet.J.Mech and phys.of solids.Vol.1． 1952
[7] S.S.Hecker,Simple technique for determining forming limit curves Sheet Metal Industry.Nov.1975．
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