·1206· 工程科学学报，第39卷，第8期 度增加，断裂带高度减小，压痕变化不大.前刃口光亮 fracture criterion and its application to spinning forming.Acta 带高度随之增加，后刃口光亮带高度变化不大 Aeronautica ET Astronautica Sinica,2011,32(7):1309 (3)模具磨损程度增加，会造成刃口圆角增大，降 (吴卷，詹梅，蒋华兵，等.一种改进的Lemaitr心韧性断裂准 低应力集中程度，造成凸模压入深度增加.由于微裂 则及其在旋压成形中的应用.航空学报，2011,32(7)： 1309) 纹会在模具刃口侧面萌发，导致毛刺显著增加. [8]Kiran R,Khandelwal K.Gurson model parameters for ductile (4)不论前刃口与后刃口，当板厚增加时，断面质 fracture simulation in ASTM A992 steels.Fatigue Fract Eng Ma- 量变化趋势相一致：塌角与压痕相对值都在减小，断裂 ter Struct,.2014,37(2):171 带相对值在增加，光亮带相对值先增大后减小.最大 [9]Hambli R.Comparison between Lemaitre and Gurson damage 冲裁力与扭矩会随着板料厚度增加而增大. models in crack growth simulation during blanking process.Int Mech Sci,2001,43(12):2769 [10]Lee W,Pourboghrat F.Finite element simulation of the punch- 参考文献 less piereing process with Lemaitre damage model.Int Mech [1]Gustafsson E,Oldenburg M,Jansson A.Design and validation of Sci,2005,47(11):1756 a sheet metal shearing experimental procedure.J Mater Process [11]Zhou S H,Liu Y L,Shen H W,et al.Distribution of wall thick- Technol,2014,214(11):2468 ness and damage of rectangular tube with different fillet in ben- [2]Marouani H,Rachik M.Hug E.Experimental investigations and ding process.J Aeron Mate,2013,33(2):66 FEM simulations of parameters influencing the Fe-(wt.3%)Si (周书辉，刘郁丽，沈化文，等.不同圆角过渡的3A21铝合 shearing process.Mech Ind,2012,13(4):271 金矩形管弯曲壁厚变化与损伤研究.航空材料学报，2013， [3]Hoffmann H,Schweitzer M,Milberg J.Rotary blanking.C/RP 33(2):66) Ann-Manuf Technol,1999,48(1):213 [12]Lemaitre J.A continuous damage mechanics model for ductile [4]Saanouni K,Belamri N,Autesserre P.Finite element simulation fracture.J Eng Mater Technol,1985,107(1):83 of 3D sheet metal guillotining using advanced fully coupled elasto- [13]Zhan M.Gu C G,Jiang Z Q,et al.Application of ductile frac- plastic-damage constitutive equations.Finite Elem Anal Des, ture criteria in spin-forming and tube-bending processes.Comp 2010,46(7):535 Mater Sci,2009,47(2):353 [5]Liu Q,Han JT,Liu J,et al.Research on the application of duc- [14]Fang G.Lei L P,Zeng P.Criteria of metal ductile fracture and tile fracture criteria and damage models in finite element simula- numerical simulation for metal forming.Mech Eng,2002,38 tion of blanking process.Forging Stamping Technol,2015,40 (Suppl 1)21 (6):28 (方刚，雷丽萍，曾攀.金属塑性成形过程延性断裂的准则 (刘倩，韩静涛，刘靖，等.韧性断裂准则及损伤模型在冲栽 及其数值模拟.机械工程学报，2002,38（增刊1）：21) 有限元模拟中的应用研究.锻压技术，2015,40(6)：28) [15]Hemandez J J,Franco P,Estrems M,et al.Modelling and ex- [6]Li H,Fu M W,Lu J,et al.Ductile fracture:experiments and perimental analysis of the effects of tool wear on form erors in computations.Int J Plast,2011,27(2):147 stainless steel blanking.J Mater Process Technol,2006,180(1- [7]Wu J,Zhan M,Jiang H B,et al.A modified Lemaitre ductile 3):143工程科学学报,第 39 卷,第 8 期 度增加,断裂带高度减小,压痕变化不大. 前刃口光亮 带高度随之增加,后刃口光亮带高度变化不大. (3)模具磨损程度增加,会造成刃口圆角增大,降 低应力集中程度,造成凸模压入深度增加. 由于微裂 纹会在模具刃口侧面萌发,导致毛刺显著增加. (4)不论前刃口与后刃口,当板厚增加时,断面质 量变化趋势相一致:塌角与压痕相对值都在减小,断裂 带相对值在增加,光亮带相对值先增大后减小. 最大 冲裁力与扭矩会随着板料厚度增加而增大. 参 考 文 献 [1] Gustafsson E, Oldenburg M, Jansson A. Design and validation of a sheet metal shearing experimental procedure. J Mater Process Technol, 2014, 214(11): 2468 [2] Marouani H, Rachik M, Hug E. Experimental investigations and FEM simulations of parameters influencing the Fe鄄( wt. 3% ) Si shearing process. Mech Ind, 2012, 13(4): 271 [3] Hoffmann H, Schweitzer M, Milberg J. Rotary blanking. CIRP Ann鄄Manuf Technol, 1999, 48(1): 213 [4] Saanouni K, Belamri N, Autesserre P. Finite element simulation of 3D sheet metal guillotining using advanced fully coupled elasto鄄 plastic鄄damage constitutive equations. Finite Elem Anal Des, 2010, 46(7): 535 [5] Liu Q, Han J T, Liu J, et al. Research on the application of duc鄄 tile fracture criteria and damage models in finite element simula鄄 tion of blanking process. Forging Stamping Technol, 2015, 40 (6): 28 (刘倩, 韩静涛, 刘靖, 等. 韧性断裂准则及损伤模型在冲裁 有限元模拟中的应用研究. 锻压技术, 2015, 40(6): 28) [6] Li H, Fu M W, Lu J, et al. Ductile fracture: experiments and computations. Int J Plast, 2011, 27(2): 147 [7] Wu J, Zhan M, Jiang H B, et al. A modified Lemaitre ductile fracture criterion and its application to spinning forming. Acta Aeronautica ET Astronautica Sinica, 2011, 32(7): 1309 (吴卷, 詹梅, 蒋华兵, 等. 一种改进的 Lemaitre 韧性断裂准 则及其在旋压成形中的应 用. 航 空 学 报, 2011, 32 ( 7 ): 1309) [8] Kiran R, Khandelwal K. Gurson model parameters for ductile fracture simulation in ASTM A992 steels. Fatigue Fract Eng Ma鄄 ter Struct, 2014, 37(2): 171 [9] Hambli R. Comparison between Lemaitre and Gurson damage models in crack growth simulation during blanking process. Int J Mech Sci, 2001, 43(12): 2769 [10] Lee S W, Pourboghrat F. Finite element simulation of the punch鄄 less piercing process with Lemaitre damage model. Int J Mech Sci, 2005, 47(11): 1756 [11] Zhou S H, Liu Y L, Shen H W, et al. Distribution of wall thick鄄 ness and damage of rectangular tube with different fillet in ben鄄 ding process. J Aeron Mate, 2013, 33(2): 66 (周书辉, 刘郁丽, 沈化文, 等. 不同圆角过渡的 3A21 铝合 金矩形管弯曲壁厚变化与损伤研究. 航空材料学报, 2013, 33(2): 66) [12] Lemaitre J. A continuous damage mechanics model for ductile fracture. J Eng Mater Technol, 1985, 107(1): 83 [13] Zhan M, Gu C G, Jiang Z Q, et al. Application of ductile frac鄄 ture criteria in spin鄄forming and tube鄄bending processes. Comp Mater Sci, 2009, 47(2): 353 [14] Fang G, Lei L P, Zeng P. Criteria of metal ductile fracture and numerical simulation for metal forming. J Mech Eng, 2002, 38 (Suppl 1): 21 (方刚, 雷丽萍, 曾攀. 金属塑性成形过程延性断裂的准则 及其数值模拟. 机械工程学报, 2002, 38(增刊 1): 21) [15] Hern佗ndez J J, Franco P, Estrems M, et al. Modelling and ex鄄 perimental analysis of the effects of tool wear on form errors in stainless steel blanking. J Mater Process Technol, 2006, 180(1鄄 3): 143 ·1206·