塑性应变强化修正模型与TBM刀具磨损精细模拟方法
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- 英文论文题名：A Modified Plastic Strain Hardening Contact Model and Refined Simulation Method for TBM Cutter Wear
- 论文作者：许李瑜 ; 薛亚东
- 英文论文作者：XU Liyu ; XUE Yadong ; Key Laboratory of Geotechnical and Underground Engineering ; Ministry of Education ; Department of Geotechnical Engineering ; Tongji University
- 年：2016
- 作者机构：同济大学岩土及地下工程教育部重点实验室;同济大学地下建筑与工程系;
- 论文关键词：PFC ; 磨损 ; 金属 ; 接触模型 ; 塑性
- 英文论文关键词：PFC ; Wear ; Metal ; Contact model ; Plasticity
- 会议召开时间：2016-10-24
- 会议录名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会论文集
- 语种：中文
- 分类号：U455.31
- 学会代码：OGTY
- 会议名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会
- 会议地点：中国四川成都
- 主办单位：中国土木工程学会隧道及地下工程分会
- 学会名称：中国土木工程学会
- 页数：8
- 文件大小：2028k
- 原文格式：O
- 会议级别：全国
摘要
全断面岩石隧道掘进机(Tunnel Boring Machine,TBM)广泛应用于各类隧道施工,盘形滚刀作为TBM破岩的主要工具,其磨损问题直接关系着工程的效率和成本,目前关于其普遍磨损机理的认识仍远不完善。基于离散元法的PFC(Particle Flow Code,颗粒流程序)可以在计算过程中自发生成裂纹并模拟裂纹的扩张,在研究材料失效破坏过程方面具有自然的优势。PFC内置有多种线弹性接触模型,主要用于模拟岩石等硬脆材料颗粒间的作用规律,而在对于金属材料的模拟上存在一定欠缺。本文在此基础上,通过增添反映材料塑性的参数并修改力-位移公式,建立了一种适用于金属材料的接触模型。通过简单拉、压试验,发现采用修正后接触模型的材料应力应变关系以及拉、压破坏方式均与金属类似,表现出较好的塑性,为在PFC中模拟金属材料提供了一种思路。在结合工程实际的实例模拟中刀圈表现出与工程中相似的崩刃现象,结果表明该接触模型可以较好地用于滚刀磨损问题的研究。
Full-face tunnel boring machine has been widely used in tunnel construction.Disc cutter is the main tool for TBM to break rock,so its wear problem has a direct relationship with the efficiency and cost of the engineering.However,the detailed understanding of the prevailing wear mechanisms is still far from complete.The DEM-based PFC has a great advantage on the research for materialfailure process,since it can simulate the initiation and propagation of cracks during calculation.There are some linear-elastic built-in contact models in PFC,mainly to simulate the interaction between particles of hard and brittle material such as rocks,therefore cannotproperly solve problems about metal.In this paper,a new contact model is raised by adding parameters about plasticity and change force-displacement law of one of built-in contact model.By simple tensile and compression test,it is proved that the modified contact modelshows better plasticity and has a more similar stress-strain curve and failure mode with metal,providing a new idea to research metal in PFC.In the instance simulation based on engineering practice,pattern of cutter chipping is similar with statistical result,means that the new contact model can be preferably applied in research about cutter wear.
Full-face tunnel boring machine has been widely used in tunnel construction.Disc cutter is the main tool for TBM to break rock,so its wear problem has a direct relationship with the efficiency and cost of the engineering.However,the detailed understanding of the prevailing wear mechanisms is still far from complete.The DEM-based PFC has a great advantage on the research for materialfailure process,since it can simulate the initiation and propagation of cracks during calculation.There are some linear-elastic built-in contact models in PFC,mainly to simulate the interaction between particles of hard and brittle material such as rocks,therefore cannotproperly solve problems about metal.In this paper,a new contact model is raised by adding parameters about plasticity and change force-displacement law of one of built-in contact model.By simple tensile and compression test,it is proved that the modified contact modelshows better plasticity and has a more similar stress-strain curve and failure mode with metal,providing a new idea to research metal in PFC.In the instance simulation based on engineering practice,pattern of cutter chipping is similar with statistical result,means that the new contact model can be preferably applied in research about cutter wear.
引文
[1]杨文亮.TBM盘形滚刀破岩过程与机理研究[D].上海:同济大学.2016.YANG Wenliang.Study on the rock fracture process and mechanism by TBM disc cutters[D].Shanghai:Tongji University,2016.
[2]Roxborough,F.F.The role of some basic rock properties in assessing cuttability.Tunnels-Wholly Engineered Structures[J].Australian Federation of Civil Celebrants,Institution of Engineers Australia,Canberra,1987,1-21
[3]刁振兴,薛亚东,王建伟.引汉济渭工程岭北隧洞TBM利用率分析[J].隧道建设,2015,12(35):1361-1368.DIAO Zhenxing,XUE Yadong,WANG Jianwei.Analysis on TBM availability in construction of Lingbei tunnel of Hanjiang RiverWeihe River water conveyanceproject[J].Tunnel Construction,2015,12(35):1361-1368.
[4]张照煌,李福田.全断面隧道掘进机施工技术[M].北京:中国水利水电出版社,2006ZHANG Zhaohuang,LI Futian.Construction Technology of Full-face TBM[M].Beijing:China Waterpower Press,2006
[5]汪选国,严新平,李涛生等.磨损数值仿真技术的研究进展[J].摩擦学学报,2004,24(2):188-192.WANG Xuanguo,YAN Xinping,LI Taosheng,WU Gang.Research status of wear numerical simulation technology[J].Tribology,2004,24(2):188-192.
[6]EM Bortoleto,AC Rovani,V Seriacopi.Experimental and numerical analysis of dry contact in the pin on disc test[J].Wear.2013,301:19-26.
[7]V Hegadekatte,J Hilgert,O Kraft.Multi time scale simulations for wear prediction in micro-gears[J].Wear.2010,268(1-2):316-324.
[8]D.O.Potyondy,P.A.Cundall.A bonded-particle model for rock[J].Rock Mechanics and Mining Sciences.2004.41:1329-1364
[9]王文健,郭俊,刘启跃.接触应力对轮轨材料滚动摩擦磨损性能影响[J].摩擦学学报.2011,31(4):352-356.WANG Wenjian,GUO Jun,LIU Qiyue.Effect of contact stress on rolling friction and wear behavior of wheel-rail materials[J].Tribology,2011,31(4):352-356.
[10]李宝良.线接触磨损数值仿真及应用研究[D].大连:大连交通大学,2010.LI Baoliang.Researchof numerical simulationand applicationof line contactwear[D].Dalian:Dalian Jiaotong University,2010.
[11]Sawamoto Y,Tsubota H,Kasai Y,Koshika N,Morikawa H.Analytical studies on local damage to reinforced concrete structures under impact loading by discrete element method[J].Nuclear Engineering and Design,1998,179:157-177.
[12]Ivan Iordanoff,A.Battentier,J.Neauport.A discrete element model to investigate sub-surface damage due tosurface polishing[J].Tribology International.2008,41:957-964.
[13]段正君.陶瓷刀具干切削Inconel718实验研究及刀具磨损的离散元模拟[D].湖南:湘潭大学,2010.DUAN Zhengjun.Experimentalinvestigation of dry cutting of Inconel718and Discrete Element Method simulation of ceramicstool wears[D].Hunan:Xiangtan University,2010.
[14]丛怡.大理岩加卸荷破坏过程的试验及PFC3D模拟研究[D].山东:青岛理工大学,2012.CONG Yi.Experimental study on marble failure and its numerical simulation by PFC3D under loading and unloading[D].Shandong:Qingdao Technological University,2012.
[15]张风光.基于离散元模拟的玻璃微铣削机理研究[D].河北:河北工业大学,2013.ZHANG Fengguang.Study on the micro-milling mechanism of glass based on simulation by Discrete Element Method[D].Hebei:Hebei Institute of Technology,2013.
[16]范勇.金属面夹芯板抗弯承载力的离散元分析和试验研究[D].黑龙江:哈尔滨工业大学,2011.FAN Yong.Discrete Element Method analysis and experimental study for bending capacity of metal skinned sandwich composite panel[D].Heilongjiang,Harbin Institute of Technology,2011.
[17]刘宏.冷硬铸铁及CFRP切削过程的离散元模拟[D].湖南:湘潭大学,2011.LIU Hong.DEM simulation of the cutting processes of chilled cast iron and CFRP.Hunan,Xiangtan University,2011.
[18]张旭.二维压应力下硬质合金的磨削实验与离散元模拟[D].湖南:湘潭大学,2014.ZHANG Xu.Griding of Cemented Carbide and Discrete Element Method simulation experiment under Two-dimensional compressive stress[D].Hunan:Xiangtan University,2014.
[19]Strack O D L,Cudall PA.The distinct element method as a tool for research in granular media,Part I.Report to the National Science Foundation,Minnesota:University of Minnesota,1978.
[20]Cudall P A,Strack O D L.A discrete numerical model for granular assembles[J].Geotechnique,1979,299(1):47-65.
[21]小原孝之.材料拌和离散元模拟系统的开发与应用[D].北京:清华大学,2007.Obara Takayuki.Development and application of Discrete Element Simulation system for mixing materials[D].Beijing:Tsinghua University,2007.
[22]Itasca Consulting Group Inc.PFC2D User's Manuals[M].2004.
[2]Roxborough,F.F.The role of some basic rock properties in assessing cuttability.Tunnels-Wholly Engineered Structures[J].Australian Federation of Civil Celebrants,Institution of Engineers Australia,Canberra,1987,1-21
[3]刁振兴,薛亚东,王建伟.引汉济渭工程岭北隧洞TBM利用率分析[J].隧道建设,2015,12(35):1361-1368.DIAO Zhenxing,XUE Yadong,WANG Jianwei.Analysis on TBM availability in construction of Lingbei tunnel of Hanjiang RiverWeihe River water conveyanceproject[J].Tunnel Construction,2015,12(35):1361-1368.
[4]张照煌,李福田.全断面隧道掘进机施工技术[M].北京:中国水利水电出版社,2006ZHANG Zhaohuang,LI Futian.Construction Technology of Full-face TBM[M].Beijing:China Waterpower Press,2006
[5]汪选国,严新平,李涛生等.磨损数值仿真技术的研究进展[J].摩擦学学报,2004,24(2):188-192.WANG Xuanguo,YAN Xinping,LI Taosheng,WU Gang.Research status of wear numerical simulation technology[J].Tribology,2004,24(2):188-192.
[6]EM Bortoleto,AC Rovani,V Seriacopi.Experimental and numerical analysis of dry contact in the pin on disc test[J].Wear.2013,301:19-26.
[7]V Hegadekatte,J Hilgert,O Kraft.Multi time scale simulations for wear prediction in micro-gears[J].Wear.2010,268(1-2):316-324.
[8]D.O.Potyondy,P.A.Cundall.A bonded-particle model for rock[J].Rock Mechanics and Mining Sciences.2004.41:1329-1364
[9]王文健,郭俊,刘启跃.接触应力对轮轨材料滚动摩擦磨损性能影响[J].摩擦学学报.2011,31(4):352-356.WANG Wenjian,GUO Jun,LIU Qiyue.Effect of contact stress on rolling friction and wear behavior of wheel-rail materials[J].Tribology,2011,31(4):352-356.
[10]李宝良.线接触磨损数值仿真及应用研究[D].大连:大连交通大学,2010.LI Baoliang.Researchof numerical simulationand applicationof line contactwear[D].Dalian:Dalian Jiaotong University,2010.
[11]Sawamoto Y,Tsubota H,Kasai Y,Koshika N,Morikawa H.Analytical studies on local damage to reinforced concrete structures under impact loading by discrete element method[J].Nuclear Engineering and Design,1998,179:157-177.
[12]Ivan Iordanoff,A.Battentier,J.Neauport.A discrete element model to investigate sub-surface damage due tosurface polishing[J].Tribology International.2008,41:957-964.
[13]段正君.陶瓷刀具干切削Inconel718实验研究及刀具磨损的离散元模拟[D].湖南:湘潭大学,2010.DUAN Zhengjun.Experimentalinvestigation of dry cutting of Inconel718and Discrete Element Method simulation of ceramicstool wears[D].Hunan:Xiangtan University,2010.
[14]丛怡.大理岩加卸荷破坏过程的试验及PFC3D模拟研究[D].山东:青岛理工大学,2012.CONG Yi.Experimental study on marble failure and its numerical simulation by PFC3D under loading and unloading[D].Shandong:Qingdao Technological University,2012.
[15]张风光.基于离散元模拟的玻璃微铣削机理研究[D].河北:河北工业大学,2013.ZHANG Fengguang.Study on the micro-milling mechanism of glass based on simulation by Discrete Element Method[D].Hebei:Hebei Institute of Technology,2013.
[16]范勇.金属面夹芯板抗弯承载力的离散元分析和试验研究[D].黑龙江:哈尔滨工业大学,2011.FAN Yong.Discrete Element Method analysis and experimental study for bending capacity of metal skinned sandwich composite panel[D].Heilongjiang,Harbin Institute of Technology,2011.
[17]刘宏.冷硬铸铁及CFRP切削过程的离散元模拟[D].湖南:湘潭大学,2011.LIU Hong.DEM simulation of the cutting processes of chilled cast iron and CFRP.Hunan,Xiangtan University,2011.
[18]张旭.二维压应力下硬质合金的磨削实验与离散元模拟[D].湖南:湘潭大学,2014.ZHANG Xu.Griding of Cemented Carbide and Discrete Element Method simulation experiment under Two-dimensional compressive stress[D].Hunan:Xiangtan University,2014.
[19]Strack O D L,Cudall PA.The distinct element method as a tool for research in granular media,Part I.Report to the National Science Foundation,Minnesota:University of Minnesota,1978.
[20]Cudall P A,Strack O D L.A discrete numerical model for granular assembles[J].Geotechnique,1979,299(1):47-65.
[21]小原孝之.材料拌和离散元模拟系统的开发与应用[D].北京:清华大学,2007.Obara Takayuki.Development and application of Discrete Element Simulation system for mixing materials[D].Beijing:Tsinghua University,2007.
[22]Itasca Consulting Group Inc.PFC2D User's Manuals[M].2004.