聊聊动态强度和损伤演化

王礼立 胡时胜 杨黎明 董新龙 王晖

王礼立, 胡时胜, 杨黎明, 董新龙, 王晖. 聊聊动态强度和损伤演化[J]. 爆炸与冲击, 2017, 37(2): 169-179. doi: 10.11883/1001-1455(2017)02-0169-11
引用本文: 王礼立, 胡时胜, 杨黎明, 董新龙, 王晖. 聊聊动态强度和损伤演化[J]. 爆炸与冲击, 2017, 37(2): 169-179. doi: 10.11883/1001-1455(2017)02-0169-11
Wang Lili, Hu Shisheng, Yang Liming, Dong Xinlong, Wang Hui. Talk about dynamic strength and damage evolution[J]. Explosion And Shock Waves, 2017, 37(2): 169-179. doi: 10.11883/1001-1455(2017)02-0169-11
Citation: Wang Lili, Hu Shisheng, Yang Liming, Dong Xinlong, Wang Hui. Talk about dynamic strength and damage evolution[J]. Explosion And Shock Waves, 2017, 37(2): 169-179. doi: 10.11883/1001-1455(2017)02-0169-11

聊聊动态强度和损伤演化

doi: 10.11883/1001-1455(2017)02-0169-11
详细信息
    作者简介:

    王礼立(1934—),男,教授,博士生导师,wanglili@nbu.edu.cn

  • 中图分类号: O347

Talk about dynamic strength and damage evolution

  • 摘要: 材料强度在传统上常理解为材料在外载荷下抵抗流动/变形和破断的能力。由流变阶段到貌似突发的破断,其实源于一个隐含的应变率/时间相关的损伤演化过程。动态损伤演化研究的难点在于损伤与流变总是耦合在一起发展的。研究发现,热激活损伤演化模型可成功描述材料宏观损伤的动态演化。在此基础上,从实测的含损伤演化的表观应力应变曲线,可将两者解耦分开,并可确定各自相关的材料参数。这一思路可推广到中医脉诊的客观化研究,通过脉搏波信息定量反演脉搏波系统的正常及病态本构关系,可诊断生命体偏离正常状态的程度(病情),这可视为一种广义的损伤演化和强度问题。上述思路还可推广到地震预报研究,即“对地球把脉”。与加卸载响应比理论相结合,通过相邻3处的地震波信息来反演地球相关板块含损伤演化的非线性载荷-响应曲线,再区分出损伤演化程度,将有利于改进地震预报,这可视为另一种广义的损伤演化和强度问题。
  • 图  1  材料的率-温相关的动态力学行为之示意

    Figure  1.  Rate-temperature-dependent behaviors of materials

    图  2  PMMA不同应变率下的理论曲线与实验数据的对比

    Figure  2.  Comparisons between the experimental data and theoretical predictions for PMMA

    图  3  PP/PA共混高聚物BP神经网络预示曲线与实验曲线对比

    Figure  3.  Comparisons between the BP neural networks predictions and experimental data for PP/PA polymer blend

    图  4  PP/PA共混高聚物由BP神经网络确定的D=(ε, ${\mathit{\dot \varepsilon }}$)

    Figure  4.  The D=(ε, ${\mathit{\dot \varepsilon }}$) determined by the BP neural networks for PP/PA polymer blend

    图  5  计及损伤演化的材料率-温相关的动态力学行为的示意图

    Figure  5.  Rate-temperature dependent behavior of materialstaking account of damage evolution

    图  6  加卸载响应比概念之示意

    Figure  6.  Schematics of the concept of load-unload response ratio

  • [1] 中国大百科全书总委员会.中国大百科全书:力学[M].北京:中国大百科全书出版社, 1985:397.
    [2] Timoshenko S P. Strength of materials[M]. New York: Van Nostrand Company, 1930.
    [3] Lindholm U S. Review of dynamic testing techniques and material behavior[C]//Proceedings of Conference on Mechanical Properties of Materials at High Rates of Strain. London: Institute of Physics, 1974: 3-21.
    [4] Kachanov L M. Time of the rupture process under creep conditions[J]. Izv AN SSSR Otd Tekhn Nauk, 1958, 8:26-31.
    [5] 王礼立.绝热剪切: 材料在冲击载荷下的本构失稳[M].王礼立, 余同希, 李永池.冲击动力学进展.合肥: 中国科学技术大学出版社, 1992: 3-33.
    [6] 王礼立, 蒋昭镳, 陈江瑛.材料微损伤在高速变形过程中的演化及其对率型本构关系的影响[J].宁波大学学报(理工版), 1996, 9(3):47-55. Wang Lili, Jiang Zhaobiao, Chen Jiangying. Micro-damage evolution in high velocity deformation and its influence on rate-dependent constitutive relation of materials[J]. Journal of Ningbo University (Natural Science & Engineering Edition), 1996, 9(3):47-55. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199600379176
    [7] Wang Lili, Jiang Zhaobiao, Chen Jiangying. Studies on rheological relation of materials by taking account of rate-dependent evolution of internal defects at high strain rates[M]//Wang Ren. Rheology of Bodies with Defects. Dordrecht: Kluwer Academic Publishers, 1999: 167-178.
    [8] Huang Dejin, Shi Shaoqiu, Wang Lili. Studies on rate-dependent evolution of damage and its effects on dynamic constitutive response by using a random fuse network model[M]//Chiba A, Tanimura S, Hokamoto K. Impact Engineering and Application. Tokyo: Elsevier Science Ltd., 2001: 743-748.
    [9] Wang Lili, Zhou Fenghua, Sun Zijian, et al. Studies on rate-dependent macro-damage evolution of materials at high strain rates[J]. International Journal of Damage Mechanics, 2010, 19(7):805-820. doi: 10.1177/1056789509359654
    [10] Wang Lili, Hu Shisheng, Yang Liming, et al. Development of experimental methods for impact testing by combining Hopkinson pressure bar with other techniques[J]. Acta Mechanica Solida Sinica, 2014, 27(4):331-344. doi: 10.1016/S0894-9166(14)60041-0
    [11] 王礼立, 胡时胜, 杨黎明, 等.材料动力学[M].合肥:中国科学技术大学出版社, 2016.
    [12] Curran D R, Shockey D A, Seaman L. Dynamic fracture criteria for a polycarbonate[J]. Journal of Applied Physics, 1973, 44(9):4025-4038. doi: 10.1063/1.1662891
    [13] Seaman L, Curran D R, Shockey D A. Computational models for ductile and brittle fracture[J]. Journal of Applied Physics, 1976, 47(11):4814-4826. doi: 10.1063/1.322523
    [14] Curran D R, Seaman L, Shockey D A. Dynamic failure of solid[J]. Physics Report, 1987, 147(5/6):253-388. http://d.old.wanfangdata.com.cn/Periodical/zjdxxb-e201310004
    [15] Curran D R, Seaman L. Simplified models of fracture and fragmentation[C]//High-pressure Shock Compression of Solids Ⅱ: Dynamic Fracture and Fragmentation. New York: Springer-Verlag, 1996: 340-365. https://www.researchgate.net/publication/267469369_Simplified_Models_of_Fracture_and_Fragmentation
    [16] Zhurkov S N, Sanfirova T P. The temperature and time dependence of the strength of pure metals[J]. DoklAkadNauk SSSR, 1955, 101:237.
    [17] 周风华, 王礼立, 胡时胜.有机玻璃在高应变率下的损伤型非线性粘弹性本构关系及破坏准则[J].爆炸与冲击, 1992, 12(4):333-342. Zhou Fenghua, Wang Lili, Hu Shisheng. A damage-modified nonlinear visco-elastic constitutive relation and failure criterion of PMMA at high strain-rates[J]. Explosion and Shock Waves, 1992, 12(4):333-342. http://www.bzycj.cn/CN/abstract/abstract10751.shtml
    [18] Wang Lili, Xu Mingqiao, Shi Shaoqiu. Application of BP neural network to SHPB technique for the investigation of impact response of polymers[C]//Proceedings of 2003 SEM Annual Conference on Experimental and Applied Mechanics. Charlotte, North Carolina, USA, 2003: 167-174.
    [19] 王礼立, 赖华伟, 孙紫建, 等.高聚物计及损伤演化的动态变形和断裂[J].宁波大学学报(理工版), 2003, 16(6):372-380. Wang Lili, Lai Huawei, Sun Zijian, et al. Dynamic deformation and fracture of polymers taking account of damage evolution[J]. Journal of Ningbo University (Natural Science & Engineering Edition), 2003, 16(6):372-380. http://d.old.wanfangdata.com.cn/Periodical/nbdxxb-lg200304008
    [20] Xu Mingqiao, Wang Lili. A new method for studying the dynamic response and damage evolution of polymers at high strain rates[J]. Mechanics of Materials, 2006, 38(1/2):68-75. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=96989ba269e795de8f28b4a6c39d1234
    [21] Wang L, Xu M, Zhu J, et al. A method of combined SHPB technique and BP neural network to study impact response of materials[J]. Strain, 2006, 42(3):149-158. doi: 10.1111/str.2006.42.issue-3
    [22] Sun Zijian, Wang Lili. Studies on impact constitutive behavior and dmage evolutionfor PP/PA polymer blends at large deformation[J]. Journal de Physique IV, 2006, 134:117-124. doi: 10.1051/jp4:2006134019
    [23] Wang Lili, Wang Hui. Mechanics modeling and inverse analyses of pulse wave system from the view-point of traditional Chinese medicine[C]//Proceedings of ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. Busan, South Korea, 2016: OMAE2016-55106. http://en.cnki.com.cn/Article_en/CJFDTotal-LXXB201606017.htm
    [24] 王礼立, 王晖.脉搏波系统的力学模型及反演兼对若干中医学问题的讨论[J].力学学报, 2016, 48(6):1416-1424. Wang Lili, Wang Hui. Mechanical modeling and inverse analyses of pulsewaves system with discussions on some concepts in the traditional Chinese medicine[J]. Chinese Journal of Theoretical and Applied Mechanics, 2016, 48(6):1416-1424. http://d.old.wanfangdata.com.cn/Periodical/lxxb201606018
    [25] Wang Lili. Foundations of stress waves[M]. Amsterdam: Elsevier, 2007.
    [26] 王琦.中医体质学[M].北京:人民卫生出版社, 2009.
    [27] 王琦.九种体质使用手册[M].长春:北方妇女儿童出版社, 2010.
    [28] 王晖.体质的中医保健[M].宁波:宁波出版社, 2009.
    [29] 王晖.全国名老中医王晖学术经验撷英[M].北京:中国中医药出版社, 2014.
    [30] 尹祥础.地震预测新途径的探索[J].中国地震, 1987, 3(1):1-7. Yin Xiangchu.The new approach of earchquake prediction[J]. Earthquake Research in China, 1987, 3(1):1-7. http://d.old.wanfangdata.com.cn/Periodical/kjcgglyyj201103032
    [31] 尹祥础.加卸载响应比理论及其应用[M].北京:科学出版社, 2016."
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出版历程
  • 收稿日期:  2016-12-23
  • 修回日期:  2017-01-19
  • 刊出日期:  2017-03-25

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