盐岩的压剪疲劳特性与位错损伤研究

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (804 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract We carry out different angle shear tests and fatigue tests，to research salt rock compression-shear mechanical properties and crystal dislocations characteristics. Based on the damage mechanics theory，dislocation-damage relationship model is established. The main conclusions are：(1) Because that salt rock crystal dislocation slip resistance decreases，salt rock deformation resistance，peak stress and maximum deformation decrease with increasing shear deformation angle. (2) Fatigue life is associated with cyclic stress limit level. At different shear angles，if stress level is the same，the fatigue life is substantially the same. If the stress value is the same，the greater the angle，the shorter fatigue life. (3) Reverse shear influences hugely the fatigue life of rock salt，with more than 90% decrease. (4) Salt rock fatigue crack formation is related with movement of dislocations squeeze. Crack growth is the result of alternating slippage for multiple slip systems. The dislocation-damage model is established，so that the damage can essentially reveal the destruction process of salt rock. The greater the fatigue damage results in more obvious decrease of the carrying capacity.

Key words： Salt rock compression-shear Dislocation Fatigue damage Reverse

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

http://www.rockmech.org/EN/Y2015/V34/I05/895

[15]	赵敬世. 位错理论基础[M]. 北京：国防工业出版社，1989. " target="_blank">
[1]	刘建锋，徐进，杨春和，侯正猛. 盐岩拉伸破坏力学特性的试验研究[J]. 岩土工程学报，2011，33(4)：580-586.(LIU Jianfeng，XU Jin，YANG Chunhe，HOU Zhengmeng. Mechanical characteristics of tensile failure of salt rock[J]. Chinese Journal of Geotechnical Engineering. 2011，33(4)：580-586.(in Chinese))
[4]	任松，白月明，姜德义，等. 周期荷载作用下盐岩声发射特征试验研究[J]. 岩土力学，2012，33(6)：1 613-1 618+1 639.(REN Song，BAI Yueming，JIANG Deyi，et al. Experimental research on acoustic emission property of salt rock under cyclic loading[J]. Rock and Soil Mechanics，2012，33(6)：1 613-1 618+1 639.(in Chinese)) " target="_blank">
[6]	任松，白月明，姜德义，等. 温度对盐岩疲劳特性影响的试验研究[J]. 岩石力学与工程学报，2012，9：1 839-1 845.(REN Song，BAI Yueming，JIANG Deyi，et al. Experimental study of temperature effect on fatigue property of salt rock[J]. Chinese Journal of Rock Mechanics and Engineering，2012，9：1 839-1 845.(in Chinese)) " target="_blank">
[8]	徐速超，冯夏庭，陈炳瑞. 矽卡岩单轴循环加卸载试验及声发射特性研究[J]. 岩土力学，2009，30(10)：2 929-2 934.(XU Suchao，FENG Xiating，CHEN Bingrui. Experimental study of skarn under uniaxial cyclic loadingand unloading test and acoustic emission characteristics[J]. Rock and Soil Mechanics，2009，30(10)：2 929- 2 934.(in Chinese)) " target="_blank">
[13]	李建兵，李建华，张超新，等. 用位错胞及正电子湮没寿命为参量的损伤演变律[J]. 华中科技大学学报(城市科学版). 2006，23(增2)：71-73.(LI Jianbing，LI Jianhua，ZHANG Chaoxin，et al. Damage Evolution Law Study by Micro-parameter of Dislocation Cell and Positron Annihilation Life[J]. J. of HUST.(Urban Science Edition)，2006，23(Supp.2)：71-73.(in Chinese)) " target="_blank">
[17]	杜正兴，温志勋，侯乃先，等. 考虑两种晶界的各向异性双晶和三晶体晶界附近弹塑性应力场分析[J]. 计算力学学报，2008，25(5)：627-633.(DU Zhengxing，WEN Zhixun，HOU Naixian，et al. Consider two double-crystal grain boundaries and anisotropic elastic- plastic stress field in the vicinity of three crystal grain boundary analysis[J]. Chinese Journal of Computational Mechanics，2008，25(5)：627-633.(in Chinese)) " target="_blank">
[21]	Rüdiger Kilian，Renée Heilbronner，Holger Stünitz. Quartz grain size reduction in a granitoid rock and the transition from dislocation to diffusion creep，Journal of Structural Geology[J]. Journal of Structural Geology，2011，33(8)：1 265-1 284. " target="_blank">
[25]	姜德义，陈结，任松，等. 盐岩单轴应变率效应与声发射特征试验研究[J]. 岩石力学与工程学报，2012，31(2)：1-11.(JIANG Deyi，CHEN Jie，REN Song，et al. Experimental study of strain rate effect and acoustic Emission characteristics of salt rock under uniaxial Compression[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(2)：1-11.(in Chinese)) " target="_blank">
[26]	纪文栋，杨春和，姚院峰，等. 应变加载速率对盐岩力学性能的影响[J]. 岩石力学与工程学报，2011，30(12)：2 507-2 513.(JI Wendong，YANG Chunhe，YAO Yuanfeng，et al. Effects of loading strain rate on mechanical performances of salt rock[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(12)：2 507-2 513.(in Chinese))
[24]	王军. 损伤力学的理论与应用[M]. 北京：科学出版社，1997. " target="_blank">
[9]	DING J，HALL R，BYRNE J. Effects of stress ratio and temperature on fatigue crack growth in a Ti-6Al-4V alloy. International Journal of Fatigue. 2005，27(10/11/12)：1 551-1 558 " target="_blank">
[14]	钱才富. 位错和位错偶沿单一滑移系从裂纹尖端的发射[J]. 金属学报1999，(5)：546-550.(QIAN Caifu . Dislocation and dislocation along a single slip system from crack tip emission[J]. Acta Metallurgica Sinica，1999，(5)：546-550.(in Chinese)) " target="_blank">
[18]	高英俊，卢成健，黄礼琳，等. 晶界位错运动与位错反应过程的晶体相场模拟[J]. 金属学报，2014，50(1)：110-120.(GAO Yingjun，LU Chengjian，HUANG Lilin，et al. Phase field crystal simulation of dislocation movement and reaction[J]. 2014，50(1)：110-120.(in Chinese))
[22]	TIMON F FLIERVOET，MARTYN R DRURY，PRAME N CHOPRA. Crystallographic preferred orientations and misorientations in some olivine rocks deformed by diffusion or dislocation creep[J]. Tectonophysics，1999，303，(1-4)：1-27. " target="_blank">
[3]	THOMS R L，GEHLE R M. A brief history of salt cavern use[C]// Proceedings of the 8th world salt Symposium.[S.L.]：Elsevier，2000：207-214. " target="_blank">
[7]	HAKAN Alkan. Percolation model for dilatancy-induced permeability of the excavation damaged zone in rock salt[J]. International Journal of Rock Mechanics & Mining Sciences，2008，46(2009)：716-724. " target="_blank">
[10]	BAGDE M N，PETROS V. Fatigue properties of intact sandstone samples subjected to dynamic uniaxial cyclical loading. International Journal of Rock Mechanics and Mining Sciences，2005，42(2)：237-250 " target="_blank">
[16]	庄茁，崔一男，高原，等. 亚微米尺度晶体反常规苏醒行为的离散位错研究进展[J]. 力学进展，2011，41(6)：647-667.(ZHUANG Zhuo，CUI Yinan，GAO Yuan，et al.. Progress discrete dislocation sub-micron scale crystals wake unconventional behavior[J]. Advances In Mechanics，2011，41(6)：647-667.(in Chinese))
[20]	钱才富，李慧芳，崔文勇. I型裂纹尖端塑性区和无位错区及其对裂纹扩展的影响[J]. 材料研究学报，2007，21(6)：599-603.(QIAN Caifu，LI Huifang，CUI Wenyong. Mode I crack tip plastic zone，dislocation-free zone and their effects on crack propagation[J]. Chinese journal of materials research，2007，21(6)：599-603.(in Chinese))
[27]	姜德义，范金洋，陈结，等. 应力因素下的盐岩卸荷扩容试验研究[J]. 岩土力学，2013，34(增1)：41-46.(JIANG Deyi，FAN Jinyang，CHEN Jie，et al. Test study of unloading capacity expansion characteristics of salt rock under stress factors[J]. Rock and Soil Mechanics，2013，34(S1)：41-46.(in Chinese)) " target="_blank">
[2]	郭印同，杨春和，付建军. 盐岩三轴卸荷力学特性试验研究[J]. 岩土力学，2012，33(3)：725-730+738.(GUO Yintong，YANG Chunhe，FU Jianjun. Experimental research on mechanical characteristics of salt rock under triaxial unloading test [J]. Rock and Soil Mechanics，2012，33(3)：725-730+738.(in Chinese)) " target="_blank">
[5]	YANG C H，LI Y P. Cosserat medium constitutive model for laminated salt rock numerical analysis of cavern stability in deep bedded salt rock formations[C]// Proceeding of 41st U.S. Rock Mechanics Symposium and 50th Anniversary.[S.L.]：Curran Associates，Inc. 2006：915-921. " target="_blank">
[11]	姜德义，范金洋，陈结，等. 围压卸载速率对盐岩扩容损伤影响研究[J]. 岩石力学与工程学报，2013，(增2)：3 154-3 159.(JIANG Deyi，FAN Jinyang，CHEN Jie，et al. Research on capacity expansion damage of the salt under the different rate of confining pressure unloading[J]. Chinese Journal of Rock Mechanics and Engineering. 2013，(Supp.2)：3 154-3 159.(in Chinese)) " target="_blank">
[12]	NASER A，Al-Shayea. Effects of testing methods and conditions on the elastic properties of limestone rock. Engineering Geology，2004，74(1/2)：139-156. " target="_blank">
[19]	李东升，杨德仁，朱爱平，等. 氮杂质对直拉单晶硅中位错的作用[J]. 半导体学报，2001，22(11)：1 401-1 405.(LI Dongsheng，YANG Deren，ZHU Aiping，et al. Nitrogen in Czochralski silicon impurities on the role of dislocations[J]. Chinese Journal of Semiconductors，2001，22(11)：1 401-1 405.(in Chinese)) " target="_blank">
[23]	Misha Bystricky，Florian Heidelbach，Steve Mackwell. Large-strain deformation and strain partitioning in polyphase rocks：Dislocation creep of olivine-magnesiowüstite aggregates[J]. Tectonophysics，2006，427，(1-4)：115-132. " target="_blank">
[28]	万志军，李学华，刘长友，等. 加载速率对岩石声发射活动的影响[J]. 辽宁工程技术大学学报，2001，20(4)：469-471.(WAN Zhijun，LI Xuehua，LIU Changyou，et al. Influence of loading velocity on the rock's acoustic emission activity[J]. Journal of Liaoning Technical University(Natural Science Edition)，2001，20(4)：469-471.(in Chinese)) " target="_blank">