各向异性脆性材料动态断裂的实验研究

doi:10.13722/j.cnki.jrme.2018.0558

摘要
图/表
参考文献(46)
相关文章 (15)

全文: PDF (478 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要

通过引入了正交各向异性动态裂纹尖端应力场，结合焦散线方法理论，得到正交各向异性材料的应力强度因子和裂纹长度随时间的变化以及材料的动态断裂韧度。通过选用经过压缩变形后呈现明显的各向异性的聚碳酸酯(PC)，研究了不同压缩变形处理下PC材料的动态断裂性能，验证实验方法的可靠性。实验结果表明，对于相同压缩变形的试件，沿着塑性压缩方向的断裂韧度大于垂直于塑性压缩方向的各向同性面内的断裂韧度；随着压缩变形的增加，材料断裂韧度增强。该方法适用于非透明材料，可以推广到各向异性岩石等脆性材料的动态断裂问题研究。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	高桂云1
	励争2
	NEGAHBAN M3

关键词 ：断裂力学, 焦散线方法, 各向异性, 断裂韧度, 动态破裂

Abstract：

Here the dynamic method of caustics was used to study the stress dynamic fracture behavior of anisotropic brittle materials by considering anisotropic stress distribution near the crack tip. The stress intensity factor and crack length versus time，and the fracture toughness were obtained. Results show that the fracture toughness of the specimens after plastic compression are different from that uncompressed specimens. And the fracture toughness of specimens transversely cut and axial crack propagation(TA) were larger than that transversely cut and transversely crack propagation(TT). The fracture toughness increases with compressive strain increases. The reflective method of caustics can be applied to non-transparent materials，which could be extended to the dynamic fracture analysis of anisotropic brittle materials such as rocks.

Key words： fracture mechanics the method of caustics anisotropy fracture toughness dynamic fracture

引用本文:

高桂云1，励争2，NEGAHBAN M3. 各向异性脆性材料动态断裂的实验研究[J]. 岩石力学与工程学报, 2018, 37(S2): 3979-3989.
GAO Guiyun1，LI Zheng2，NEGAHBAN M3. Experimental study of the dynamic fracture behaviors of anisotropic brittle materials. , 2018, 37(S2): 3979-3989.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2018.0558 或 https://rockmech.whrsm.ac.cn/CN/Y2018/V37/IS2/3979

[1]	SCHOENBERG M，SAYERS C. Seismic anisotropy of fractured rock[J]. Geophysics，1995，60(1)：204-211.
[2]	MCLAMORE R，GRAY K E. The mechanical behavior of anisotropic sedimentary rocks[J]. Journal of Manufacturing Science and Engineering，1967，89(1)：62-73.
[3]	CLAESSONA J，BOHLOLIB B. Brazilian test：stress field and tensile strength of anisotropic rocks using an analytical solution[J]. International Journal of Rock Mechanics and Mining Sciences，2002，39(8)：991-1 004.
[4]	GATELIER N，PELLET F，LORET B. Mechanical damage of an anisotropic porous rock in cyclic triaxial tests[J]. International Journal of Rock Mechanics and Mining Sciences，2002，39(3)：335-354.
[5]	KIRBY G C，MAZUR C J. Fracture toughness testing of coal[J]. Experimental Mechanics，1985，16(5)：161-167
[6]	ZIPF R K，BIENIAWSKI Z T. Mixed-mode fracture-toughness testing of coal[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1990，27(6)：479-493.
[7]	CHEN C H，CHEN C S，WU J H. Fracture toughness analysis on cracked ring disks of anisotropic rock[J]. Rock Mechanics and Rock Engineering，2008，41(4)：539-562.
[8]	LIM I L，JOHNSTON I W，CHOI S K，et al. Fracture testing of a soft rock with semi-circular specimens under three-point bending. II：Mixed-mode[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1994，31(3)：199-212.
[9]	KURUPPU M. Fracture toughness measurement using chevron notched semi-circular bend specimen[J]. International Journal of Fracture，1997，86(4)：L33-L38.
[10]	GUO H，AZIZ N，SCHMIDT L. Rock fracture-toughness determination by the Brazilian test[J]. Engineering Geology，1993，33(3)：177-188.
[11]	FOWELL R J，HUDSON J A，XU C，et al. Suggested method for determining mode-I fracture-toughness using cracked chevron-notched Brazilian Disc (ccnbd) Specimens[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1995，32(1)：57-64.
[12]	CHANG S-H，LEE C-I，JEON S. Measurement of rock fracture toughness under modes I and II and mixed-mode conditions by using disc- type specimens[J]. Engineering Geology，2002，66(1-2)：79-97.
[13]	FOWELL R J，XU C. The use of the cracked Brazilian disc geometry for rock fracture investigations[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1994，31(6)：571-579.
[14]	OUCHTERLONY F. Suggested methods for determining the fracture toughness of rock[J]. International Journal of Rock Mechanics and Mining Sciences andGeomechanics Abstracts，1988，25(2)：71-96.
[15]	FOWELL R J，XU C，DOWD P A. An update on the fracture toughness testing methods related to the cracked chevron-notched Brazilian disk (CCNBD) specimen[J]. Pure and Applied Geophysics，2006，163(5-6)：1 047-1 057.
[16]	KURUPPU M D，OBARA Y，AYATOLLAHI M R，et al. ISRM-Suggested method for determining the mode I static fracture toughness using semi-circular bend specimen[J]. Rock Mechanics and Rock Engineering，2014，47(1)：267-274.
[17]	KE C C，CHEN C S，TU C H. Determination of fracture toughness of anisotropic rocks by boundary element method[J]. Rock Mechanics and Rock Engineering，2008，41(4)：509-538.
[18]	LIBATSKII L L，KOVCHIK S E. Fracture of discs containing cracks[J]. Soviet Materials Science，1968，3(4)：334-339.
[19]	ISIDA M. Analysis of stress intensity factors for the tension of a centrally cracked strip with stiffened edges[J]. Engineering Fracture Mechanics，1973，5(3)：647-665.
[20]	BOWIE O L，NEAL D M. A modified mapping-collocation technique for accurate calculation of stress intensity factors[J]. International Journal of Fracture Mechanics，1970，6(2)：199-206.
[21]	CHEN C S，PAN E，AMADEI B. Fracture mechanics analysis of cracked discs of anisotropic rock using the boundary element method[J]. International Journal of Rock Mechanics and Mining Sciences，1998，35(2)：195-218.
[22]	HUANG Y I，LIU C，STOUT M G. A Brazilian disk for measuring fracture toughness of orthotropic materials[J]. Acta Materialia，1996，44(3)：1 223-1 232.
[23]	ASTM. Standard test method for linear-elastic plane-strain fracture toughness KIc of metallic materials[S]. West Conshohocken：ASTM International，2012.
[24]	NASSERI M H B，MOHANTY B. Fracture toughness anisotropy in granitic rocks[J]. International Journal of Rock Mechanics and Mining Sciences，2008，45(2)：167-193.
[25]	NASSERI M，MOHANTY B，YOUNG R. Fracture toughness measurements and acoustic emission activity in brittle rocks[J]. Pure and Applied Geophysics，2006，163(5)：917-945.
[26]	NASSERI M，GRASSELLI G，MOHANTY B. Fracture toughness and fracture roughness in anisotropic granitic rocks[J]. Rock Mechanics and Rock Engineering，2010，43(4)：403-415.
[27]	FUNATSU T，TAKASHI T，KURUPPU M. Effect of Anisotropy on Fracture Toughness of Sandstone by SCB Specimen[C]// ISRM Regional Symposium—the 7th Asian Rock Mechanics Symposium.Seoul，Korea：International Society for Rock Mechanics and Rock Engineering，2012：413-418.
[28]	衡帅，杨春和，郭印同，等. 层理对页岩水力裂缝扩展的影响研究[J]. 岩石力学与工程学报，2015，34(2)：228-237.(HENG Shuai，YANG Chunhe，GUO Yintong，et al. Influence of bedding planes on hydraulic fracture propagation in shale formation[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(2)：228-237.(in Chinese))
[29]	CHANDLER M R，MEREDITH P G，BRANTUT N，et al. Fracture toughness anisotropy in shale[J]. Journal of Geophysical Research：Solid Earth，2016，121(3)：1 706-1 729.
[30]	GOLDSMITH W，SACKMAN J L，EWERTS C. Static and dynamic fracture strength of Barre granite[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1976，13(11)：303-309.
[31]	ZHOU Y X，XIA K，LI X B，et al. Suggested methods for determining the dynamic strength parameters and mode-I fracture toughness of rock materials[J]. International Journal of Rock Mechanics and Mining Sciences，2012，49(1)：105-112.
[32]	DAI F，XIA K W. Laboratory measurements of the rate dependence of the fracture toughness anisotropy of Barre granite[J]. International Journal of Rock Mechanics and Mining Sciences，2013，60(0)：57-65.
[33]	GAO G Y，LI Z，XU J. Optical method of caustics applied in viscoelastic fracture analysis[J]. Optics and Lasers in Engineering，2011，49(5)：632-639.
[34]	UNGER D J. Perfectly plastic caustics for the opening mode of fracture[J]. Theoretical and Applied Fracture Mechanics，2005，44(1)：82-94.
[35]	高桂云，周洁，励争. 脆性材料裂纹与损伤相互作用的试验研究[J]. 岩石力学与工程学报，2017，36(11)：2 650-2 661.(GAO Guiyun，ZHOU Jie，LI Zheng. Experimental study on the interaction of crack and defects of brittle materials under dynamic loading[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(11)：2 650-2 661.(in Chinese))
[36]	LEE K H，HAWONG J S，CHOI S H. Dynamic stress intensity factors KI，KIIand dynamic crack propagation characteristics of orthotropic material[J]. Engineering Fracture Mechanics，1996，53(1)：119-140.
[37]	GONG K，LI Z. Caustics method in dynamic fracture problem of orthotropic materials[J]. Optics and Lasers in Engineering，2008，46(8)：614-619.
[38]	GONG K，QIN W，LI Z，et al. Dynamic fracture of mode I crack in orthotropic composites studied by caustic method[J]. Key Engineering Materials，2006，326-328：1 003-1 006.
[39]	YAO X F，ZHAO H P，YEH H Y. Dynamic caustic analysis of propagating mode II cracks in transversely isotropic material[J]. Journal of Reinforced Plastics and Composites，2005，24(6)：657-667.
[40]	GOEL A，STRABALA K，NEGAHBAN M，et al. Modeling the development of elastic anisotropy as a result of plastic flow for glassy polycarbonate[J]. Polymer Engineering and Science，2009，49(10)：1 951-1 959.
[41]	WARD I M，SWEENEY J. REVIEW ARTICLES: The mechanical properties of solid polymers[J]. British Journal of Applied Physics，1966，17(1)：3-32.
[42]	KALTHOFF J F. Shadow optical method of caustics. In：Handbook on experimental mechanics[M].Edited by KOBAYASHI A.S. Englewood Cliffs(NJ)：Prentice Hall，1987：430-500.
[43]	STRABALA K，MEAGHER S，LANDAIS C，et al. Anisotropic loss of toughness with physical aging of work toughened polycarbonate[J]. Polymer Engineering and Science，2014，54(4)：794-804.
[44]	ASTM Internationa. D6110-10，A. Standard test method for determining the Charpy impact resistance of notched specimens of plastics[S]. West Conshohocken：ASTM Internationa，2010.
[45]	FUNATSU T，SETO M，SHIMADA H，et al. Combined effects of increasing temperature and confining pressure on the fracture toughness of clay bearing rocks[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(6)：927-938.
[46]	DAI F，XIA K，NASSERI M. Micromechanical model for the rate dependence of the fracture toughness anisotropy of Barre granite[J]. International Journal of Rock Mechanics and Mining Sciences，2013，63(1)：113-121.