利用石墨烯进行高地应力测量的仿真研究
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摘要
采用高性能的石墨烯压力传感器进行地应力测量研究。利用COMSOL软件对高应力作用下的石墨烯薄膜进行模拟分析,将模拟结果与不同理论计算结果进行对比,验证未考虑石墨烯薄膜破坏时COMSOL模拟结果的可靠性。用COMSOL软件分析单层和多层石墨烯薄膜在高应力作用下的变形及受力特性,讨论石墨烯薄膜是否破坏,并将未破坏阶段内的模拟结果与理论结果进行对比,验证对石墨烯薄膜进行模拟分析的可靠性。通过研究石墨烯薄膜在高应力条件下的有效性,为深部高地应力测量提供一种新的方法。
High performance graphene pressure sensor is adopted to measure the in-situ stress. The COMSOL software is used to simulate and analyze on graphene membrane under high-stress,and the simulation results are compared with results calculated by different theories to verify the reliability of COMSOL simulation results without considering the destruction of graphene membrane. Then the deformation and mechanical properties of single and multi layers of graphene membrane under high-stress are analyzed by COMSOL software,and discuss whether graphene membrane is failed,and simulation and theoretical results are compared in unbroken stage to verify the reliability of the simulation analysis of graphene membrane. By researching on validity of graphene membrane under high stress conditions,it provides a new method for measuring deep high in-situ stress.
High performance graphene pressure sensor is adopted to measure the in-situ stress. The COMSOL software is used to simulate and analyze on graphene membrane under high-stress,and the simulation results are compared with results calculated by different theories to verify the reliability of COMSOL simulation results without considering the destruction of graphene membrane. Then the deformation and mechanical properties of single and multi layers of graphene membrane under high-stress are analyzed by COMSOL software,and discuss whether graphene membrane is failed,and simulation and theoretical results are compared in unbroken stage to verify the reliability of the simulation analysis of graphene membrane. By researching on validity of graphene membrane under high stress conditions,it provides a new method for measuring deep high in-situ stress.
引文
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[18] BAE S H,LEE Y,SHARMA B K,et al. Graphene-based transparent strain sensor[J]. Carbon,2013,51(1):236-242.
[2] CORNET F H,VALETTE B. In-situ stress determination from hydraulic injection test data[J]. Journal of Geophysical Research Solid Earth,1984,89(B13):11527-11537.
[3]王成虎,邢博瑞.原生裂隙水压致裂原地应力测量的理论与实践新进展[J].岩土力学,2017,38(5):1289-1297.
[4]李远,乔兰,孙歆硕.关于影响空心包体应变计地应力测量精度若干因素的讨论[J].岩石力学与工程学报,2006,25(10):2140-2144.
[5] KS N,AK G,SV M,et al. Electric field effect in atomically thin carbon films[J]. Science,2004,306(5696):666-669.
[6] JIANG L L,XIONG L U. The research progress of graphene synthesis methods[J]. Journal of Functional Materials,2012,42(23):3185-3189.
[7] KARMAN T Von. Festigkeitsprobleme in maschinenbau[J].Encyklopdie der Mathematischen Wissenschaften,1910(4):311-385.
[8] CHIEN W Z. Large deflection of a circular clamped plate under uniform pressure[J]. Acta Physica Sinica,1947,7(2):102-107.
[9]徐芝纶.弹性力学[M].北京:高等教育出版社,2006:157-160.
[10] BEAMS J W. The structure and properties of thin film[M]. New York:John Wiley and Sons,1959.
[11] MA J,JIN W,HO H L,et al. High-sensitivity fiber-tip pressure sensor with graphene diaphragm[J]. Optics Letters,2012,37(13):2493-2495.
[12] KOENIG S P,BODDETI N G,DUNN M L,et al. Ultrastrong adhesion of graphene membranes[J]. Nature Nanotechnology,2011,6(9):543-546.
[13] BUNCH J S,VERBRIDGS S S,ALDEN J S,et al. Impermeable atomic membranes from graphene sheets[J]. Nano Letters,2008,8(8):2458-2462.
[14] HUANG M,PASCAL T A,KIM H,et al. Electronic-mechanical coupling in graphene from in situ nanoindentation experiments and multiscale atomistic simulations[J]. Nano Letters,2011,11(3):1241-1246.
[15] SMITH A D,NIKLAUS F,PAUSSA A,et al. Electromechanical piezoresistive sensing in suspended graphene membranes[J].Nano Letters,2013,13(7):3237-3242.
[16] FU X W,LIAO Z M,ZHOU J X,et al. Strain dependent resistance in chemical vapor deposition grown grapheme[J]. Applied Physics Letters,2011,99(21):213107.
[17] LEE Y,BAE S,JANG H,et al. Wafer-scale synthesis and transfer of graphene films[J]. Nano Letters,2010,10(2):490-493.
[18] BAE S H,LEE Y,SHARMA B K,et al. Graphene-based transparent strain sensor[J]. Carbon,2013,51(1):236-242.