分析了碳管纳米弹簧在横向、轴向载荷作用下的变形,给出了碳管纳米弹簧的横向刚度Kr与轴向刚度Kl的表达式.为验证Kr、Kl公式的有效性,还将-碳管纳米弹簧Kr、Kl的理论解和相应的试验结果、有限元结果进行了比较.结果发现,理论解和试验结果、有限元结果均较为接近.本文碳管纳米弹簧的横向刚度与轴向刚度表达式对人们进一步研究碳管纳米弹簧的力学特性具有重要的参考价值.
参考文献
| [1] | 张晓宇,黄再兴.连续介质理论在研究碳纳米管力学性能中的应用进展[J].机械强度,2005(03):324-330. |
| [2] | Haijun Shen .MD simulations on the melting and compressian of C,SiC and Si nanotubes[J].Journal of Materials Science,2007,42(15):6382-6387. |
| [3] | Rueckes T;Kim K;Joselevich E et al.Carbon nanotube-based nonvolatile random access memory for molecular computing[J].Science,2000,289(5476):94-97. |
| [4] | Henk W C;Postma T T;Yao Z et al.Carbon nanotube singleelectron transistors at room temperature[J].Science,2001,293(5527):76-79. |
| [5] | 沈海军,穆先才."Y"形、竹节形与直纳米碳管拉伸力学特性的有限元分析[J].材料科学与工程学报,2005(03):321-324. |
| [6] | Treacy M J;Ebbesen T W;Gibson J M .Exceptionally high Young's modulus observed for individual nanotubes[J].Nature,1996,381(6548):678-680. |
| [7] | 沈海军,姚卫星,史友进.纳米碳管在HyperChem中的自动生成及其力学性能探究[J].计算机与应用化学,2004(03):485-488. |
| [8] | Menon M;Srivastava D;NASA AMES RES CTR NAS SYST DIV MRJ MOFFETT FIELD CA 94035. .Carbon nanotube ''T junctions'': Nanoscale metal-semiconductor-metal contact devices[J].Physical review letters,1997(22):4453-4456. |
| [9] | Chico L;Crespi V H;Benedict L X .Pure carbon nanotube device:nanotube heterojunction[J].Physical Review Letters,1996,76:971-974. |
| [10] | Carroll DL;Redlich P;Ajayan PM;Charlier JC;Blase X;DeVita A;Car R;CLEMSON UNIV DEPT PHYS & ASTRON CLEMSON SC 29634.;RENSSELAER POLYTECH INST DEPT MAT SCI & ENGN TROY NY 12180.;UNIV CATHOLIQUE LOUVAIN UNITE PCPM B-1348 LOUVAIN BELGIUM. .Electronic structure and localized states at carbon nanotube tips[J].Physical review letters,1997(14):2811-2814. |
| [11] | Volodin A.;Seynaeve E.;Van Haesendonck C.;Fonseca A.;Nagy JB.;Ahlskog M. .Imaging the elastic properties of coiled carbon nanotubes with atomic force microscopy[J].Physical review letters,2000(15):3342-3345. |
| [12] | Mark A. Poggi;Jeffrey S. Boyles;Lawrence A. Bottomley;Andrew W. McFarland;Jonathan S. Colton;Cattien V. Nguyen;Ramsey M. Stevens;Peter T. Lillehei .Measuring the Compression of a Carbon Nanospring[J].Nano letters,2004(6):1009-1016. |
| [13] | Yaobson B I;Brabec C J;Bernholc J .Nanomechanics of carbon tubes:Instabilities beyond linear response[J].Physical Review Letters,1996,76(14):2511-2514. |
| [14] | 胡仁喜.ANSYS8 2机械设计高级应用实例[M].北京:机械工业出版社,2005 |
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