基于能量方法,采用量纲分析法和Ⅱ定理,分别推导了压痕功、压痕硬度与压痕参数和材料特性之间的无量纲函数;通过有限元仿真分析,建立了无量纲压痕硬度和压痕功之间的线性关系;根据卸载斜率和接触面积之间的线性关系,建立了压痕硬度和弹性模量的解析模型,再结合压痕的载荷-位移曲线,就可以计算得到材料的弹性模量和压痕硬度.结果表明:此方法能比较快速准确地计算出弹性模量和压痕硬度.
参考文献
| [1] | 黎明,温诗铸.纳米压痕技术理论基础[J].机械工程学报,2003(03):142-145. |
| [2] | 刘扬 .基于纳米压痕技术和有限元仿真的材料塑性性能分析[D].武汉理工大学,2003. |
| [3] | 刘琦 .基于压痕功的微纳米表层硬度检测技术研究[D].哈尔滨工业大学,2010. |
| [4] | M. DAO;N. CHOLLACOOP;K. J. VAN VLIET .COMPUTATIONAL MODELING OF THE FORWARD AND REVERSE PROBLEMS IN INSTRUMENTED SHARP INDENTATION[J].Acta materialia,2001(19):3899-3918. |
| [5] | Troyon M;Huang L .Critical examination of the two-slope method in nanoindentation[J].Journal of Materials Research,2005(8):2194-2198. |
| [6] | Giannakopoulos AE;Suresh S .Determination of elastoplastic properties by instrumented sharp indentation[J].Scripta materialia,1999(10):1191-1198. |
| [7] | Manhong Zhao;Nagahisa Ogasawara;Norimasa Chiba .A new approach to measure the elastic-plastic properties of bulk materials using spherical indentation[J].Acta materialia,2006(1):23-32. |
| [8] | Nagahisa Ogasawara;Norimasa Chiba;Xi Chen .A simple framework of spherical indentation for measuring elastoplastic properties[J].Mechanics of materials,2009(9):982-988. |
| [9] | Wangyang Ni;Yang-Tse Cheng;Che-Min Cheng .An energy-based method for analyzing instrumented spherical indentation experiments[J].Journal of Materials Research,2004(1):149-157. |
| [10] | Yang-Tse Cheng;Che-Min Cheng .Relationships between hardness, elastic modulus, and the work of indentation[J].Applied physics letters,1998(1/6):614-616. |
| [11] | Troyon M;Lafaye S .About the importance of introducing a correction factor in the Sneddon relationship for nanoindentation measurements[J].Philosophical magazine: structure and properties of condensed matter,2006(33/35):5299-5307. |
| [12] | Gao XL;Jing XN;Subhash G .Two new expanding cavity models for indentation deformations of elastic strain-hardening materials[J].International Journal of Solids and Structures,2006(7/8):2193-2208. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%