標題: Molecular dynamics analysis of effects of velocity and loading on the nanoindentation
作者: Fang, TH
Jian, SR
Chuu, DS
電子物理學系
Department of Electrophysics
關鍵字: molecular dynamics;nanoindentation;Young's modulus;hardness;contact stress strain
公開日期: 15-Nov-2002
摘要: Three-dimensional molecular dynamics (MD) simulation is used to investigate the atomistic mechanism of nanoindentation process under various indentation loads and velocities that occur when a diamond tip interacts with the copper thin film. In this study, the model utilizes the Morse potential function to simulate interatomic forces between the specimen and tip. The results show that both Young's modulus and hardness increase up to a critical value and decrease there after for the indentation velocities, but decrease as the indentation loads increase. In additional, the contact stress-strain relationship is shown to be important.
URI: http://dx.doi.org/10.1143/JJAP.41.L1328
http://hdl.handle.net/11536/28383
ISSN: 0021-4922
DOI: 10.1143/JJAP.41.L1328
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS
Volume: 41
Issue: 11B
起始頁: L1328
結束頁: L1331
Appears in Collections:Articles


Files in This Item:

  1. 000182826200017.pdf