Deformation Behaviors of Materials during Nanoindentation Test and Simulation by Three-Dimensional Finite Element Analysis

Autor:	Cho Sang-bong, Yun Jon-do, Kim Ji-soo, Yang Hyeon-yun
Rok vydání:	2004
Předmět:	Materials science chemistry Aluminium Plastic materials chemistry.chemical_element General Materials Science Composite material Strain hardening exponent Deformation (engineering) Nanoindentation Penetration depth Elastic modulus Finite element method
Zdroj:	Korean Journal of Materials Research. 14:436~442-436~442
ISSN:	2287-7258 1225-0562
DOI:	10.3740/mrsk.2004.14.6.436
Popis:	【Elastic and plastic deformation behaviors of the high purity aluminum and the silica glass were studied using nanoindentation and finite element analysis(FEA) techniques. Berkovich- and cone-type indenters were used for the nanoindentation test. Deformation behaviors and nanoindent profiles of elastic, elastic-plastic or plastic materials were clearly visualized by FEA simulation. Effects of the penetration depth and strain hardening on the deformation behavior were examined. Pile-up and sink-in behaviors were studied by using FEA technique. Degree of pile-up or sink-in was found to be a function of the ratio of elastic modulus to yield strength of materials. FEA was found to be an effective method to study deformation behaviors of materials under nanoindentation, especially in the case when pile-up or sink-in phenomena occurred.】
Databáze:	OpenAIRE
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