Estimation of Residual Stress and Plastic Properties of a Material without Plastic Plateau by Using Continuous Spherical Indentation
| Autor: | Jian Ping Zhao, Zhan Yu Wang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering 02 engineering and technology 021001 nanoscience & nanotechnology Plateau (mathematics) Finite element simulation 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Residual stress Indentation General Materials Science Composite material 0210 nano-technology Dimensionless quantity |
| Zdroj: | Key Engineering Materials. 795:409-415 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.795.409 |
| Popis: | This paper presents a method to allow the measurement of residual stress (), yield strength () and strain hardening exponent () of metal materials through continuous spherical indentation test. Based on the analysis of finite element simulation results, a new fitting equation between the indentation response parameter and the material properties was given. The influence of friction on finite element model simulation was also discussed when the residual stress is included in the material. Only three load values are required at each different indentation depths, and the three unknown parameters (, and ) can be obtained through corresponding dimensionless functions. Finally, the validation of the method presented in this paper was verified by simulating the material (SUS304) with the known material parameters in the literature. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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