Boundary element method for prediction of hardness of dentin from punch-nano-indentation test
Computer Methods and Programs in Biomedicine, cilt.86, sa.3, ss.227-231, 2007 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 86 Sayı: 3
- Basım Tarihi: 2007
- Doi Numarası: 10.1016/j.cmpb.2007.03.003
- Dergi Adı: Computer Methods and Programs in Biomedicine
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.227-231
- Anahtar Kelimeler: boundary element, plasticity, nano-indentation hardness
- Uşak Üniversitesi Adresli: Evet
Özet
In this paper, a quadratic boundary element formulation for prediction of hardness of dentin from punch-nano-indentation test is presented. BE contact formulation is given. The initial strain formulation and von Mises yield criteria are employed to cover plastic deformation. The dentin is assumed to be isotropic, homogenous and elastic-perfectly plastic material. The load versus displacement is obtained during loading-unloading sequence for different yield strength and elastic modulus. Hardness and equivalent residual stresses are plotted for different elastic modulus depending on yield strength. BE method is shown to be an alternative accurate computational tool for simulated nano-indentation tests. © 2007 Elsevier Ireland Ltd. All rights reserved.