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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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In this study, powder compaction of AZO (alumina doped zinc oxide) powder was performed with a MTS 810 test system using a cylindrical die having a diameter of 10mm. Pressure-density curves were measured based on the load cell and displacement of the punch. The AZO powder compacts with various densities were formed to investigate the mechanical properties such as fracture stress of the AZO powder as a function of the compact density. Two types of compression tests were conducted in order to estimate the fracture stress using different loading paths: a diameteral compression test and a uniaxial compression test. The pressure-density curves of the AZO powder were obtained and the fracture stress of the compacted powders with various densities was estimated. The results show that the compact pressure dramatically increases as the density increases. Based on the experimental results, calibration of the modified Drucker-Prager/Cap model of the AZO powder for use in FE simulations was developed.
목차
Abstract
1. 서론
2. Modified DPC model
3. Modified DPC 모델 구성
4. 결론
참고문헌
참고문헌 (9)
참고문헌 신청
1. [학술지(정기간행물)] - R. I. Borja / 1990 / Cam-Clay Plasticity, Part 1:Implicit Integration of Elasto-plastic Constitutive Relations / Comput. Meth. Appl. Mech. Eng 78 (1) : 49 ~ 72
2. [학술지(정기간행물)] - S. Shima / 1976 / Plasticity Theory for Poros Metals / Int. J. Mech. Sci 18 (6) : 285 ~ 291
3. [학술지(정기간행물)] - I. C. Sinka / 2003 / The Effect of Wall Friction in the Compaction of Pharmaceutical Tablets with Curved Faces: a Validation Study of the Drucker–Prager Cap Model / Powder Technol 133 (1) : 33 ~ 43
4. [학술지(정기간행물)] - C. Y. Wu / 2005 / Modelling the Mechanical Behaviour of Pharmaceutical Powders During Compaction / Powder Technol 152 (1) : 107 ~ 117
5. [학술지(정기간행물)] - C. Y. Wu / 2008 / Numerical and Experimental Investigation of Capping Mechanisms During Pharmaceutical Tablet Compaction / Powder Technol 181 (2) : 121 ~ 129
2. [학술지(정기간행물)] - S. Shima / 1976 / Plasticity Theory for Poros Metals / Int. J. Mech. Sci 18 (6) : 285 ~ 291
3. [학술지(정기간행물)] - I. C. Sinka / 2003 / The Effect of Wall Friction in the Compaction of Pharmaceutical Tablets with Curved Faces: a Validation Study of the Drucker–Prager Cap Model / Powder Technol 133 (1) : 33 ~ 43
4. [학술지(정기간행물)] - C. Y. Wu / 2005 / Modelling the Mechanical Behaviour of Pharmaceutical Powders During Compaction / Powder Technol 152 (1) : 107 ~ 117
5. [학술지(정기간행물)] - C. Y. Wu / 2008 / Numerical and Experimental Investigation of Capping Mechanisms During Pharmaceutical Tablet Compaction / Powder Technol 181 (2) : 121 ~ 129
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UCI(KEPA) : I410-ECN-0101-2014-551-000221586