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1,037 results on '"Kang, Guozheng"'

15. Fatigue Life-Prediction Models of NiTi SMAs

Author

Kang, Guozheng, Yu, Chao, Kan, Qianhua, Hull, Robert, Series Editor, Jagadish, Chennupati, Series Editor, Kawazoe, Yoshiyuki, Series Editor, Kruzic, Jamie, Series Editor, Osgood Jr., Richard, Series Editor, Parisi, Jürgen, Series Editor, Pohl, Udo W., Series Editor, Seong, Tae-Yeon, Series Editor, Uchida, Shin-ichi, Series Editor, Wang, Zhiming M., Series Editor, Kang, Guozheng, Yu, Chao, and Kan, Qianhua

Published
2023
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16. Crystal Plasticity-Based Constitutive Models of NiTi SMAs

Author

Kang, Guozheng, Yu, Chao, Kan, Qianhua, Hull, Robert, Series Editor, Jagadish, Chennupati, Series Editor, Kawazoe, Yoshiyuki, Series Editor, Kruzic, Jamie, Series Editor, Osgood Jr., Richard, Series Editor, Parisi, Jürgen, Series Editor, Pohl, Udo W., Series Editor, Seong, Tae-Yeon, Series Editor, Uchida, Shin-ichi, Series Editor, Wang, Zhiming M., Series Editor, Kang, Guozheng, Yu, Chao, and Kan, Qianhua

Published
2023
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17. Molecular Dynamics Simulations on Thermo-Mechanically Coupled Cyclic Deformation of NiTi SMAs

Author

Kang, Guozheng, Yu, Chao, Kan, Qianhua, Hull, Robert, Series Editor, Jagadish, Chennupati, Series Editor, Kawazoe, Yoshiyuki, Series Editor, Kruzic, Jamie, Series Editor, Osgood Jr., Richard, Series Editor, Parisi, Jürgen, Series Editor, Pohl, Udo W., Series Editor, Seong, Tae-Yeon, Series Editor, Uchida, Shin-ichi, Series Editor, Wang, Zhiming M., Series Editor, Kang, Guozheng, Yu, Chao, and Kan, Qianhua

Published
2023
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18. Experimental Observations on Thermo-Mechanically Coupled Cyclic Deformation and Fatigue Failure of NiTi SMAs

Author

Kang, Guozheng, Yu, Chao, Kan, Qianhua, Hull, Robert, Series Editor, Jagadish, Chennupati, Series Editor, Kawazoe, Yoshiyuki, Series Editor, Kruzic, Jamie, Series Editor, Osgood Jr., Richard, Series Editor, Parisi, Jürgen, Series Editor, Pohl, Udo W., Series Editor, Seong, Tae-Yeon, Series Editor, Uchida, Shin-ichi, Series Editor, Wang, Zhiming M., Series Editor, Kang, Guozheng, Yu, Chao, and Kan, Qianhua

Published
2023
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19. Phase-Field Simulations on Thermo-Mechanically Coupled Cyclic Deformation of NiTi SMAs

Author

Kang, Guozheng, Yu, Chao, Kan, Qianhua, Hull, Robert, Series Editor, Jagadish, Chennupati, Series Editor, Kawazoe, Yoshiyuki, Series Editor, Kruzic, Jamie, Series Editor, Osgood Jr., Richard, Series Editor, Parisi, Jürgen, Series Editor, Pohl, Udo W., Series Editor, Seong, Tae-Yeon, Series Editor, Uchida, Shin-ichi, Series Editor, Wang, Zhiming M., Series Editor, Kang, Guozheng, Yu, Chao, and Kan, Qianhua

Published
2023
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20. Phenomenological Constitutive Models of NiTi SMAs

Author

Kang, Guozheng, Yu, Chao, Kan, Qianhua, Hull, Robert, Series Editor, Jagadish, Chennupati, Series Editor, Kawazoe, Yoshiyuki, Series Editor, Kruzic, Jamie, Series Editor, Osgood Jr., Richard, Series Editor, Parisi, Jürgen, Series Editor, Pohl, Udo W., Series Editor, Seong, Tae-Yeon, Series Editor, Uchida, Shin-ichi, Series Editor, Wang, Zhiming M., Series Editor, Kang, Guozheng, Yu, Chao, and Kan, Qianhua

Published
2023
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21. Fundamentals of Shape Memory Alloys (SMAs)

Author

Kang, Guozheng, Yu, Chao, Kan, Qianhua, Hull, Robert, Series Editor, Jagadish, Chennupati, Series Editor, Kawazoe, Yoshiyuki, Series Editor, Kruzic, Jamie, Series Editor, Osgood Jr., Richard, Series Editor, Parisi, Jürgen, Series Editor, Pohl, Udo W., Series Editor, Seong, Tae-Yeon, Series Editor, Uchida, Shin-ichi, Series Editor, Wang, Zhiming M., Series Editor, Kang, Guozheng, Yu, Chao, and Kan, Qianhua

Published
2023
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46. Constitutive modeling of the tension-compression behavior of gradient structured materials

Author

Zhao, Jianfeng, Lu, Xiaochong, Liu, Jinling, Bao, Chen, Kang, Guozheng, Zaiser, Michael, and Zhang, Xu

Subjects
Condensed Matter - Materials Science
Abstract

Gradient structured (GS) metals processed by severe plastic deformation techniques can be designed to achieve simultaneously high strength and high ductility. Significant kinematic hardening is key to their excellent strain hardening capacity which results in a favorable strength-ductility combination. Unfortunately, no constitutive model has been established to simulate and analyze the characteristic kinematic hardening behavior of GS metal to understand the relationship between their microstructure and macroscopic response. In this work, we developed a deformation-mechanismbased strain gradient plasticity model considering the plasticity heterogeneities from the grain to the sample scale. A back stress model, which accounts for the dependency of dislocation pile-ups on grain size, is established to describe the cyclic deformation properties of GS materials. The established model unified the geometrically necessary dislocations accommodating internal plasticity heterogeneities, the resulting back stress and reversible dislocations during reverse loading into a strain gradient plasticity framework, without introducing excessive numbers of independent material parameters. A finite element implementation of the model quantitatively predicts the uniaxial tensile and tensile-compressive responses of a GS copper bar as well as of a reference sample with homogeneous grain size. It is found that GS copper exhibits enhanced kinematic hardening which results mainly from fine grains in the GS layer and contributes to the considerable ductility of the GS material. The model allows to investigate the mechanical response and optimize the properties of materials with various types of spatially heterogeneous grain microstructures.

Published
2020

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