Jun Wang
Chinese Academy of Sciences
29 Papers
164 Citations
Jun Wang is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Wurtzite crystal structure & Nanowire. The author has an hindex of 11, co-authored 26 publications. Previous affiliations of Jun Wang include City University of Hong Kong & University of Hong Kong.
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Papers
Ductile fracture characterization with an anisotropic continuum damage theory
C.L. Chow,Jun Wang +1 more
TL;DR: In this paper, the authors investigated the effect of the rolling induced material anisotropy on the fracture load of center-cracked tension specimens made of thin aluminium alloy and found that there is approximately an 8.8% difference in the measured fracture loads due to the effect on the rolling process, although the difference is not considered significant.
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Novel mechanical behavior of ZnO nanorods
TL;DR: In this paper, the effects of nanorod size and temperature on the phase transformation and associated mechanical behavior were analyzed, and it was found that as size is increased from 19.5 to 45.5 angstrom, the critical stress for nucleation of the transformation decreases by 25% from 21.90 to 16.50 GPa and the elastic moduli of the WZ- and BCT-4-structured nanorods decrease by 24% (from 299.49 to 227.51 GPa).
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Wurtzite-to-tetragonal structure phase transformation and size effect in ZnO nanorods
TL;DR: In this paper, the deformation of [0001]-oriented ZnO nanorods with hexagonal cross sections under uniaxial tensile loading is analyzed through molecular statistical thermodynamics simulations.
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Effects of oxygen vacancies on polarization stability of barium titanate
TL;DR: In this article, the authors used molecular dynamics simulations to show that the increase of coercive and saturated electric fields is due to the difficulty to switch local polarization near an oxygen vacancy, and so that a ferroelectric device has to sustain the rising consumption of energy.
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On crack initiation angle of mixed mode ductile fracture with continuum damage mechanics
C.L. Chow,Jun Wang +1 more
TL;DR: In this paper, two fracture criteria are proposed for predicting the crack initiation angle in mixed mode ductile fracture based on the theory of continuum damage mechanics, respectively from the postulates that 1. (1) a crack propagates at the direction where the ratio of the effective damage equivalent stress and the effective plastic equivalent stress reaches its maximum or Max [C(θ) ] for which C = \ gs d /gs p, 2.
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