Zhihua Wang
Taiyuan University of Technology
Ultimate tensile strengthAmorphous metalFinite element methodDeformation (engineering)Strain rateComposite materialMetallurgyMaterials scienceDynamic loadingSandwich panelAlloyMetal foamProjectileAluminiumMetalStructural engineeringImpulse (physics)PlasticityRelative densitySandwich-structured compositeStress (mechanics)
249Publications
34H-index
3,726Citations
Publications 243
Newest
#1Z.M. Jiao (TUT: Taiyuan University of Technology)H-Index: 11
#2Kuo Li (TUT: Taiyuan University of Technology)
Last. Zhihua Wang (TUT: Taiyuan University of Technology)H-Index: 34
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Abstract A novel transformation-induced plasticity-reinforced metallic glass matrix composite, Ti40Ni38Ce2Cu20, with face-centered cubic B2 phase and monoclinic B19′ phase as well as amorphous phase, exhibits extensive strain hardening and high compression strength upon quasi-static and dynamic loadings. Large difference in toughness accounts for the blocking effect of crystalline phase and excellent plasticity in low strain rate regime, while similar toughness between crystalline phase and glas...
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#1Y.S. Luo (TUT: Taiyuan University of Technology)
#2Zhihua Wang (TUT: Taiyuan University of Technology)H-Index: 34
Last. J. W. Qiao (TUT: Taiyuan University of Technology)H-Index: 1
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A theory, bridging the free-volume and shear-transformation zone concepts through mean field theory, is established to predict the failure threshold of bulk metallic glasses (BMGs), and the physical mechanism of slip is investigated. A linear relation between the increment of free-volume and strain rate at small time intervals is found to describe inhomogeneous flow. The room-temperature theoretical failure threshold, S m a x, follows a universal material-dependent criterion S m a x ∼ T g η, whe...
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#1Kuo Li (TUT: Taiyuan University of Technology)
#2Zhiming Jiao (TUT: Taiyuan University of Technology)
Last. Zhihua Wang (TUT: Taiyuan University of Technology)H-Index: 34
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Abstract An in-situ Ti-based metallic glass matrix composite, Ti43Zr32Ni6Ta5Be14, presents strain hardening and plastic flow upon dynamic compression. The strain hardening is mainly attributed to the competition between the dislocation mechanism within the crystalline dendrites and the thermal and structural softening mechanisms within the glass matrix. The plasticity of the composite is semi-quantitatively analyzed by the difference in shear band toughness between the glass matrix and crystalli...
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#1H.J. Yang (TUT: Taiyuan University of Technology)H-Index: 3
#2Jie Zhang (TUT: Taiyuan University of Technology)H-Index: 4
Last. Qingming Li (University of Manchester)H-Index: 38
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A study on the resistance of rigid projectiles penetrating into semi-infinite concrete targets is performed in this paper. Experimental data are analyzed to examine the penetration resistance during various stages of the penetration process. A numerical tool using AUTODYN hydrocode is applied in the study. The numerical results on both deceleration-time history and depth of penetration of projectiles are in good agreement with experimental data, which demonstrate the feasibility of the numerical...
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#1Liu Ruyi (TUT: Taiyuan University of Technology)
#2Shuo Yuan (TUT: Taiyuan University of Technology)H-Index: 6
Last. Yucheng Wu (TUT: Taiyuan University of Technology)H-Index: 66
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Abstract Titanium and titanium alloys have been restricted in tribology-related field, because of their disadvantages, such as low surface hardness, high friction coefficient and poor wear resistance. Various surface modification techniques have been applied to improve their deficiencies. As a new technology of severe surface plastic deformation, ultrasonic nanocrystal surface modification (UNSM) technique has been widely used to realize the surface treatment of various materials, and also has a...
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#1Jie ZhangH-Index: 1
#2Zhihua WangH-Index: 34
Last. Xuefeng ShuH-Index: 1
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#1Qingqing Chen (TUT: Taiyuan University of Technology)H-Index: 1
#2Yuhang Zhang (TUT: Taiyuan University of Technology)H-Index: 3
Last. Zhihua Wang (TUT: Taiyuan University of Technology)H-Index: 34
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The mechanical properties and fracture behaviour of concretes under different triaxial stress states were investigated based on a 3D mesoscale model. The quasistatic triaxial loadings, namely, compression–compression–compression (C–C–C), compression–tension–tension (C–T–T) and compression–compression–tension (C–C–T), were simulated using an implicit solver. The mesoscopic modelling with good robustness gave reliable and detailed damage evolution processes under different triaxial stress states. ...
1 CitationsSource
#1T.X. Bai (TUT: Taiyuan University of Technology)
#2T.W. Zhang (TUT: Taiyuan University of Technology)H-Index: 6
Last. Zhihua Wang (TUT: Taiyuan University of Technology)H-Index: 34
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#1Lintao Li (TUT: Taiyuan University of Technology)H-Index: 1
#2Tao Jin (TUT: Taiyuan University of Technology)H-Index: 8
Last. Wei MaH-Index: 2
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Titanium Ti6Al4V alloy is a superior material that has extremely high strength, hardness and good anti-corrosion resistance. Dynamic shear-compression experiments were carried out on the alloy to investigate the micro-mechanisms of adiabatic shear banding (ASB) formation. The split Hopkinson pressure bar (SHPB) setup were used for the tests at high strain rates. It was found that the shear deformation localization (SDL) was considerably affected by the complex loading conditions. The micro-mecha...
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