Guowei Zhou
Shanghai Jiao Tong University
Ultimate tensile strengthSheet moulding compoundFinite element methodDeformation (engineering)Recrystallization (metallurgy)Composite materialRepresentative elementary volumeDynamic recrystallizationMaterials scienceDeformation mechanismMagnesium alloyCarbon fiber reinforced polymerMisorientationMicromechanicsGrain boundaryFiberSlip (materials science)DelaminationPlasticityMicrostructure
31Publications
11H-index
315Citations
Publications 32
Newest
#1Guowei Zhou (SJTU: Shanghai Jiao Tong University)H-Index: 11
#2Ruxue Liu (SJTU: Shanghai Jiao Tong University)
Last. Peidong Wu (McMaster University)H-Index: 44
view all 6 authors...
The evolutions of strain-rate sensitivity (SRS) in two slip modes, basal and prismatic in AZ31B alloy sheet, were studied at different temperatures with both experiments and simulations. With increasing deformation temperature, the AZ31B alloy sheet becomes more sensitive to strain rate under rolling direction tension. Meanwhile, the anisotropy (r-value) also presents a clearly increasing trend with loading rate at temperatures above 150 °C. Numerical simulation results based on crystal plastici...
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#1Guowei Zhou (SJTU: Shanghai Jiao Tong University)H-Index: 11
#2Haibin Tang (NUS: National University of Singapore)H-Index: 5
Last. Xuming Su (Ford Motor Company)H-Index: 15
view all 7 authors...
Abstract In current work, the crashworthiness of woven carbon fiber reinforced plastic (CFRP) hat section component is investigated under two types of loading experimentally and numerically, i.e., axial crushing and dynamic three-point bending. The crushing characteristics of woven CFRP hat section sample are evaluated at various impact velocities and layup orientations which exhibit different effects under two types of loading. With impact velocity/energy increasing, the bending behaviors illus...
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#1Qingping Sun (Nanjing Tech University)H-Index: 7
#1Qingping Sun (Nanjing Tech University)
Last. Weijian Han (Nanjing Tech University)H-Index: 1
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Abstract In this work, multi-scale finite element analyses based on three-dimensional (3D) hybrid macro/micro-scale computational models subjected to various loading conditions are carried out to examine the in-situ effect imposed by the neighboring plies on the failure initiation and propagation of cross-ply laminates. A detailed comparative study on crack suppression mechanisms due to the effect of embedded laminar thickness and adjacent ply orientation is presented. Furthermore, we compare th...
1 CitationsSource
#1Qingping Sun (Nanjing University of Science and Technology)H-Index: 7
#2Guowei Zhou (SJTU: Shanghai Jiao Tong University)H-Index: 11
Last. Xuming Su (Ford Motor Company)H-Index: 15
view all 8 authors...
Abstract In this study, integrated experimental tests and computational modeling are proposed to investigate the failure mechanisms of open-hole cross-ply carbon fiber reinforced polymer (CFRP) laminated composites. In particular, we propose two effective methods, which include width-tapered double cantilever beam (WTDCB) and fixed-ratio mixed-mode end load split (FRMMELS) tests, to obtain the experimental data more reliably. We then calibrate the traction-separation laws of cohesive zone model ...
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#1Guowei Zhou (OSU: Ohio State University)H-Index: 11
#2Qingping Sun (McMaster University)H-Index: 7
Last. Xuming Su (Ford Motor Company)H-Index: 15
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Abstract The mechanical behaviors and damage evolutions of carbon/epoxy woven fabric composites with three different geometries, i.e., one plain weave and two twill weave patterns with different areal densities, are studied under tensile loading. The effects of weave patterns on mechanical properties are investigated by monotonic and cyclic tension tests. Remarkable variations in stress-strain curve, Poisson’s ratio, residual strain and strain map exist in the three composites. Crimp ratio is fo...
5 CitationsSource
#1Qingping Sun (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 7
#2Guowei Zhou (OSU: Ohio State University)H-Index: 11
Last. Xuming Su (Ford Motor Company)H-Index: 15
view all 5 authors...
Abstract A bottom-up multi-scale modeling approach is used to develop an Integrated Computational Materials Engineering (ICME) framework for carbon fiber reinforced polymer (CFRP) composites, which has the potential to reduce development to deployment lead time for structural applications in lightweight vehicles. In this work, we develop and integrate computational models comprising of four size scales to fully describe and characterize three types of CFRP composites. In detail, the properties o...
4 CitationsSource
#1Guowei Zhou (OSU: Ohio State University)H-Index: 11
#2Qingping Sun (McMaster University)H-Index: 7
Last. Xuming Su (Ford Motor Company)H-Index: 15
view all 8 authors...
Abstract The mechanical properties and damage behaviors of carbon/epoxy woven fabric composite under in-plane tension and compression are studied at the meso-scale level through experiment and simulation. An efficient representative volume element (RVE) modeling method with consistent mesh, high yarn volume fraction and realistic geometry is proposed. The material constitutive laws with plasticity, tension-compression asymmetry and damage evolution are established for the three components - yarn...
9 CitationsSource
#1Zi-han Li (SJTU: Shanghai Jiao Tong University)
#2Guowei Zhou (OSU: Ohio State University)H-Index: 11
Last. Pei-dong Wu (McMaster University)
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Abstract The aim of present work is to develop a crystal plasticity modeling approach to integrate slip, dynamic recrystallization (DRX) and grain boundary sliding (GBS) for simulating the deformation behavior and texture evolution of magnesium alloys at high temperatures. Firstly, the deformation mechanisms of an AZ31B Mg alloy sheet at 300 °C were investigated by examining texture and microstructure evolution during uniaxial tension and compression tests. DRX refines microstructure at strains ...
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#1Zihan Li (SJTU: Shanghai Jiao Tong University)H-Index: 4
#2Guowei Zhou (OSU: Ohio State University)H-Index: 11
Last. Peidong Wu (McMaster University)H-Index: 44
view all 6 authors...
Abstract Magnesium alloy sheets usually has to be processed by warm forming, and change of strain path and evolution of microstructure can significantly influence their warm formability. Forming limit test for an AZ31B alloy sheet under strain path changes was configured and implemented, and the effects of strain paths and microstructure evolution on the forming limit diagram are investigated. The sheet was pre-strained under in-plane uniaxial, plane strain and biaxial tension loading paths at 1...
2 CitationsSource
#1Guowei Zhou (OSU: Ohio State University)H-Index: 11
#2W. Jeong (SNU: Seoul National University)H-Index: 1
Last. Robert H. Wagoner (OSU: Ohio State University)H-Index: 45
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ABSTRACT A general meso-scale (“GM”) crystal plasticity (CP) model was developed that accounts for lower-order (strain hardening) and higher-order (internal stress) effects of geometrically necessary dislocations (GNDs). It is predictive: no arbitrary parameters or length scales were invoked and no ad hoc numerical techniques were employed. It uses general stress field equations for GND content and a novel harmonization technique to enforce consistency of elastic long-range singular defect field...
2 CitationsSource