Zhangxing Chen
Ford Motor Company
Composite numberUltimate tensile strengthDigital image correlationOrientation tensorSheet moulding compoundFinite element methodMatrix (mathematics)Multiscale modelingComposite materialRepresentative elementary volumeChipFlexural strengthCurve fittingBiological systemDiagramCompression moldingMaterials scienceModulusVoronoi diagramCarbon fiber reinforced polymerStiffnessConstant (mathematics)Reconstruction algorithmFatigue testingComputational analysisUniaxial tensionCompressive strengthMicromechanicsFracture (geology)Numerical analysisFiberSelective laser sinteringExperimental dataCohesive zone modelFracture mechanicsCyclic stressVolume fractionPorosityDelaminationMicrostructureSubstructure
Publications 7
#1Qingping Sun (Nanjing University of Science and Technology)H-Index: 8
#2Guowei Zhou (SJTU: Shanghai Jiao Tong University)H-Index: 12
Last. Xuming Su (Ford Motor Company)H-Index: 18
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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 ...
#1Haibin Tang (NUS: National University of Singapore)H-Index: 5
#2Hui Chen (NUS: National University of Singapore)H-Index: 11
Last. Wentao Yan (NUS: National University of Singapore)H-Index: 18
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Abstract A fundamental understanding of structure-property relationship of carbon fiber reinforced polymer (CFRP) composites fabricated by selective laser sintering (SLS) is essential to provide guidance to improve the mechanical properties in this promising additive manufacturing process. In the present study, we propose a new computational framework to evaluate the mechanical behavior of SLSed CFRP based on the representative volume element (RVE) model. Firstly, a new voxel-based fiber packing...
3 CitationsSource
#1Haibin Tang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
#2Zhangxing Chen (Ford Motor Company)H-Index: 5
Last. Xuming Su (Ford Motor Company)H-Index: 18
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Abstract This study focuses on the notch effect on the fatigue failure of chopped carbon fiber chip-reinforced sheet molding compound (SMC) composites by using both experimental and numerical methods. The S-N diagrams of notched specimens are first obtained experimentally, which exhibit large scatter and are shown to depend on the spatial distribution of local fiber orientations. After considering the effect of this spatial distribution by adopting a new fatigue damage parameter to normalize the...
5 CitationsSource
#1Haibin Tang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
#2Zhangxing Chen (Chongqing University)H-Index: 5
Last. Xuming Su (Ford Motor Company)H-Index: 18
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Abstract The material behavior of chopped carbon fiber chip-reinforced Sheet Molding Compound (SMC) composite is investigated under both quasi-static and cyclic fatigue loading conditions in the present study. Quasi-static tensile and compressive strength data is collected, followed by a series of fatigue tests under three different cyclic loading conditions, i.e., Tension-Tension (T-T), Compression-Compression (C-C), and Tension-Compression (T-C). The experimental results show a considerable am...
9 CitationsSource
#1Zhangxing Chen (Chongqing University)H-Index: 5
#2Haibin Tang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 9 authors...
Abstract This paper presents a computational framework to predict the tensile failure of chopped carbon fiber SMC composites based on the Representative Volume Element (RVE) model. In the framework, a conforming mesh-based reconstruction algorithm is developed to generate mesostructure RVE models of SMC based on the statistical characteristics. Moreover, constitutive models are proposed for the three phases in SMC composites: fiber chip, matrix, and interface. The model predictions are validated...
17 CitationsSource
#1Yi Li (NU: Northwestern University)H-Index: 2
#2Zhangxing Chen (Chongqing University)H-Index: 5
Last. Hongyi Xu (Ford Motor Company)H-Index: 13
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Abstract To establish an integrated Processing-Microstructure-Property workflow for the prediction of material behaviors, this paper presents a new stochastic pseudo-3D microstructure reconstruction method for Sheet Molding Compounds (SMC) chopped fiber composites. The proposed method captures the bi-level microstructural features of SMC composites. At the higher level, a Voronoi diagram-based algorithm is developed to reconstruct the unique substructure features of SMC fiber tows. The geometry ...
8 CitationsSource
#1Zhangxing Chen (Chongqing University)H-Index: 5
#2Tianyu Huang (NU: Northwestern University)H-Index: 4
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 9 authors...
Abstract Predicting the mechanical behavior of the chopped carbon fiber Sheet Molding Compound (SMC) due to spatial variations in local material properties is critical for the structural performance analysis but is computationally challenging. Such spatial variations are induced by the material flow in the compression molding process. In this work, a new multiscale SMC modeling framework and the associated computational techniques are developed to provide accurate and efficient predictions of SM...
24 CitationsSource