Qingping Sun
Ford Motor Company
Composite numberUltimate tensile strengthSheet moulding compoundWork (thermodynamics)Finite element methodMatrix (mathematics)Deformation (engineering)Transverse planeComposite materialRepresentative elementary volumeEpoxyCompression (physics)Materials scienceModulusConstitutive equationCarbon fiber reinforced polymerWoven fabricCrimpPlain weaveShell elementEnergy absorptionMicromechanicsFracture (geology)Elastic modulusFiberExperimental dataVolume fractionComputational modelDelaminationFibre-reinforced plasticBendingMicrostructureStress (mechanics)
24Publications
8H-index
211Citations
Publications 20
Newest
#1Haibin Tang (Nanjing University of Science and Technology)H-Index: 5
#2Qingping Sun (Ford Motor Company)H-Index: 8
Last. Wentao Yan (NUS: National University of Singapore)H-Index: 18
view all 5 authors...
Abstract Fused filament fabrication (FFF) with continuous carbon fiber filaments has proven to be a promising manufacturing technique in engineering applications. To provide guidance in the design of 3D printed carbon fiber reinforced polymer (CFPR) components, the longitudinal compression failure of continuous CFPR composites using the FFF technique is investigated systematically. First, longitudinal compression tests are performed for 3D printed continuous CFRP composites with and without desi...
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#1Qingping Sun (Nanjing University of Science and Technology)H-Index: 8
#2Guowei Zhou (SJTU: Shanghai Jiao Tong University)H-Index: 11
Last. Xuming Su (Ford Motor Company)H-Index: 18
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 (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: 18
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)
#1Qingping Sun (Nanjing Tech University)H-Index: 8
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
#1Tianyu Huang (NU: Northwestern University)H-Index: 4
#2Jiaying Gao (NU: Northwestern University)H-Index: 8
Last. Wei Chen (NU: Northwestern University)H-Index: 128
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Abstract We present a data-driven nonlinear uncertainty quantification and propagation framework to study the microstructure-induced stochastic performance of unidirectional (UD) carbon fiber reinforced polymer (CFRP) composites. The proposed approach integrates (1) microscopic image characterization, (2) stochastic microstructure reconstruction, and (3) efficient multiscale finite element simulations enabled by self-consistent clustering (SCA) analysis. To model the complex microstructural vari...
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#1Guowei Zhou (OSU: Ohio State University)H-Index: 11
#2Qingping Sun (McMaster University)H-Index: 8
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 7 authors...
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: 8
#2Guowei Zhou (OSU: Ohio State University)H-Index: 11
Last. Xuming Su (Ford Motor Company)H-Index: 18
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: 8
Last. Xuming Su (Ford Motor Company)H-Index: 18
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
#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
view all 5 authors...
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 (NUS: National University of Singapore)H-Index: 5
#2Zhangxing ChenH-Index: 7
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 9 authors...
Abstract Chopped carbon fiber sheet molding compound has a great potential in lightweight automotive, marine, and aerospace applications. One of the most challenging tasks is to predict the failure strength of the material due to its anisotropy and heterogeneity, as well as complex stress states in real-world working conditions. In this paper, a novel constitutive model of carbon fiber chip is proposed to capture the pre- and post-failure behaviors under different loading modes. On this basis, w...
3 CitationsSource