Xuefeng Yao
Tsinghua University
Speckle patternComposite numberDigital image correlationOpticsFinite element methodLeakage (electronics)Composite materialEpoxyNatural rubberMaterials scienceCaustic (optics)Fracture (geology)Crack tip opening displacementFiberStress intensity factorMechanicsFracture mechanicsStructural engineeringCrack closureStress (mechanics)
117Publications
25H-index
1,838Citations
Publications 120
Newest
#1Yutong Fu (THU: Tsinghua University)H-Index: 1
#2Xuefeng Yao (THU: Tsinghua University)H-Index: 25
Last. Xuhao Gao (THU: Tsinghua University)H-Index: 2
view all 3 authors...
Abstract Void defects will inevitably occur in 3D braided composites during Resin Transfer Molding (RTM) process, which may reduce mechanical properties of 3D braided composites. Therefore, this paper focuses on void generation in 3D braided composites and optimizes its manufacturing technology. First, the basic governing equations considering flow, temperature changing and resin curing process are derived to describe the conservation of momentum, energy and mass of resin during RTM process. Sec...
Source
#1Han Yan (THU: Tsinghua University)H-Index: 2
#2Xuhao Gao (THU: Tsinghua University)
Last. Jianguo Lu (Shanghai Aircraft Design and Research Institute)H-Index: 1
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#1Yifeng Dong (THU: Tsinghua University)H-Index: 3
Last. Ke Yuchao
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In this article, the fatigue crack initiation life of the rubber damper is predicted based on the S, e, q, , , −, N, , , , curve of rubber material. First, the general expression of the equivalent stress Seq and the fatigue crack initiation life Nf of rubber material are derived under different stress states. Second, the fatigue crack initiation life of a dumbbell-type rubber specimen under different tension strains are measured, and the fatigue parameters of the rubber material are obtained by ...
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#1Xiaoyao Xu (THU: Tsinghua University)H-Index: 1
#2Xuefeng Yao (THU: Tsinghua University)H-Index: 25
Last. Han Yan (THU: Tsinghua University)H-Index: 2
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Abstract In this paper, the mechanical behaviors of non-orthogonal reticulated fabric reinforced rubber composite and its complex fabric rubber seal are investigated. First, a non-orthogonal constitutive model is developed to characterize the mechanical behaviors of reticulated fabric rubber composites, which considers the energy contributions of matrix, fiber and fiber-matrix interaction. Second, the constitutive constants of rubber, reticulated fabric rubber and the homogenization anisotropic ...
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#1Yifeng Dong (THU: Tsinghua University)H-Index: 3
#2Xuefeng Yao (THU: Tsinghua University)H-Index: 25
Last. Xiaoyao Xu (THU: Tsinghua University)H-Index: 1
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Abstract In this paper, the cross section shape of fabric rubber seal is designed and optimized. First, the cross section shape optimization design method is introduced based on the structural features of fabric rubber seal. Then, according to the key performance of fabric rubber seal, the optimization constraints, optimization objective and corresponding calculation methods are determined. Finally, the optimal cross section shapes of fabric rubber seal are obtained under different gas pressure ...
2 CitationsSource
#1Heng YangH-Index: 21
#2Li YuanH-Index: 3
Last. Daining FangH-Index: 52
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3 CitationsSource
#1Xuhao Gao (THU: Tsinghua University)H-Index: 2
#2Li Yuan (THU: Tsinghua University)H-Index: 3
Last. Heng Yang (BIT: Beijing Institute of Technology)H-Index: 2
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Abstract Void defects have appeared inevitably during the manufacturing process of braided composites, which directly affect the mechanical properties and strength of braided composites. First, the influence of internal void and porosity on the mechanical properties of resin was predicted. Second, the evolution in the mechanical properties of three dimensional (3D) braided composites was obtained using the Mori-Tanaka method. Finally, the strength prediction, failure mode, stress and strain fiel...
6 CitationsSource
#1Yutong Fu (THU: Tsinghua University)H-Index: 1
#2Xuhao Gao (THU: Tsinghua University)H-Index: 2
Last. Xuefeng Yao (THU: Tsinghua University)H-Index: 25
view all 3 authors...
Abstract Both cure deformations and residual stresses of 3D braided composites are studied based on the representative volume element (RVE) by means of thermochemical and thermodynamic model. First, the curing analysis model of cubic braided RVE is established, and the HETVAL, UMAT, UEXPAN and USDFLD subroutines are used to define the properties of the resin and the fiber about curing reaction kinetic, thermal conductive and viscoelastic model, respectively. Second, both thermochemical and therm...
1 CitationsSource
#1Heng Yang (THU: Tsinghua University)H-Index: 21
#2Li Yuan (THU: Tsinghua University)H-Index: 3
Last. Daining Fang (PKU: Peking University)H-Index: 52
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Abstract The piezoresistive behavior of graphene conductive polymer composites is vital for the performance of smart-sensing materials. In this paper, a numerical method for predicting the piezoresistive properties of graphene rubber composites is established in which user subroutines include the quantum tunneling effect. A representative volume element (RVE) with randomly distributed graphene was constructed, taking into account the large deformation characteristics of the rubber matrix, which ...
3 CitationsSource