Weihua Fang
Deflection (engineering)Mathematical analysisWork (thermodynamics)Finite element methodQuadrilateralSingularityElement (category theory)Cylinder stressBoundary value problemVariable (mathematics)EstimatorFocus (optics)Materials scienceExtended finite element methodDiscontinuity (linguistics)Isogeometric analysisApplied mathematicsLocal mesh refinementBoundary element analysisMathematicsComputer scienceSign functionFracture (geology)Numerical analysisHeat transferStress intensity factorCohesive zone modelMechanicsBasis functionBoundary element methodVolume fractionPorosityStructural engineeringConvergence (routing)Natural frequencyNode (circuits)Shear (geology)
5Publications
3H-index
28Citations
Publications 5
Newest
#1Weihua Fang (Ministry of Water Resources)H-Index: 3
#2Xin Chen (Hohai University)H-Index: 1
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
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Abstract This paper is devoted to numerical investigation of holes/voids effects on crack growth in solids using a locally refined (LR) B-splines extended isogeometric analysis (XIGA). We particularly focus our attention on crack-hole interaction analysis. Special enrichment functions captured discontinuity and singularity are used, by which the computational mesh are thus independent of both cracks and holes, eliminating re-meshing when modeling crack growth. Geometries of arbitrary shaped crac...
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#1Weihua FangH-Index: 3
#2Jiangfei Wu (Hohai University)H-Index: 1
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
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A new computational approach that combines the extended finite element method associated with variable-node elements and cohesive zone model is developed. By using a new enriched technique based on sign function, the proposed model using 4-node quadrilateral elements can eliminate the blending element problem. It also allows modeling the equal stresses at both sides of the crack in the crack-tip as assumed in the cohesive model, and is able to simulate the arbitrary crack-tip location. The multi...
5 CitationsSource
#1Weihua FangH-Index: 3
#2Zhilin AnH-Index: 2
Last. Tinh Quoc BuiH-Index: 1
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2 CitationsSource
#1Weihua FangH-Index: 3
#2Zhilin An (Hohai University)H-Index: 2
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
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Abstract This work is devoted to numerical analysis for two-dimensional thermoelasticity problems with temperature change by using the isogeometric boundary element method (IGABEM). The present IGABEM, which is highly attractive, possesses advantages of the isogeometric analysis with NURBS and boundary element method. We derive the theoretical formulations in terms of the IGABEM and apply it to thermal stress analysis. We examine the performance and accuracy of the proposed approach through nume...
6 CitationsSource
#1Weihua FangH-Index: 3
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
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Abstract We analyze mechanical behavior of porous beams by an effective computational approach based on isogeometric analysis (IGA). The quasi-3D theory is employed to take into account not only both normal and shear deformations without any shear correction factor, but also the thickness stretching effect, while the use of NURBS basis functions within the IGA framework can directly meet the first-order derivative demand of the quasi-3D theory. To demonstrate the accuracy and performance of the ...
14 CitationsSource