Tiantang Yu
Hohai University
AlgorithmMathematical analysisFinite element methodComposite materialPlate theoryBoundary value problemEstimatorMaterials scienceVibrationExtended finite element methodStiffnessIsogeometric analysisApplied mathematicsMaterial propertiesMathematicsComputer scienceFracture (geology)Numerical analysisStress intensity factorRate of convergenceMechanicsBasis functionStructural engineeringDiscretizationNatural frequencyBuckling
80Publications
32H-index
2,380Citations
Publications 81
Newest
#1Jiming Gu (Hohai University)H-Index: 7
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
view all 6 authors...
Abstract In this paper, we present an effective computational approach that combines an adaptive extended isogeometric analysis (XIGA) method with locally refined (LR) B-splines and level set methods for modeling multiple inclusions in two-dimensional (2D) elasticity problems. The advantage of XIGA is to model inclusions without considering internal inclusion interfaces by additional functions. Multiple level set functions are used to represent the location of inclusion interfaces and to define ...
36 CitationsSource
#1Ang Li (Hohai University)H-Index: 4
#2Guojian Shao (Hohai University)H-Index: 4
Last. Hougai Shi (Hohai University)H-Index: 2
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AbstractThis paper investigates the influence of heterogeneity on mechanical and acoustic emission (AE) behaviours of stratified rock specimens under uniaxial compression using a digital image processing (DIP)-based finite difference method (FDM). In the DIP, a developed image segmentation algorithm based on seeded region growing (SRG) is proposed to fully acquire the mesostructure of stratified rock specimens, instead of the traditional threshold value method. To sufficiently capture the heterog...
3 CitationsSource
#1Shuo Liu (Hohai University)H-Index: 5
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
view all 5 authors...
Failure of structures and their components is one of major problems in engineering. Studies on mechanical behavior of functionally graded (FG) microplates with defects or cracks by effective numerical methods are rarely reported in literature. In this paper, an effective numerical model is derived based on extended isogeometric analysis (XIGA) for assessment of vibration and buckling of FG microplates with cracks. Based on the modified couple stress theory, the non-classical theory of Reissner–M...
35 CitationsSource
#1S. H. Sun (Hohai University)H-Index: 1
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
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Abstract In this paper, a new approach is developed for structural shape optimization, which consists in coupling the particle swarm optimization (PSO) algorithm and the isogeometric boundary element method (IGA-BEM). The IGA-BEM is based on the combination of the isogeometric analysis (IGA) and the boundary element method (BEM), where Non-Uniform Rational B-Splines (NURBS) are employed as shape functions for geometry parameterization and approximation of the field variables. The method inherits...
51 CitationsSource
#1Zhilin An (Hohai University)H-Index: 2
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Ngoc Anh TrinhH-Index: 3
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Abstract In this paper, the recently developed hybrid numerical method based on isogeometric analysis (IGA) and boundary element method (BEM), named as IGABEM, is further extended to study steady heat transfer problems in two dimensions (2D). The IGA employs spline basis functions (e.g., NURBS) as shape functions for geometric description and field approximation. The NURBS only describe the boundary of objects, and the BEM also directly deals with the boundaries. Therefore, the combined IGABEM i...
31 CitationsSource
#1Gao Yi (Hohai University)H-Index: 3
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Satoyuki Tanaka (Hiroshima University)H-Index: 22
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Abstract In this paper, a new effective approach based on conservative integral approach associated with extended finite element method (XFEM) is developed for evaluating stress intensity factors (SIFs) of bi-material V-notched structures. The XFEM model for bi-material V-notches is established, which owns various features: (a) jump enrichment functions are taken for describing the intersection of notch-faces; (b) eight (real eigenvalue) or sixteen (complex eigenvalue) branch functions are emplo...
12 CitationsSource
#1Tiantang Yu (Hohai University)H-Index: 32
#2Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
Abstract The present paper is concerned with numerical simulation of two-dimensional (2-D) cracks and material interfaces by an effective computational approach. A local mesh refinement in terms of extended finite element method is thus described. The new approach combines a posteriori error estimation algorithm, a local non-conformal mesh connection strategy, and local enrichment. An error estimator based on recovery strain for adaptivity is used; allowing the mesh where it is needed is subsequ...
51 CitationsSource
#1Chunping Ma (Hohai University)H-Index: 6
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
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Abstract This paper presents an effective computational approach comprised of forward and inverse analyses for detection of multiple complex flaw clusters in elastic solids. A three-step detection strategy is introduced for inverse analysis, whereas extended finite element method (XFEM) is adopted for forward analysis. The use of XFEM is to avoid re-meshing during the change of flaw geometries. The three-step detection strategy involves: firstly, an optimization method that couples an improved d...
20 CitationsSource
#1Shuo Liu (Hohai University)H-Index: 5
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
view all 3 authors...
Abstract This paper presents an effective plate formulation coupling the merits of isogeometric analysis (IGA) and a new non-classical simple first-order shear deformation theory (SFSDT) for static bending, free vibration, and buckling of functionally graded (FG) moderately thick microplates. In contrast to the conventional first-order shear deformation theory (FSDT), the new SFSDT adopted here inherently owns several advantages such as free from shear-locking, capturing the shear-deformation ef...
47 CitationsSource
#1Shuohui YinH-Index: 18
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Gao Yi (Hohai University)H-Index: 3
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Abstract We present a rotation free isogeometric analysis formulation based on Kirchhoff-Love theory, which aims to address free vibration and buckling behaviors of functionally graded thin plates with in-plane material inhomogeneity. For Kirchhoff-Love thin plate analysis, construction of C 1 conforming finite element approximation is not straightforward, while isogeometric analysis with high-order continuity splines basis functions is ideally suited for Kirchhoff-Love elements. We first explai...
32 CitationsSource