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 79
Newest
#1Chao Wang (Anhui University of Technology)H-Index: 7
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
view all 5 authors...
Abstract Structural shape optimization is one important and crucial step in the design and analysis of many engineering applications as it aims to improve structural characteristics, i.e., reducing stress concentration and structural weight, or improving the stiffness, by changing the structural boundary geometries. The goal of this paper is to present an efficient approach, which goes beyond limitations of conventional methods, by combining extended isogeometric analysis (XIGA) and chaotic part...
23 CitationsSource
#1Tiantang Yu (Hohai University)H-Index: 32
#2Wenjiang Lai (Hohai University)H-Index: 2
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
view all 3 authors...
The isogeometric analysis (IGA), which employs non-uniform rational B-splines (NURBS) basis as shape functions for both representation of geometry and approximation of the field variables, owns several inherent advantages to become an effective numerical method such as an exact geometry description with fewer control points, high-order continuity, and high accuracy. Unlike the C0-continuity shape functions in the conventional finite element method (FEM), the high-order basis functions in IGA are...
8 CitationsSource
#1Shuohui Yin (XTU: Xiangtan University)H-Index: 18
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Shuitao Gu (Chongqing University)H-Index: 3
view all 5 authors...
Abstract The main objective of this paper is to develop a novel multiscale approach for simulating static and stationary dynamic crack problems in two-dimensional elastic solids through an extended isogeometric analysis using the Non-Uniform Rational B-Splines (NURBS). This multiscale strategy consists of two techniques that the Nitsche’s method is applied for coupling different length-scales meshes on one hand, and on the other hand, a local enrichment technique is taken to describe the cracks ...
16 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...
Abstract In this paper, we present an effective plate formulation based on isogeometric analysis (IGA) and non-classical Kirchhoff plate theory for the study of static bending and buckling behaviors of nanoplates, taking into account microstructure and surface energy effects. In this setting, the modified couple stress theory is used to capture microstructure effect, while the Gurtin-Murdoch surface theory is adopted to consider surface energy effect. The C1-continuity requirement of the non-cla...
40 CitationsSource
#1Tinh Quoc BuiH-Index: 54
#2Tiantang YuH-Index: 32
Last. Le Van LichH-Index: 15
view all 4 authors...
Source
#1M. Ozdemir (Ordu University)H-Index: 8
#1Murat Özdemir (Ordu University)H-Index: 10
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
view all 5 authors...
Abstract Buckling behavior of flat and cylindrical shells including through-the-thickness crack (through crack) is examined employing an effective reproducing kernel (RK) meshfree method. The concept of convected coordinate system is adopted to deal with general curvilinear surfaces. Both field variables and shell geometry are approximated by RKs, which is conceptually same procedure with isoparametric Finite Element Method (FEM). Each node has five degrees of freedom (DOFs). The numerical integ...
12 CitationsSource
#1M. Ozdemir (Ordu University)H-Index: 8
#1Murat Özdemir (Ordu University)H-Index: 10
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
view all 6 authors...
A buckling analysis of stiffened plates including curvilinear surfaces is carried out by an effective meshfree model. The buckling loads and modes computed by the present method are analyzed. Six degrees of freedom (6-DOFs) curved shell meshfree formulation in a convected coordinate system including a drilling rotation component is employed, which enables the assembly of curved shells for the modeling of more complex structures. By this formulation, the assembly of any arbitrary shape of geometr...
15 CitationsSource
#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 ...
34 CitationsSource
#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 5 authors...
Abstract We present an effective adaptive analysis procedure in terms of isogeometric analysis (IGA) based on locally refined (LR) B-splines for two-dimensional elasticity problems. One major advantage of the adopted LR B-splines over B-splines and non-uniform rational B-splines (NURBS) is the local refinement, which makes it highly suitable for adaptive analysis. The Zienkiewicz–Zhu estimation is used on error estimator based local refinement. The local refinement is implemented by the structur...
41 CitationsSource
#1Ang Li (Hohai University)H-Index: 4
#2Guojian Shao (Hohai University)H-Index: 4
Last. Hougai Shi (Hohai University)H-Index: 2
view all 6 authors...
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