Xuan Peng
Suzhou University of Science and Technology
Partition of unityMathematical analysisFinite element methodMesh generationGalerkin methodMaterials scienceExtended finite element methodGeometryDamage tolerancePolynomial basisIsogeometric analysisApplied mathematicsLinear elasticityMathematicsComputer scienceFracture (geology)Numerical analysisBoundary knot methodStress intensity factorFracture mechanicsBasis functionBoundary element methodStructural engineeringParis' lawDiscretizationStress (mechanics)
20Publications
4H-index
202Citations
Publications 18
Newest
#1Xuan Peng (Cardiff University)H-Index: 4
#2Elena Atroshchenko (University of Chile)H-Index: 11
Last. Stéphane Bordas (University of Luxembourg)H-Index: 65
view all 4 authors...
Abstract We present a novel numerical method to simulate crack growth in 3D, directly from the Computer-Aided Design (CAD) geometry of the component, without any mesh generation. The method is an isogeometric boundary element method (IGABEM) based on non-uniform rational B-splines (NURBS). NURBS basis functions are used for the domain and crack representation as well as to approximate the physical quantities involved in the simulations. A stable quadrature scheme for singular integration is prop...
102 CitationsSource
#1Xuan Peng (Cardiff University)H-Index: 4
#2Elena Atroshchenko (University of Chile)H-Index: 11
Last. Stéphane Bordas (Cardiff University)H-Index: 65
view all 4 authors...
We propose a method for simulating linear elastic crack growth through an isogeometric boundary element method directly from a CAD model and without any mesh generation. To capture the stress singularity around the crack tip, two methods are compared: (1) a graded knot insertion near crack tip; (2) partition of unity enrichment. A well-established CAD algorithm is adopted to generate smooth crack surfaces as the crack grows. The M integral and \(J_k\) integral methods are used for the extraction...
51 CitationsSource
#1Xuan Peng (Cardiff University)H-Index: 4
#2Sivakumar Kulasegaram (Cardiff University)H-Index: 17
Last. Stéphane Bordas (Cardiff University)H-Index: 65
view all 4 authors...
We present a method to achieve smooth nodal stresses in the XFEM. The salient feature of the method is to introduce an ‘average’ gradient into the construction of the approximation. Due to the higher-order polynomial basis provided by the interpolants, the new approximation enhances the smoothness of the solution without requiring an increased number of degrees of freedom. We conclude from numerical tests that the proposed method tends to be an efficient alternative to the classical XFEM, bypass...
17 CitationsSource
#1Xuan PengH-Index: 4
#2Elena AtroshchenkoH-Index: 11
Last. Stéphane BordasH-Index: 65
view all 4 authors...
#1Xuan Peng (Cardiff University)H-Index: 4
#2Elena Atroshchenko (University of Chile)H-Index: 11
Last. Stéphane Bordas (University of Luxembourg)H-Index: 65
view all 4 authors...
#1Xuan Peng (Cardiff University)H-Index: 4
#2Elena Atroshchenko (University of Chile)H-Index: 11
Last. Stéphane Bordas (University of Luxembourg)H-Index: 65
view all 4 authors...
2 Citations
#1Xuan PengH-Index: 4
#2Stéphane Bordas (University of Luxembourg)H-Index: 65
#1Xuan PengH-Index: 4
#2Stéphane Bordas (University of Luxembourg)H-Index: 65
#1Xuan PengH-Index: 4
#2Elena AtroshchenkoH-Index: 11
Last. Stéphane Bordas (University of Luxembourg)H-Index: 65
view all 4 authors...
#1Naim Hossain (Bauhaus University, Weimar)H-Index: 1
#2Gang Xu (Hangzhou Dianzi University)H-Index: 16
Last. Timon Rabczuk (Bauhaus University, Weimar)H-Index: 101
view all 7 authors...
1 inuTech GmbH, Further Str.212, 90429 Nurnberg, Germany 2 Hangzhou Dianzi University, Hangzhou 310018, P.R. China 3 Universite du Luxembourg, Luxembourg 4 Department of Mechanical Engineering, University of Chile, Santiago, 8370448, Chile 5 Institute of Mechanics and Advanced materials, Cardiff University, CF24 3AA Cardiff, UK 6 Institute of Structural Mechanics, Bauhaus University Weimar, Marienstrase 15, 99423 Weimar, Germany