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Journal Article 9

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XFEM 6

3-D cracks 1

J-integral 1

COD 1

Castigliano’s theorem 1

CutFEM 1

PD-COD 1

Paris law 1

TFSI model 1

XFEM-BCQO 1

bilateral crack 1

breaking energy 1

computational accuracy and efficiency 1

coupled thermal-stress 1

crack growth 1

critical extension 1

explicit level-sets 1

extended finite element method 1

extended finite element method (XFEM) 1

fatigue crack growth 1

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Peridynamics versus XFEM: a comparative study for quasi-static crack problems

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4, Pages 548-557 doi: 10.1007/s11709-017-0434-6

Abstract: On the other hand, the extended finite element method (XFEM) is one of the most popular methods for fractureThis article presents a comparative study between XFEM and PD. Therefore, two examples are studied.The results show that PD as well as XFEM are well suited to capture this type of behaviour.

Keywords： XFEM peridynamic bilateral crack parallel double cracks nonlocal theory

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Application of coupled XFEM-BCQO in the structural optimization of a circular tunnel lining subjected

Nazim Abdul NARIMAN, Ayad Mohammad RAMADAN, Ilham Ibrahim MOHAMMAD

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6, Pages 1495-1509 doi: 10.1007/s11709-019-0574-y

Abstract: method of coupled extended finite element method and bound constrained quadratic optimization method (XFEM-BCQOXFEM approach is used to show the cracks for the mentioned design cases.method for the maximum design case for the tunnel tensile damage was matching the results obtained from XFEM

Keywords： ovaling deformation monte carlo sampling XFEM-BCQO maximum principal stress

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An investigation on prevalent strategies for XFEM-based numerical modeling of crack growth in porous

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4, Pages 914-936 doi: 10.1007/s11709-021-0750-8

Abstract: Among all numerical methods, the extended finite element method (XFEM) has recently attracted much attentionHowever, XFEM modeling does not directly lead to reliable results, and choosing a strategy of implementationIn this study, two prevalent XFEM strategies are evaluated: a) applying reduced Young’s modulus to pores

Keywords： numerical modeling extended finite element method porous media crack growth stress intensity factor

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A regularization scheme for explicit level-set XFEM topology optimization

Markus J. GEISS, Jorge L. BARRERA, Narasimha BODDETI, Kurt MAUTE

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2, Pages 153-170 doi: 10.1007/s11465-019-0533-2

Abstract: physical response of the system of interest, are discretized by the extended finite element method (XFEM

Keywords： level-set regularization explicit level-sets XFEM CutFEM topology optimization heat method signed distance

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XFEM schemes for level set based structural optimization

Li LI, Michael Yu WANG, Peng WEI

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4, Pages 335-356 doi: 10.1007/s11465-012-0351-2

Abstract:

In this paper, some elegant extended finite element method (XFEM) schemes for level set method structuralFirstly, two- dimension (2D) and three-dimension (3D) XFEM schemes with partition integral method areFurthermore, the methods for improving the computational accuracy and efficiency of XFEM are studied,which include the XFEM integral scheme without quadrature sub-cells and higher order element XFEM schemeNumerical examples show that the XFEM scheme without quadrature sub-cells can yield similar accuracy

Keywords： structural optimization level set method extended finite element method (XFEM) computational accuracy

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A new fracture criterion for peridynamic and dual-horizon peridynamics

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4, Pages 629-641 doi: 10.1007/s11709-017-0447-1

Abstract: A new fracture criterion based on the crack opening displacement for peridynamic (PD) and dual-horizon peridynamics (DH-PD) is proposed. When the relative deformation of the PD bond between the particles reaches the critical crack tip opening displacement of the fracture mechanics, we assume that the bond force vanishes. A new damage rule similar to the local damage rule in conventional PD is introduced to simulate fracture. The new formulation is developed for a linear elastic solid though the extension to nonlinear materials is straightforward. The performance of the new fracture criterion is demonstrated by four examples, i.e. a bilateral crack problem, double parallel crack, monoclinic crack and the double inclined crack. The results are compared to experimental data and the results obtained by other computational methods.

Keywords： Castigliano’s theorem breaking energy critical extension XFEM COD PD-COD

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Thermal fluid-structure interaction and coupled thermal-stress analysis in a cable stayed bridge exposed to fire

Nazim Abdul NARIMAN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4, Pages 609-628 doi: 10.1007/s11709-018-0452-z

Abstract: Extended finite element method (XFEM) is adopted to create 3D models of the cable stayed bridge to simulate

Keywords： fire scenario transient heat transfer TFSI model coupled thermal-stress XFEM

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Fatigue crack growth simulations of 3-D linear elastic cracks under thermal load by XFEM

Himanshu PATHAK,Akhilendra SINGH,I.V. SINGH,S. K. YADAV

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4, Pages 359-382 doi: 10.1007/s11709-015-0304-z

Abstract: paper deals with the fatigue crack growth simulations of three-dimensional linear elastic cracks by XFEMunder thermal shock, adiabatic and isothermal loads to reveal the sturdiness and versatility of the XFEM

Keywords： 3-D cracks fatigue life Paris law thermal load XFEM