A meshless sub-region radial point interpolation method for accurate calculation of crack tip fields

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Xiaoying Zhuang
  • Yongchang Cai
  • Charles Augarde

Externe Organisationen

  • Tongji University
  • Bauhaus-Universität Weimar
  • University of Durham
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Details

OriginalspracheEnglisch
Seiten (von - bis)118-125
Seitenumfang8
FachzeitschriftTheoretical and Applied Fracture Mechanics
Jahrgang69
PublikationsstatusVeröffentlicht - 16 Dez. 2013
Extern publiziertJa

Abstract

A new meshless sub-region radial point interpolation method (MS-RPIM) is proposed for linear elastic fracture mechanics. The Williams expansions of stress field for mode I/II crack is used as the trial functions in crack tip region, the meshless radial point interpolation is used for the rest of domain, and a mixed variational principle is used for discretisation. In contrast to existing meshless formulations, the present MS-RPIM requires only very few nodes around the crack tip to obtain smooth stress and accurate results and the SIFs can be directly obtained as part of the solution and no additional effort via post-processing.

ASJC Scopus Sachgebiete

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A meshless sub-region radial point interpolation method for accurate calculation of crack tip fields. / Zhuang, Xiaoying; Cai, Yongchang; Augarde, Charles.
in: Theoretical and Applied Fracture Mechanics, Jahrgang 69, 16.12.2013, S. 118-125.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Zhuang, Xiaoying ; Cai, Yongchang ; Augarde, Charles. / A meshless sub-region radial point interpolation method for accurate calculation of crack tip fields. in: Theoretical and Applied Fracture Mechanics. 2013 ; Jahrgang 69. S. 118-125.
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abstract = "A new meshless sub-region radial point interpolation method (MS-RPIM) is proposed for linear elastic fracture mechanics. The Williams expansions of stress field for mode I/II crack is used as the trial functions in crack tip region, the meshless radial point interpolation is used for the rest of domain, and a mixed variational principle is used for discretisation. In contrast to existing meshless formulations, the present MS-RPIM requires only very few nodes around the crack tip to obtain smooth stress and accurate results and the SIFs can be directly obtained as part of the solution and no additional effort via post-processing.",
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AU - Augarde, Charles

N1 - Funding information: The authors gratefully acknowledge the support of NSFC Key Programme (41130751), National Basic Research Program of China (973 Program: 2011CB013800), and Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT, IRT1029), Shanghai Pujiang Program (12PJ1409100), SRF for ROCS of State Education Ministry.

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