HIGH ORDER INTEGRATION AND P-CONVERGENCE OF SMEARED CRACK ELEMENTS. FRACTURE OF CONCRETE AND ROCK: RECENT DEVELOPMENTS. PAPERS PRESENTED AT THE INTERNATIONAL CONFERENCE, UNIVERSITY OF WALES, COLLEGE OF CARDIFF, SCHOOL OF ENGINEERING, SEPTEMBER 20-22, 1989

In this paper, convergence studies of a simple tension strength, distributed crack, plane stress element with respect to integration rule and shape function order are presented. It is shown that under-integrating, linear and quadratic elements do yield a single crack element game stable response, though the quadratic is stiff for a practical mesh size. The crack patterns retain their definition under mesh requirements, but are clearly mesh dependent. It is also shown that convergence with increased integration order would be obtained in spite of the refinement in crack pattern. The main conclusions from the work are: (1) that an increase in the quadratic rule to obtain exact integration gives different results over the main cracking phase in comparison with the standard approach; and (2) the p-version with smeared crack elements appears to be stable at least with regard to global response. For the covering abstract of the conference see IRRD 829348.

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  • Corporate Authors:

    Elsevier Science Publishers

    Crown House, Linton Road
    Barking, Essex IG11 8JU,   England 
  • Authors:
    • Baker, G
  • Publication Date: 1989

Language

  • English

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Filing Info

  • Accession Number: 00605944
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 1-85166-414-9
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1991 12:00AM