The ACR-program for automatic finite element model generation for part through cracks

Mikko Leinonen, Timo Mikkola

Research output: Book/ReportReportProfessional

Abstract

ACR-program (Automatic Finite Element Model Generation for Part Through Cracks) has been developed at the Technical Research Centre of Finland (VTT) for automatic finite element model generation for surface flaws using three dimensional solid elements. Circumferential or axial cracks can be generated on the inner or outer surface of a cylindrical or toroidal geometry. Several crack forms are available including the standard semi-elliptical surface crack. The program can be used in the development of automated systems for fracture mechanical analyses of structures. The tests for the accuracy of the FE-mesh have been started with two-dimensional models. The results indicate that the accuracy of the standard mesh is sufficient for practical analyses. Refinement of the standard mesh is needed in analyses with high load levels well over the Iimit load of the structure.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages82
ISBN (Print)951-38-3600-2
Publication statusPublished - 1989
MoE publication typeD4 Published development or research report or study

Publication series

NameTutkimuksia / Valtion teknillinen tutkimuskeskus
PublisherVTT
Volume658

Fingerprint

Cracks
Defects
Geometry

Keywords

  • cracks
  • computer simulation
  • models
  • finite element method
  • computer programs
  • ACR

Cite this

Leinonen, M., & Mikkola, T. (1989). The ACR-program for automatic finite element model generation for part through cracks. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, No. 658
Leinonen, Mikko ; Mikkola, Timo. / The ACR-program for automatic finite element model generation for part through cracks. Espoo : VTT Technical Research Centre of Finland, 1989. 82 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 658).
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Leinonen, M & Mikkola, T 1989, The ACR-program for automatic finite element model generation for part through cracks. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, no. 658, VTT Technical Research Centre of Finland, Espoo.

The ACR-program for automatic finite element model generation for part through cracks. / Leinonen, Mikko; Mikkola, Timo.

Espoo : VTT Technical Research Centre of Finland, 1989. 82 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 658).

Research output: Book/ReportReportProfessional

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AB - ACR-program (Automatic Finite Element Model Generation for Part Through Cracks) has been developed at the Technical Research Centre of Finland (VTT) for automatic finite element model generation for surface flaws using three dimensional solid elements. Circumferential or axial cracks can be generated on the inner or outer surface of a cylindrical or toroidal geometry. Several crack forms are available including the standard semi-elliptical surface crack. The program can be used in the development of automated systems for fracture mechanical analyses of structures. The tests for the accuracy of the FE-mesh have been started with two-dimensional models. The results indicate that the accuracy of the standard mesh is sufficient for practical analyses. Refinement of the standard mesh is needed in analyses with high load levels well over the Iimit load of the structure.

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Leinonen M, Mikkola T. The ACR-program for automatic finite element model generation for part through cracks. Espoo: VTT Technical Research Centre of Finland, 1989. 82 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 658).