Finite-Element Simulation of Ductile Fracture in Reduced Section Pull-Plates Using Micromechanics-Based Fracture Models

Micromechanics-based models that capture interactions of stress and strain provide accurate criteria to predict ductile fracture in finite-element simulations of structural steel components. Two such models—the void growth model and the stress modified critical strain model are applied to a series of twelve pull-plate tests that represent reduced (or net) section conditions in bolted and reduced beam section connections. Two steel varieties, A572 Grade 50 and a high-performance Grade 70 bridge steel are investigated. The models are observed to predict fracture much more accurately than basic longitudinal strain criteria, by capturing stress–strain interactions that lead to fracture. The flat stress and strain gradients in these pull plates allow the use of relatively coarse finite-element meshes providing economy of computation while capturing fundamental material behavior and offering insights into localized ductile fracture effects.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
• Authors:
  • Kanvinde, A M
  • Deierlein, G G
• Publication Date: 2007-5

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 656-664
• Serial:
  • Journal of Structural Engineering
  • Volume: 133
  • Issue Number: 5
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Cracking; Ductility; Finite element method; Fracture mechanics; Simulation; Steel; Steel bridges
• Uncontrolled Terms: Micromechanics models; Pull-plate tests
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01051533
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 14 2007 6:14PM