BRITTLE-FRACTURE PROPAGATION IN WIDE STEEL PLATES
Abstract
A fundamental fracture mechanics investigation was concerned with studies of the propagation of brittle fractures in wide steel plates in an attempt to delineate many of the parameters associated with a propagating fracture, and in particular to study the strain field surroundingA PROPAGATING BRITTLE FRACTURE. Tests were made on structural-steel plate specimens, either 2 or 6 ft in width. In most cases the plate specimens were stressed uniaxially to about 19,000 psi, cooled to about 0 F, and a fracture was started with the notch-wedge-impact method of fracture initiation. Measurements of the strain distribution on the surface of the plate and the crack spee were made as the fracture traversed the plate. The majority of the recorded fracture speeds ranged fr m 2000 to 4000 fps. the strain field surrounding the tip of an advancing fracture appeared to remain essentially unchanged after traversing about one-third the width of a 6-ft-wide plate. Exploratory studies were also made of the propagation of brittle fractures in prestressed plates. Analytical studies of plate response incated that the lattice representation is a promising method of studying plate response during fracture propagation. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 03, 1961
- Accession Number
- AD0264524
Entities
People
- S.t. Rolfe
- W.j. Hall
Organizations
- University of Illinois Urbana–Champaign