DYNAMIC PHOTOELASTIC ANALYSIS OF THREE FRACTURE SPECIMENS

Previous dynamic photoelasticity results on single edge- notched tension plates without and with stringer reinforcements, dynamic tear test (DTT) specimens and wedge- loaded double cantilever beam (DCB) specimens are reviewed and some common fracture dynamic features in these three specimens machined from 9.53 mm thick Homalite-100 plates are discussed. Comparisons between dynamic finite element and dynamic photoelastic analyses of single edgenotched tension plates and one-dimensional dynamic, and dynamic photoelasticity analyses of wedge-loaded DCB specimens verified the existence of large fluctuations in dynamic stress intensity factors during crack propagation in the specimens considered in these investigations.

• Corporate Authors:

  University of Washington, Seattle

  Department of Mechanical Engineering
  Seattle, WA  United States  98105
• Authors:
  • Kobayashi, A S
  • Mall, S
• Publication Date: 1976-1

Media Info

• Pagination: 30 p.

Subject/Index Terms

• TRT Terms: Beams; Cracking; Dynamic tests; Fracture mechanics; Stresses; Tear strength
• Uncontrolled Terms: Crack propagation; Stress intensity factors
• Old TRIS Terms: Cantilever beams; Dynamic tear test
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00138015
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: TR-24 Tech. Rpt.
• Contract Numbers: N00014-76-C-0060
• Files: TRIS
• Created Date: Jul 22 1976 12:00AM