A BEND METHOD FOR MEASURING FATIGUE CRACK PROPAGATION IN THICK MATERIALS

A fatigue machine is described for making crack propagation experiments in bending on specimens up to half an inch thick. The test specimen is small and of simple shape to minimise machining time and cost. The machine can be readily adapted to make tests at high temperatures and to run at different frequencies. For two aluminum alloys, comparison experiments on specimens cut from the same sheet of material gave good agreement for tests made in tension or in bending. /Author/

• Corporate Authors:

  Ministry of Aviation

  Royal Aircraft Establishment
  Farnborough, Hampshire,   England 
• Authors:
  • PEARSON, S
• Publication Date: 1966

Language

• English

Media Info

• Features: Figures; References;
• Pagination: 8 p.

Subject/Index Terms

• TRT Terms: Aluminum alloys; Bending; Cracking; Fatigue (Mechanics); Measurement; Specimens; Temperature; Tension; Testing equipment; Thickness
• Uncontrolled Terms: Crack propagation
• ITRD Terms: 4532: Alloy; 7168: Aluminium; 5211: Cracking; 5586: Deflection; 3674: Equipment; 5579: Fatigue (mater); 6136: Measurement; 4543: Metal; 6722: Temperature; 5502: Tension; 5933: Thickness
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00083429
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: R&D Rpt
• Files: ITRD, TRIS
• Created Date: May 29 1975 12:00AM