EFFECT OF ANTIBUCKLING CONSTRAINT ON DETERMINATION OF CRITICAL STRESS INTENSITY FACTOR OF ALUMINUM SHEET

Tests were made to compare K sub c values for Alclad aluminum sheet 7475-T761 determined from 16-in. (406-mm) wide, center-cracked tension panels tested with the without guides designed to prevent buckling from intensifying the crack tip stress field. The tests show that for sheet thicknesses ranging from 0.06 to 0.15 in. (1.52 to 3.81 mm) a multiplication factor of 0.87 is required to convert K sub c values obtained employing antibuckling guides to corresponding values obtained without guides. Above 0.15-in. thickness, test panels appeared to be of sufficient stiffness to prevent buckling without the use of guides, and therefore the conversion factor is unity.

• Corporate Authors:

  American Society for Testing and Materials (ASTM)

  100 Barr Harbor Drive, P.O. Box C700
  West Conshohocken, PA  United States  19428-2957
• Authors:
  • Bucci, R J
  • Sha, G T
• Publication Date: 1977-3

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 94-95
• Serial:
  • ASTM Journal of Testing and Evaluation
  • Volume: 5
  • Issue Number: 2
  • Publisher: Federal Highway Administration

Subject/Index Terms

• TRT Terms: Aluminum; Buckling; Cracking; Stiffness; Stresses
• Uncontrolled Terms: Intensity
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00163618
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 29 1977 12:00AM