CREEP OF SANDWICH BEAMS WITH POLYMER FOAM CORES

A simple model is presented for the creep deflection of sandwich beams with linear viscoelastic foam cores. This gives a good description of beam behavior at loading times up to 1,200 hours and for unloading times of an additional 450 hours. These results, combined with Just's (1983) finding that 1,000-hour test results can be extrapolated to give long-term, 10-year creep data for sandwich beams with polyurethane foam cores, provide a basis for the calculation of the long-term creep in sandwich panels with any density foam core under any design load, provided that the foam is linear viscoelastic.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Huang, J-S
  • Gibson, L J
• Publication Date: 1990-8

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 171-182
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 2
  • Issue Number: 3
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Beams; Core samples; Creep; Mathematical models; Polyurethane foams; Sandwich construction; Structural design
• Uncontrolled Terms: Models
• Old TRIS Terms: Cores
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00497493
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 30 1990 12:00AM