FLEXURAL AND TORSIONAL PROPERTIES OF PULTRUDED FIBER REINFORCED PLASTIC I-PROFILES

Experimental determination of the full section flexural and torsional properties of pultruded fiber reinforced plastic I-profiles is described. Based on beam theory approximations, test configurations for determining the various section properties are established. Tests were conducted on three different I-profiles with a range of span-to-depth ratios. Major and minor axis flexural rigidities and flexural moduli, determined from three- and -four point bending tests, show close correlation. Major and minor axis transverse shear rigidities and shear moduli show significant variation, due to differing effective areas of the cross section resisting transverse shear and differing fiber content and orientation in the web and flanges. St. Venant torsional shear moduli, determined from uniform torsion tests, are consistent but significantly greater than the transverse shear moduli, which may be due to variations in fiber content, orientation and lay up. Warping torsional rigidities, determined from nonuniform torsion tests, are consistent with values deduced from minor axis flexural rigidities, indicating that the influence of shear deformation on restrained torsional warping is insignificant.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10900268
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Roberts, T M
  • Al-Ubaidi, H
• Publication Date: 2002-2

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 28-34
• Serial:
  • Journal of Composites for Construction
  • Volume: 6
  • Issue Number: 1
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0268
  • EISSN: 1943-5614
  • Serial URL: http://ascelibrary.org/journal/jccof2

Subject/Index Terms

• TRT Terms: Axis; Bend tests; Bending; Deformation; Experiments; Fiber reinforced plastics; Flanges; Flexural strength; Shear modulus; Stiffness; Torsion; Torsion tests; Transverse strength; Warpage; Webbing
• Uncontrolled Terms: Fiber content; I-profiles; Pultrusion
• Subject Areas: Geotechnology; Highways; Materials; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00920138
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 8 2002 12:00AM