Estimation of Long-Term Stiffness of Storage Aged GFRP Composite Samples Immersed in HCl Acid by TTSP Method

Glass fiber reinforced polymer (GFRP) composites are the alternatives for the steel, metal, and wood materials in many applications. GFRPs have high specific tensile and compressive strength, good fatigue, and corrosion resistance. In this study, 15-year storage aged GFRP composite dumbbell-shaped specimens were immersed in concentrated HCl at different temperatures and times. The Young modulus, which is a yardstick of stiffness of the samples, was measured. The long-term stiffness at any time and temperature was predicted by using the master curve of stiffness obtained based on our accelerated testing results. In the first, second, third, and fourth years of the prediction the stiffness was  6800, 6400, 5550, and 5150 MPa, respectively. SEM micrographs of typical samples showed failure mode at the interface. The strength showed reduction due to degradation of fiber/matrix interfacial bond. The best match of our prediction obtained by using error function was between the first and the third years.

• Record URL:
  • http://www.isrn.com/journals/me/2011/251219/
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/20905122
• Authors:
  • Bagherpour, Salar
  • Bagheri, Rouholah
  • Saatchi, Ahmad
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: 7p
• Serial:
  • ISRN Mechanical Engineering
  • Volume: 2011
  • Publisher: Hindawi Publishing Corporation
  • ISSN: 20905122
  • EISSN: 20905130
  • Serial URL: http://www.hindawi.com/isrn/me/

Subject/Index Terms

• TRT Terms: Aging (Materials); Composite materials; Compressive strength; Corrosion resistance; Durability; Fiber composites; Glass fiber reinforced plastics; Stiffness matrix; Tensile strength
• Subject Areas: Bridges and other structures; Highways; Materials; I30: Materials;

Filing Info

• Accession Number: 01345632
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 27 2011 7:20AM