Creep and Time-dependent Response of Composites

The increasing prevalence of fiber reinforced polymer (FRP) in civil infrastructure such as rebar, rehabilitation/strengthening, seismic retrofit, pipelines, beams, columns, walls and in some cases all-FRP structures such as bridges has required a better understanding of the durability of these materials when subjected to harsh changing environmental conditions. Durability is typically associated with the prediction of long-term properties of a material in order to assess the time-dependent performance of structures where a service life of 50 years or more is required. The time-dependent response of a material is generally associated with creep and relaxation. Creep is a time-dependent and permanent deformation of materials when subjected to an externally applied load over an extended period of time. This chapter will describe creep and the time-dependent response of polymer matrix composites. An overview of creep and stress relaxation in FRP composites is provided and followed by a description of methods and procedures used to predict the long-term response of composites including accelerated aging. The effects of temperature, moisture, physical aging, and creep-fatigue interaction on the time-dependent response of the composite are discussed. The chapter reviews the influence of creep on the time-dependent structural behavior of all composite structures, structures rehabilitated with externally bonded FRP composites, and FRP composites reinforced concrete beam structures. Finally, the chapter concludes with an assessment of future trends in characterizing creep behavior and the time-dependent response of composites in civil infrastructure applications.

  • Availability:
  • Corporate Authors:

    Woodhead Publishing, Limited

    Abington Hall, Abington
    Cambridge,   United Kingdom  CB1 6AH

    CRC Press

    6000 Broken Sound Parkway, NW, Suite 300
    Boca Raton, FL  United States  33487
  • Authors:
    • Lee, L S
  • Publication Date: 2007

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 150-169
  • Monograph Title: Durability of Composites for Civil Structural Applications

Subject/Index Terms

Filing Info

  • Accession Number: 01351665
  • Record Type: Publication
  • ISBN: 9781845690359
  • Files: TRIS
  • Created Date: Sep 14 2011 11:12AM