Viscoelastic characterization of high fiber content filament wound polyurethane matrix composites

M. W. Orlet, Charles E. Bakis

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Elastomeric matrix composites (EMCs) consisting of a polyurethane matrix unidirectionally reinforced with high volume fractions of high strength fibers have interesting and unique mechanical properties such as high strength and stiffness in the fiber direction and high ductility perpendicular to the fibers. The aim of this investigation is to explore the quasi-static mechanical properties of glass and carbon fiber EMCs in the direction transverse to the fibers and to measure and model the creep of the monolithic matrix material and the transverse creep of the glass EMC. In the quasi-static tests, glass and carbon EMCs followed a monotonic stress-strain curve that was essentially flat from approximately 1-2% to over 10% strain. The maximum stresses obtained in the quasi-static tests were approximately 3.5 and 7 MPa in the carbon and glass EMCs, respectively. The monolithic matrix and the glass EMC loaded transversely to the fibers both showed highly nonlinear creep behaviors. The former creep behavior was modeled successfully with a standard power law expression. The nonlinear creep behavior of the glass EMC cannot be modeled with a standard power law expression, possibly due to creep damage.

Original languageEnglish (US)
Pages (from-to)1042-1058
Number of pages17
JournalRubber Chemistry and Technology
Volume71
Issue number5
DOIs
StatePublished - Jan 1 1998

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Polyurethanes
Creep
Fibers
Composite materials
Glass
Carbon
Mechanical properties
Stress-strain curves
elastomeric
Glass fibers
Carbon fibers
Ductility
Volume fraction
Stiffness

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

Cite this

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abstract = "Elastomeric matrix composites (EMCs) consisting of a polyurethane matrix unidirectionally reinforced with high volume fractions of high strength fibers have interesting and unique mechanical properties such as high strength and stiffness in the fiber direction and high ductility perpendicular to the fibers. The aim of this investigation is to explore the quasi-static mechanical properties of glass and carbon fiber EMCs in the direction transverse to the fibers and to measure and model the creep of the monolithic matrix material and the transverse creep of the glass EMC. In the quasi-static tests, glass and carbon EMCs followed a monotonic stress-strain curve that was essentially flat from approximately 1-2{\%} to over 10{\%} strain. The maximum stresses obtained in the quasi-static tests were approximately 3.5 and 7 MPa in the carbon and glass EMCs, respectively. The monolithic matrix and the glass EMC loaded transversely to the fibers both showed highly nonlinear creep behaviors. The former creep behavior was modeled successfully with a standard power law expression. The nonlinear creep behavior of the glass EMC cannot be modeled with a standard power law expression, possibly due to creep damage.",
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Viscoelastic characterization of high fiber content filament wound polyurethane matrix composites. / Orlet, M. W.; Bakis, Charles E.

In: Rubber Chemistry and Technology, Vol. 71, No. 5, 01.01.1998, p. 1042-1058.

Research output: Contribution to journalArticle

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