Dynamic behavior of fiber reinforced composites under multiaxial compression

Kenji Oguni, G. Ravichandran

Research output: Chapter in Book/Report/Conference proceedingChapter

6 Citations (Scopus)

Abstract

Results from an experimental investigation on the mechanical behavior of a unidirectional reinforced polymer composite with 50% volume fraction E-glass/vinylester under uniaxial and proportional multiaxial compression are presented. Specimens are loaded in the fiber direction using a servo-hydraulic material testing system for low strain rates and a Kolsky (split Hopkinson) pressure bar for high strain rates, up to 3000 s-1. The results indicate that the compressive strength of the composite increases with increasing levels of confinement and increasing strain rates. Post-test optical and scanning electron microscopy is used to identify the failure modes. The failure mode that is observed in unconfined specimen is axial splitting followed by fiber kink band formation. At high levels of confinement, the failure mode transitions from axial splitting to kink band formation and fiber failure. Also, a new energy based analytic model for studying axial splitting phenomenon in unidirectional fiber-reinforced composites is presented.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Applied Mechanics Division, AMD
PublisherASME
Pages87-96
Number of pages10
Volume235
ISBN (Print)0791816524
Publication statusPublished - 1999
Externally publishedYes
EventThick Composites for Load Bearing Structures - 1999 (The ASME International Mechanical Engineering Congress and Exposition) - Nashville, TN, USA
Duration: 1999 Nov 141999 Nov 19

Other

OtherThick Composites for Load Bearing Structures - 1999 (The ASME International Mechanical Engineering Congress and Exposition)
CityNashville, TN, USA
Period99/11/1499/11/19

Fingerprint

Compaction
Failure modes
Strain rate
Fibers
Composite materials
Materials testing
Compressive strength
Volume fraction
Hydraulics
Glass
Scanning electron microscopy
Polymers

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Oguni, K., & Ravichandran, G. (1999). Dynamic behavior of fiber reinforced composites under multiaxial compression. In American Society of Mechanical Engineers, Applied Mechanics Division, AMD (Vol. 235, pp. 87-96). ASME.

Dynamic behavior of fiber reinforced composites under multiaxial compression. / Oguni, Kenji; Ravichandran, G.

American Society of Mechanical Engineers, Applied Mechanics Division, AMD. Vol. 235 ASME, 1999. p. 87-96.

Research output: Chapter in Book/Report/Conference proceedingChapter

Oguni, K & Ravichandran, G 1999, Dynamic behavior of fiber reinforced composites under multiaxial compression. in American Society of Mechanical Engineers, Applied Mechanics Division, AMD. vol. 235, ASME, pp. 87-96, Thick Composites for Load Bearing Structures - 1999 (The ASME International Mechanical Engineering Congress and Exposition), Nashville, TN, USA, 99/11/14.
Oguni K, Ravichandran G. Dynamic behavior of fiber reinforced composites under multiaxial compression. In American Society of Mechanical Engineers, Applied Mechanics Division, AMD. Vol. 235. ASME. 1999. p. 87-96
Oguni, Kenji ; Ravichandran, G. / Dynamic behavior of fiber reinforced composites under multiaxial compression. American Society of Mechanical Engineers, Applied Mechanics Division, AMD. Vol. 235 ASME, 1999. pp. 87-96
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