Dynamic behavior of fiber reinforced composites under multiaxial compression

Kenji Oguni, G. Ravichandran

研究成果: Chapter

6 引用 (Scopus)

抄録

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.

元の言語English
ホスト出版物のタイトルAmerican Society of Mechanical Engineers, Applied Mechanics Division, AMD
出版者ASME
ページ87-96
ページ数10
235
ISBN(印刷物)0791816524
出版物ステータスPublished - 1999
外部発表Yes
イベントThick Composites for Load Bearing Structures - 1999 (The ASME International Mechanical Engineering Congress and Exposition) - Nashville, TN, USA
継続期間: 1999 11 141999 11 19

Other

OtherThick Composites for Load Bearing Structures - 1999 (The ASME International Mechanical Engineering Congress and Exposition)
Nashville, TN, USA
期間99/11/1499/11/19

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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

これを引用

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

研究成果: Chapter

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