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Effect Of Shear Stresses On Failure Of Fibrous Composite Materials Accounting For Nonlinear Material Behavior

Submitted2013-09-22
Last Update2013-09-22
TitleEffect Of Shear Stresses On Failure Of Fibrous Composite Materials Accounting For Nonlinear Material Behavior
Author(s)Author #1
Author title:
Name: Ghazi Abu-Farsakh
Org: Professor of Structural Engineering, Civil Engineering Department, Jordan University of Science and Technology.
Country:
Email: ghazi@just.edu.jo

Other Author(s)
Contact AuthorAuthor #1
Alt Email: ghazi@just.edu.jo
Telephone:
KeywordsShear stress, Failure envelope, Composite material, Nonlinear behavior, Fiberorientation
AbstractVariation of shear stresses  xy on failure behavior of different composite materials was investigated for two types of composites; Boron-Epoxy Narmco 5505 and Carbon-Epoxy AS4 (3501-6). The effect of material nonlinearity on failure behavior of unidirectional fibrous composite laminates was considered for several fiber-orientation angles; ϴ=15, 30, 45, 60 and 75 degrees. An energy-based nonlinear material model was adopted to predict the mechanical properties of a unidirectional composite lamina. A compatible failure criterion for nonlinear composite materials was utilized which incorporates the material model into the failure criterion. The resulting failure envelopes were compared for all the cases.
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