Effect Of Shear Stresses On Failure Of Fibrous Composite Materials Accounting For Nonlinear Material Behavior
|Title||Effect Of Shear Stresses On Failure Of Fibrous Composite Materials Accounting For Nonlinear Material Behavior|
Name: Ghazi Abu-Farsakh
Org: Professor of Structural Engineering, Civil Engineering Department, Jordan University of Science and Technology.
|Contact Author||Author #1|
Alt Email: firstname.lastname@example.org
|Keywords||Shear stress, Failure envelope, Composite material, Nonlinear behavior, Fiberorientation|
|Abstract||Variation 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.|