%0 Journal Article
%T Constitutive Behavior and Finite Element Analysis of FRP Composite and Concrete Members
%A Ki Yong Ann
%A Chang-Geun Cho
%J Materials
%D 2013
%I MDPI AG
%R 10.3390/ma6093978
%X The present study concerns compressive and flexural constitutive models incorporated into an isoparametric beam finite element scheme for fiber reinforced polymer (FRP) and concrete composites, using their multi-axial constitutive behavior. The constitutive behavior of concrete was treated in triaxial stress states as an orthotropic hypoelasticity-based formulation to determine the confinement effect of concrete from a three-dimensional failure surface in triaxial stress states. The constitutive behavior of the FRP composite was formulated from the two-dimensional classical lamination theory. To predict the flexural behavior of circular cross-section with FRP sheet and concrete composite, a layered discretization of cross-sections was incorporated into nonlinear isoparametric beam finite elements. The predicted constitutive behavior was validated by a comparison to available experimental results in the compressive and flexural beam loading test.
%K FRP and concrete composite
%K constitutive behavior
%K compressive test
%K bending test
%K mixed finite element
%U http://www.mdpi.com/1996-1944/6/9/3978