Journal
COMPOSITE STRUCTURES
Volume 275, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2021.114408
Keywords
Geometrical nonlinear analysis; Compositional gradient exponents; Composite structures; Functionally Graded Materials; Carrera Unified Formulation
Categories
Funding
- Scientific and Technological Research Council of Turkey (TUBITAK)
Ask authors/readers for more resources
This paper investigates the nonlinear behavior of beams with FGM using CUF, extending kinematic variants with LW approach and LE. The displacement and stress distributions of FG beams under different compositional gradient exponents are studied, and it is found that the combined formulation is time-efficient and highly sensitive in determining the nonlinear behavior.
In this paper, the nonlinear behavior of beams with one-dimensional (1D) Functionally Graded Materials (FGM) is investigated by Carrera Unified Formulation (CUF). In the study, kinematic variants of CUF are extended with Lagrange Extension (LE), thus adopting Layer-Wise (LW) approach. In the CUF formulation combined with geometric nonlinear equations, the Lagrangian approximation and Newton-Raphson linearization scheme are used with the method based on arc length constraint. It is assumed that the variation of material properties in the thickness direction follows an exponential grading. The displacement and stress distributions of the Functionally Graded (FG) cantilever beam under transverse/axial loading are investigated for different compositional gradient exponents. The three-dimensional (3D) stress distributions of FG beams are investigated with the 1D CUF model and the results are confirmed by the literature. The effect of the compositional gradient exponent on the mechanical behavior is expressed and it is emphasized that the combined formulation is time-efficient and highly sensitive in determining the nonlinear behavior.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available