Vummadisetti, Sudhir
Postbuckling response of functionally graded hybrid composite plates under combined uniaxial compression and in-plane shear loads - Vol.48, Issue 4 - Chennai 2021 - 235-254p.
The postbuckling response of functionally
graded hybrid composite plates subjected to
combined uniaxial and in-plane shear loading
conditions is numerically investigated in the
present study. The finite element formulation-
based software ABAQUS has been used for the
numerical study. Eigen buckling analysis and
Tsai-Hill failure criteria are used to determine
critical buckling and first ply failure loads,
respectively. Functionally graded composite
plates with and without cutouts are considered
for the study. Five different shapes and three
different sizes of cutouts at the center of the
plate have been taken to examine the response
under the combined in-plane loads. Effect of
(0/90)4s, (+45/-45)4s, and (+45/-45/0/90)2s
fiber stacking sequences are also examined. It is
shown that, diamond-shaped cutout of small size
among the cutouts performs better in terms of
buckling and first ply failure loads of the plates
under compressive loads combined with
negative in-plane shear load. The (+45/-45)4s
stacking sequence has the highest buckling and
failure loads in comparison to other layup
sequences
Civil Engineering
Buckling Combined Loads First Ply Failure
Postbuckling response of functionally graded hybrid composite plates under combined uniaxial compression and in-plane shear loads - Vol.48, Issue 4 - Chennai 2021 - 235-254p.
The postbuckling response of functionally
graded hybrid composite plates subjected to
combined uniaxial and in-plane shear loading
conditions is numerically investigated in the
present study. The finite element formulation-
based software ABAQUS has been used for the
numerical study. Eigen buckling analysis and
Tsai-Hill failure criteria are used to determine
critical buckling and first ply failure loads,
respectively. Functionally graded composite
plates with and without cutouts are considered
for the study. Five different shapes and three
different sizes of cutouts at the center of the
plate have been taken to examine the response
under the combined in-plane loads. Effect of
(0/90)4s, (+45/-45)4s, and (+45/-45/0/90)2s
fiber stacking sequences are also examined. It is
shown that, diamond-shaped cutout of small size
among the cutouts performs better in terms of
buckling and first ply failure loads of the plates
under compressive loads combined with
negative in-plane shear load. The (+45/-45)4s
stacking sequence has the highest buckling and
failure loads in comparison to other layup
sequences
Civil Engineering
Buckling Combined Loads First Ply Failure