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Strength of Composite Sandwich Plate toward Extreme Load<br />

Khairul Azwa Bin Adnan<br />

Supervisor: Dr. Anuar Bin Abu Bakar<br />

Bachelor of Applied Science (Maritime Technology)<br />

School of Ocean Engineering<br />

Universiti Malaysia Terengganu<br />

Composite sandwich plate is defined as a three-layer type of a material structure that<br />

consists of two thin face sheets of high strength composite materials and a middle<br />

layer composite material with low to average strength. The composite structure is<br />

widely used in the marine industry especially in military applications. The structure<br />

potentially exposed to impact or blast loading during the combat operations and may<br />

suffer significant damage. The damage will result in a reduction of strength and<br />

stiffness. In this paper, finite element analysis will be used to evaluate the dynamic<br />

performance of E-glass vinyl Ester composite which is well known for its ability to<br />

withstand water absorption and anti-corrosion. The simplified model will be subjected<br />

to blast and projectile impact loading for predicting the transient response and damage<br />

initiation of a honeycomb core composite sandwich plate. The finite element analysis<br />

(FEA) used to investigate the deformations of the core through the thickness wave<br />

propagation phase and global panel caused by transverse shear wave propagation.<br />

The results will be compared with available analytical predictions.<br />

218 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2 0 1 9

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