EFFECT OF LOW VELOCITY IMPACT DAMAGE ON COMPOSITE PLATES

Document Type : Original Article

Authors

1 Assistant professor, Dpt. of Mechanical Eng., Selcuk University, Konya, Turkey.

2 Graduate student, Dpt. of Mechanical Eng., Selcuk University, Konya, Turkey.

3 Assistant professor, Kadinhani Faik Icil Vocational School, Selcuk University, Konya, Turkey.

4 Lecturer, Kadinhani Faik Icil Vocational School, Selcuk University, Konya, Turkey.

5 Research Assistant, Dpt. of Mechanical Eng., Selcuk University, Konya, Turkey.

Abstract

ABSTRACT
In this study unidirectional E-glass/epoxy composite plates were tested. The panels
were cut into specimens of 140x140 mm in dimension with an average thickness of 3
mm and stacking sequence of [+45/-45/90/0]2s The impact tests performed with
impactor mass (18 kg) at five different impact velocities (2.0, 2.5, 3.0, 3.5 and 4.0 m/s)
were conducted with a specially developed vertical drop weight testing machine. The
diameter of the impactor with a hemispherical nose was 24 mm. The center of each
plate was exposed to impact loading. The differences in the impact responses of
specimens with varying impact velocities are characterized.

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