Dynamic behavior investigation of laminate composite plate

الملخص EN

An experimental investigation had been done to demonstrate the dynamic behavior of laminate composite plate.

Four types of composite plates were produced that (E-glass woven roving + unidirectional carbon / unsaturated polyester, E-glass woven roving + unidirectional carbon/ epoxy, unidirectional carbon / unsaturated polyester and unidirectional carbon/epoxy) with 6 layers at (30%) fiber volume fraction.

Mechanical properties were evaluated in terms of tensile and impact strengths.

In fatigue tests, the specimens were investigated to estimate the basic S-N curve and deduce their relations.

Plate fixed from all sides and a steel ball of 23g was freely dropped from height of 1m.

Dynamic response of plate was investigated by measuring strain using vibration data collector (TVC200).

The mechanical properties and the dynamic response tests done at 30ºC, 0ºC and (-30) ºC temperature which is realistic and exist within everyday life in winter.

A special refrigerator for this purpose was manufactured to get the temperature required.

The results showed that the Carbon/Epoxy composite plate has higher mechanical properties and fatigue limits, with lower deflection as compared with other plates.

The mechanical properties were found to be increased and the deflection decreased with the temperature decreased.