Question

Select the incorrect statement from the following option.

(a) Laminar composites consist of 2-D sheets that are stacked and subsequently cemented together

(b) Sandwich panels consist of two stronger outer sheets separated by a layer of less dense core material

(c) Core material should be heavy-weight and low corrosion resistance

(d) The stiffness of the sandwich panel increases as the core thickness increases

This question was addressed to me in semester exam.

The question is from Polymeric Composites topic in division Polymers of Engineering Chemistry I

Answer 1

Right answer is (c) Core material should be heavy-weight and low corrosion resistance

The best explanation: Core material should be light-weight and high corrosion resistance. All the other options are correct. Laminar composites consist of 2-D sheets that are stacked and subsequently cemented together. Sandwich panels consist of two stronger outer sheets separated by a layer of less dense core material and the stiffness of the sandwich panel increases as the core thickness increases.