Composite Sandwich Core Fabrication

What is definition of sandwich structure?

• Consists of low strength facings or skins, being adhesively bonded to the high density core

• Consists of high strength facings or skins, being adhesively bonded to the low density core

• Consists of fibreglass core and being adhesively with epoxy resin

Select the true statement about core material

• Usually low density material

• Place in the middle of a sandwich construction

• Required high strength of core material

Define face sheet /skin layer of sandwich composite.

• The outermost layer, generally thin and of high density.

• The central layer, generally thick and of low density,

• The outer layer of composite, generally low strength of material.

What the function of adhesives in sandwich construction?

• To bind the core and the facing

• To bind the fibre

• To glue the core and the fibre

What is CTT stands for?

• Core Template Transplant

• Core Trim Template

• Core Testing Template

What you should do if the burr quality level is not in a range of acceptable limit?

• Sanding the burr by sand paper

• Cutting the burr by using knife

• Blowing the burr by pressure air

What are the purpose of core dry?

• To remove moisture on the core surfaces

• To reduce dust on the core

• To avoid damage on the core

Choose the purpose of serviceable tag should be tag with serviceable core.

• To smooth the core selection process

• To enhance the strength of the core

• To avoid the core from damage

What is the function of core chamfering?

• To lower the strength on the sandwich composite

• To avoid damage on the core in sandwich construction

• To minimize the defect during laminating sandwich construction

Which is correct about PPE?

• PPE is stands for Personal Protective Equipment

• Google is one type of PPE

• Brush and cotton rag is use as PPE during laminating process