文档介绍：
o thermoplastic material?
Reinforce
4,In contrast with metal and thermoplastic material, which has a higher coefficient of thermal expansion(CTE).
Composite materials
5,The most suitable material for a integral hinge design(typical plastic thickness= to at hinge)
Nylon
6, Can a bending load makes both compressive and tensile stress in a member?
yes
7, What is the design criteria used in plastics catch/snap?
8,What is FEA?
Finite element analysis
9,Why is natural frequency important in vibration analysis?
Because the frequency of vibration has nothing to do with initial conditions, but the natural characteristic
10,What is the deflection equation of a cantilever beam fixed at one edge?
EIzv=M(x)=F(x-l)
德尔福机械类试题：
1,Briefly describe what is blanking(cutting),forming,coining and embossing in stamping process.
2,What is metal clading?
3,What is the purpose of adding glass fiber to thermoplastic material?
4,In contrast with metal and thermoplastic material,which has a higher coefficient of thermal expansion(CTE).
5,The most suitable material for a integral hinge design(typical plastic thickness= to at hinge)
6,Can a bending load makes both compressive and tensile stress in a member?
7,What is the design criteria used in plastics catch/snap?
8,What is FEA?
9,Why is natural frequency important in vibration analysis?
10,What is the deflection equation of a cantilever beam fixed at one e