State Hooke's Law and Define stress and strain.
[3 marks]Describe the structure of an ideal rubber.
[4 marks]Compare the creep and stress relaxation behaviors in detail.
[7 marks]Mention different types of non-Newtonian fluids.
[3 marks]Discuss the difference between elastic and plastic deformation.
[4 marks]Predict stress relaxation using four-parameter model equations.
[7 marks]Explain the importance of Poisson’s Ratio and Derive equations for relation between the different modulus.
[7 marks]Arubber specimen of 10 cm length is stretched to 12 cm under 50 Nload. Calculate the strain and stress developed.
[3 marks]List out the factors affecting viscosity.
[4 marks]Assess the role of microstructure on non-Newtonian flow behavior.
[7 marks]Calculate the Young’s modulus of rubber if a tensile stress of 1.2 MPa produces a strain of 0.4.
[3 marks]Give the concept of Auxetic materials with suitable examples and figures.
[4 marks]Differentiate between Newtonian and non-Newtonian fluids in detail.
[7 marks]Write a brief note on Newton’s model.
[3 marks]Describe the glass transition phenomenon in elastomers.
[4 marks]Elaborate in detail about “Superposition principle”.
[7 marks]Discuss viscosity theory in polymers.
[3 marks]Interpret the relationship between molecular weight and Tg. Page 1 of
[2 marks]Discuss the Maxwell model in detail.
[7 marks]List the experimental methods used for measuring viscosity.
[3 marks]Describe the kinetic theory of rubber elasticity.
[4 marks]Discuss in detail about the transition and associated properties of glass transition temperature.
[7 marks]Explain the importance of viscosity in elastomers.
[3 marks]Explain the concept of viscoelasticity.
[4 marks]List out the factors affecting glass transition temperature and explain it in detail with example. Page 2 of
[2 marks]