Understanding Creep in Viscoelastic Materials

What does 'creep' refer to in the context of viscoelastic materials?

• Elasticity of the material

• Ability to resist deformation

• Gradual elongation under constant load

• Immediate recovery after load removal

What is expected when a constant force is applied to a viscoelastic material?

• The material will compress

• The material will immediately return to original shape

• The material will not deform

• The material will elongate gradually

In an experiment, what does the deformation of a material sample indicate?

• The strength of the material

• The color change in the material

• The elasticity of the material

• The response to applied force

What happens to the deformation of a material when the applied force is removed?

• It remains constant

• It increases further

• It changes the material to a new chemical composition

• It decreases, potentially recovering

What is meant by 'permanent deformation'?

• Deformation that partially recovers

• Deformation that changes periodically

• Deformation that does not recover at all

• Deformation that completely recovers

How does a viscoelastic material behave under dynamic loading?

• Becomes more rigid

• May show delayed response in deformation

• Does not deform

• Shows immediate full recovery

What does 'viscoelastic phase lag' refer to?

• The increase in material stiffness

• The delay in deformation response to applied force

• The sound emitted during deformation

• The color change under stress

How does the deformation response of a viscoelastic material to a sinusoidal force input manifest?

• Immediate alignment with force peaks

• Delayed alignment, showing phase lag

• No deformation occurs

• Random deformation patterns

What practical application does understanding viscoelastic behavior have?

• Enhancing electrical conductivity

• Designing more colorful materials

• Increasing material transparency

• Reducing vibrations in car engines

What role do dampers play in mechanical systems?

• Change material properties

• Increase vibration

• Reduce response to vibrations

• Decrease load capacity