Lecture

Viscoelasticity: Principles and Applications

Description

This lecture covers the concept of viscoelasticity in polymer materials, emphasizing the time-dependent behavior and transitions in properties. It explains the importance of viscoelasticity in determining various properties, such as creep, fatigue, and processability. The lecture also delves into the phenomelogical description of viscoelasticity, including linear and non-linear behaviors. Dynamic Mechanical Analysis is discussed, focusing on shear experiments and the measurement of storage and loss moduli. The presentation concludes with the description of complex moduli to fully characterize the viscoelastic behavior of materials.

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