ABSTRACT
DMTA (or DMA)-the exciting of a material with a periodic stress and monitoring of the resultant strain-has become a commonly used technique for both scientists and engineers who need to know the viscoelastic properties of a material with respect to temperature, humidity, vibration frequency, dynamic or static strain amplitude, or other parameter against time. This chapter will attempt to introduce its principles, cover a short history of the technique relating it to other mechanical tests, and discuss its application to a wide range of polymers and other materials.
