Phase angle as a function of
complex modulus of unmodified PHB (PHB_ex), PHB treated with a mixture of TBPB and DVB (PHB_3A) and additionally plasticized with rapeseed oil (PHBJB) and PHB plasticized with PEG (PHB_4A-C).
Caption: FIG 3: Schematic Illustration of Viscoelastic Properties: The
complex modulus (or Young's modulus) can be thought of as the hypotenuse of a right triangle, while the elastic and viscous modulus represent the other two sides.
In this section,
complex modulus method is proposed to identify loss factor of fiber-reinforced composites, which is based on the established damping model of composite thin plate, and its theoretical principle is explained in the following.
4 represents the energy dissipation obtained during one cycle of
complex modulus test.
The results seem to indicate that the
complex modulus (G*) increases with the addition of crumb rubber.
Variation in
complex modulus (E*) with temperature and (inset) variation in complex compliance (J*) with temperature in the PC-GF composites.
Master Curve for the
Complex Modulus. The equation for describing the
complex modulus master curve of asphalt mixtures in the CAM model is shown in formula (2).
Suppose that [E.sup.*.sub.c] can be used to represent elastic modulus of hard coating, which is defined as
complex modulus:
This analysis allows separation of the viscoelastic material response to two components of
complex modulus: a real part E' [MPa] and an imaginary part E" [MPa].
Adding 5% CR to TLA at a load frequency of 15.9Hz resulted in a twenty five fold increase in the
complex modulus whereas the increase was approximately two hundred times at a load frequency of 0.1 Hz.
[21], where a general discrete model--generalized Kelvin or Maxwell--is used to fit the complex compliance or
complex modulus, respectively.
