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
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.
, where a general discrete model--generalized Kelvin or Maxwell--is used to fit the complex compliance or complex modulus