Creep modulus vs. time

Figure 3-93. Flexural Creep Modulus vs Time at 75 F for Polycarbonate ...

Figure 8-175. Tensile Creep Modulus vs Time at Figure 3-176. Alternating ...

Fig. 2-32 Example of plotting the apparent creep modulus vs. log time.

Figure 3-70. Flexival Creep—Apparent Modulus vs Time for Nylon 6/6,30% Glass Reinforced ...

Figure 3-132. Flexural Creep—Apparent Modulus vs Time of 20% and 40% Glass-Reinforced PE"...

Figure 3-157. Flexural Creep — Apparent Modulus vs Time for 20% and 40% Glass-Reinforced...

Figure 3-184. Flexural Creep-Apparent Modulus vs Time for Acrylafil"...

Flexural Creep —Apparent Modulus vs Time for Acrylafil. 3-76... 

The creep compliance and/or relaxation modulus of a rock can be measured either as the function of temperature within a certain time or as the function of time at a constant temperature. In principle, a complete curve of compliance vs. time can be measured at any temperature. Such a complete curve is called main curve of relaxation modulus at that temperature. 

For depth-sensing nanoindentation, a controlled, variable force is applied to a sample by the indenter and the resulting displacement of the indenter is measured. The resulting load vs. displacement data, together with the indenter geometry, can be analyzed to obtain hardness and elastic modulus using well established mechanical models (14). The simultaneous measurement of load and displacement also allows study of creep (time dependent strain response due to a step change in stress) (15,16). 

---