Analysis of Complex Creep Compliance Functions at Low Frequencies

9 ANALYSIS OF COMPLEX CREEP COMPLIANCE FUNCTIONS AT LOW FREQUENCIES 

From Eqs. (6.24a) and (6.24b), the components of the creep compliance function for solids in the limit co 0 are given by 

Equations (6.40a) and (6.40b) indicate that / (O) = and / (O) = 0. In the low frequency region, the following scaling laws for sohds hold  

Accordingly, the loss compliance increases indefinitely as the frequency decreases. A straight line of slope —1 is obtained in the double logarithmic plot of / (co) against (o, that is, 

Equations (6.3) and (6.4) suggest the following expressions for the relaxation moduli of solids  

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