For what purpose do you study the complex modulus at such small strain amplitudes? As far as I know, during the operation of a road structure, the amplitude of relative deformation from the passage of vehicles is from 30 to 350 microstrains in asphalt concrete.
The point here was to check for linearity. In any case, under a loading event, if you consider all locations within the pavement, the vast majority experience very small strains. Only in the vicinity of the loading some points experience medium to small strain levels.
@@levenberg Thank you very much! I think that the change in the value of the complex module is associated with a change in the speed of influence. The frequency of impact remains the same, but the relative deformation changes, thereby changing the rate of deformation. Asphalt concrete exhibits rheological properties. Will your research somehow influence the design characteristics of asphalt concrete when designing road pavements?
This work is more relevant to fundamental characterization of asphalt concrete. Design requires simplifications for which the complex modulus approach will remain applicable.
Interesting 🤔
For what purpose do you study the complex modulus at such small strain amplitudes? As far as I know, during the operation of a road structure, the amplitude of relative deformation from the passage of vehicles is from 30 to 350 microstrains in asphalt concrete.
The point here was to check for linearity. In any case, under a loading event, if you consider all locations within the pavement, the vast majority experience very small strains. Only in the vicinity of the loading some points experience medium to small strain levels.
@@levenberg Thank you very much! I think that the change in the value of the complex module is associated with a change in the speed of influence. The frequency of impact remains the same, but the relative deformation changes, thereby changing the rate of deformation. Asphalt concrete exhibits rheological properties. Will your research somehow influence the design characteristics of asphalt concrete when designing road pavements?
This work is more relevant to fundamental characterization of asphalt concrete. Design requires simplifications for which the complex modulus approach will remain applicable.