TY - JOUR
T1 - Modeling the viscoelastic function of asphalt concrete using a spectrum method
AU - Mun, Sungho
AU - Zi, Goangseup
PY - 2010/5
Y1 - 2010/5
N2 - A continuous spectrum method is proposed and applied for modeling the time-domain viscoelastic function of asphalt concrete materials. This technique, employing a Wiechert model for the relaxation function and a Kelvin model for the compliance function, is found to substantially enhance accuracy and consistency compared to existing methods. Furthermore, this paper shows how to determine a time-domain Prony series representation, which can be used efficiently for numerical analysis, such as finite element analysis, from the complex modulus in the frequency domain, based on the continuous spectrum method.
AB - A continuous spectrum method is proposed and applied for modeling the time-domain viscoelastic function of asphalt concrete materials. This technique, employing a Wiechert model for the relaxation function and a Kelvin model for the compliance function, is found to substantially enhance accuracy and consistency compared to existing methods. Furthermore, this paper shows how to determine a time-domain Prony series representation, which can be used efficiently for numerical analysis, such as finite element analysis, from the complex modulus in the frequency domain, based on the continuous spectrum method.
KW - Continuous spectrum
KW - Kelvin model
KW - Prony series representation
KW - Wiechert model
UR - http://www.scopus.com/inward/record.url?scp=77951254879&partnerID=8YFLogxK
U2 - 10.1007/s11043-009-9102-0
DO - 10.1007/s11043-009-9102-0
M3 - Article
AN - SCOPUS:77951254879
SN - 1385-2000
VL - 14
SP - 191
EP - 202
JO - Mechanics of Time-Dependent Materials
JF - Mechanics of Time-Dependent Materials
IS - 2
ER -