10 فروردین 1403
سيد حامد معراجي

سید حامد معراجی

مرتبه علمی: استادیار
نشانی: دانشکده مهندسی - گروه مهندسی عمران
تحصیلات: دکترای تخصصی / مهندسی عمران
تلفن: 07733440376
دانشکده: دانشکده مهندسی

مشخصات پژوهش

عنوان Dynamic response analysis of viscoelastic pavement using differential quadrature element method
نوع پژوهش مقالات در نشریات
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مجله International Journal of Pavement Engineering
شناسه DOI
پژوهشگران سینا رامش خواه (نفر اول) ، محمود ملکوتی علون آبادی (نفر دوم) ، پرویز ملک زاده (نفر سوم) ، سید حامد معراجی (نفر چهارم)

چکیده

This paper proposes a methodology which is composed of di?erential quadrature element method (DQEM) and Newmark’s time integration scheme for response analysis of viscoelastic pavement under vehicular loads. An incremental form of Boltzmann’s correspondence principle together with the generalised Maxwell–Wiechert model is employed to simulate the viscoelastic stress-dependent behaviour of asphalt concrete. The obtained incremental constitutive relations and equations of motion under the axisymmetric conditions are discretised using the DQEM and Newmark’s scheme in the spatial and temporal domain, respectively. A computer code based on the presented formulation is developed to provide the numerical results. The fast rate of convergence of the method is numerically demonstrated, and its high accuracy is exhibited by comparing the results with existing solutions in the literature, and also with those of ABAQUS software. Finally, the axisymmetric viscoelastic pavement under vehicular loading with di?erent asphalt materials and thicknesses, and di?erent values of the load duration of vehicles are analysed both quasi-statically and dynamically.