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Full-Text Articles in Engineering
Baseline Rolling Resistance For Tires’ On-Road Fuel Efficiency Using Finite Element Modeling, Jaime Hernandez, Imad L. Al-Qadi, Hasan Ozer
Baseline Rolling Resistance For Tires’ On-Road Fuel Efficiency Using Finite Element Modeling, Jaime Hernandez, Imad L. Al-Qadi, Hasan Ozer
Civil and Environmental Engineering Faculty Research and Publications
Calculation of truck tires rolling resistance, using the finite element method and considering variables such as incompressible visco-hyperelastic rubber materials, accurate tire geometry and steady temperature distribution, is presented. The model was validated using experimentally measured contact area and contact stresses. Rolling resistance was calculated for three values of axle load, tire inflation pressure, temperature and speed. In addition, regression analysis was used to propose a mathematical expression for predicting rolling resistance as a function of the considered variables. Finally, the contribution of tire’s rubber components to the internal energy was quantified, and it was found that sidewall and subtread …
Tire-Pavement Interaction Modeling: Hyperelastic Tire And Elastic Pavement, Jaime Hernandez, Imad L. Al-Qadi
Tire-Pavement Interaction Modeling: Hyperelastic Tire And Elastic Pavement, Jaime Hernandez, Imad L. Al-Qadi
Civil and Environmental Engineering Faculty Research and Publications
The interaction between deformable tire and pavement was studied using the validated finite element model; the full understanding of tire–pavement contact has implications for pavement damage prediction and pavement life-cycle assessment (fuel consumption estimation). The tire’s rubber and reinforcement were considered hyperelastic and linear elastic, respectively, with material constants obtained from the tire manufacturer (rubber) and laboratory testing (reinforcement). On the other hand, the pavement was assumed linear elastic supported by linear elastic springs. This assumption was made as a first step to examine the impact of using a deformable-on-deformable tire–pavement system to predict energy in the tire and contact …