Estimation of Residual Stress Distribution in Railroad Wheels

摘要: Residual stresses in railroad wheel rims significantly affect the failure life; therefore, it is important to consider residual for analysis. In this paper, an advanced computational methodology developed estimate during both manufacturing process and under service conditions. To wheel, three-dimensional decoupled thermal-structural analyses are performed. simulate process, thermal analysis performed with convection boundary conditions on surfaces. The temperature distributions obtained from input as loads structural results represent as-manufactured stresses. brake loading conditions, using a heat flux condition tread surface. Structural performed, including estimated stress initial stress, of on-tread braking. resultant complex combination computed compared experimental data at TTCI values reported literature.Copyright © 2009 by ASME