Fatigue analysis of the railway wheels of the CRH2 high speed train due to random parameters

Mazuri Erasto Lutema; Awel Mohammedseid Momhur

Volume 13, Issue 2 , March 2024, , Pages 207-218


  The most crucial parts that literally sustain the safety of railroad rolling stock from the subfloor are the wheels. However, during operation, several random parameters can impair their performance, resulting in the train's unsafety. These unpredictable characteristics can lead to fatigue failure, especially ...  Read More

Dynamic Response
Numerical response using finite strip element including drilling degree of freedom

J. Akbari; H. Valaei; M. F. Sepahvand

Volume 12, Issue 2 , February 2023, , Pages 177-191


  Finite-element modeling of structures using elements without rotational degrees of freedom (DOFs) is usually stiffer than their physical behavior. Therefore, the stiffness of a structural system will be smoothed by adding rotational DOFs in the numerical model. In the traditional displacement-based finite-element ...  Read More

Composite Materials
Effects of the asymmetric behavior of the shape memory alloy on nonlinear dynamic responses of thick sandwich plates with embedded SMA wires

Aidin Ghaznavi; Mohammad Shariyat

Volume 9, Issue 2 , February 2020, , Pages 183-197


  In the present article, the dynamic behavior of sandwich plates with embedded shape memory alloy (SMA) wires is evaluated for two cases wherein (i) the stress-strain curve of the superelastic behavior of the SMA wires is symmetric and (ii) the mentioned curve is non-symmetric. A modified version of Brinson’s ...  Read More

Composite Materials
Generalized solution of functionally graded hollow cylinder under torsional load

Y. Bayat; M. Alizadeh; A. Bayat

Volume 2, Issue 2 , June 2013, , Pages 23-32


  In this paper, a general solution for torsion of hollow cylinders made of functionally graded materials (FGM) was investigated. The problem was formulated in terms of Prandtl’s stress and, in general, the shear stress and angle of twist were derived. Variations in the material properties such as ...  Read More

Manufacturing Processes
Experimental and numerical investigation on laser bending process
Volume 1, Issue 1 , December 2011, , Pages 45-52


  Laser bending is an advanced process in sheet metal forming in which a laser heat source is used to shape the metal sheet. In this paper, temperature distribution in a mild steel sheet metal is investigated numerically and experimentally. Laser heat source is applied through curved paths in square sheet ...  Read More