List of Articles Perturbation method Open Access Article Abstract Page Full-Text 1 - Tangential Displacement and Shear Stress Distribution in Non-Uniform Rotating Disk under Angular Acceleration by Semi-Exact Methods S Jafari 10.22034/jsm.2019.1879783.1504 20.1001.1.20083505.2020.12.4.8.0 Open Access Article Abstract Page Full-Text 2 - Analysis of Coupled Nonlinear Radial-Axial Vibration of Single-Walled Carbon Nanotubes Using Numerical Methods A Fatahi-Vajari Z Azimzadeh 10.22034/jsm.2019.1876588.1481 20.1001.1.20083505.2020.12.4.10.2 Open Access Article Abstract Page Full-Text 3 - Analysis of Nonlinear Vibration of Piezoelectric Nanobeam Embedded in Multiple Layers Elastic Media in a Thermo-Magnetic Environment Using Iteration Perturbation Method M.G Sobamowo 10.22034/jsm.2021.1911067.1648 20.1001.1.20083505.2022.14.2.7.9 Open Access Article Abstract Page Full-Text 4 - Free Vibration Analysis of a Nonlinear Beam Using Homotopy and Modified Lindstedt-Poincare Methods M.T Ahmadian M Mojahedi H Moeenfard 20.1001.1.20083505.2009.1.1.4.3 Open Access Article Abstract Page Full-Text 5 - Analytical and Numerical Modelling of the Axisymmetric Bending of Circular Sandwich Plates with the Nonlinear Elastic Core Material A Kudin S Choporov Yu Tamurov M.A.V Al Omari 20.1001.1.20083505.2016.8.3.10.2