Volume 15 (2022)
Volume 14 (2021)
Volume 12 (2019)
Volume 11 (2018)
Volume 10 (2017)
Volume 9 (2016)
Volume 8 (2015)
Volume 7 (2014)
Volume 6 (2013)
Volume 5 (2011-2012)
Volume 4 (2010-2011)
Volume 3 (2009-2010)
Volume 2 (2008-2009)
Volume 1 (2007-2008)
1. Design and Fabrication of a Composite Energy Absorber

Hamid Reza Shalian; Mohammad Hossein Alaee; Jafar Eskandari Jam; Mohsen Heydari Beni; Majid Eskandari Shahraki; Naser Asiaban

Volume 13, Issue 4 , December 2020, Pages 1-12


  In this paper, the quasi-static test and the damage of the thin-walled composite cylinder were numerically simulated using ABAQUS. Then, a comparison was made between the results of this simulation and those obtained from experimental studies followed by their validation. In the next step, several parameters ...  Read More

2. Multi-objective Optimization of Volute Springs using an Improved NSGA II

navid moshtaghi yazdani

Volume 13, Issue 4 , December 2020, Pages 13-19


  Due to the variable stiffness through their length, their resistance against buckling, damping characteristics due to the friction between their chains, and their small solid length, volute springs are widely used in applications where other mechanisms cannot be employed to provide variable spring stiffness. ...  Read More

3. Study on the Wettability and Optical Properties of Polydimethylsiloxane-SiO2 Nano-composite Surfaces

Reza Abedinzadeh; Hamid Shirian; Janan Parhizkar

Volume 13, Issue 4 , December 2020, Pages 21-29


  In this paper, the effects of different weight percentages of silica nano-particles on the wettability and optical properties of polymer based surfaces were investigated. The Polydimethylsiloxane (PDMS)-SiO2 nano-composites containing 0.5, 1, 2, 3 and 4 wt% silica were prepared and coated on the fabric ...  Read More

4. Analysis of Material Flow and Phase Transformation in Friction Hydro-Pillar Processing of 1045 Steel

Moosa Sajed; S. M. Hossein Seyedkashi

Volume 13, Issue 4 , December 2020, Pages 31-37


  In the present study, a 3D finite element model was developed using DEFORM commercial software to analyse the material flow and phase transformation, as two key phenomena affecting the joint properties in friction hydro-pillar processing of 1045 steel alloy. The microstructure changes significantly due ...  Read More

5. Numerical simulation of multilayer cellular scaffolds with 3D and 1D elements

Hamid Reza khanaki; Sadegh Rahmati; Mohammad Nikkhoo; Mohammad Haghpanahi; Javad Akbari

Volume 13, Issue 4 , December 2020, Pages 39-47


  In this paper, an attempt has been made to provide a numerical method for investigating the mechanical properties of multilayer scaffolding. These scaffolds can be used as implants in bone fractures. For this purpose two numerical simulation methods are introduced to predict the elastic properties of ...  Read More

6. Preparation of Nitrogen-Doped Graphene Aerogel/Epoxy Nanocomposites and Experimental Study of Mechanical Properties

ali kordi; saeed adibnazari; Ali Imam; mohammad najafi; maryam ghasabzadeh saryazdi

Volume 13, Issue 4 , December 2020, Pages 49-55


  Nitrogen-Doped Graphene Aerogel (N-GA) nanomaterials can significantly improve the functional efficiency of polymer composites due to its three-dimensional structure and suitable physical properties. The preparation process affects the performance improvement. In this study, the effect of preparation ...  Read More

7. Vibration Sensitivity Analysis of Nano-mechanical Piezo-Laminated Beams with Consideration of Size Effects

mostafa nazemizadeh; Firooz Bakhtiari-Nejad; Behrooz Shahriari

Volume 13, Issue 4 , December 2020, Pages 57-68


  The presented article investigates vibration sensitivity analysis of Nano-mechanical piezo-laminated beams with consideration of size effects. To do this, the vibration governing equation of the stepped Nano-mechanical piezo-laminated beam is firstly derived by implementation of the nonlocal elasticity ...  Read More

8. Joint Optimization of Spare Parts Strategy and Maintenance Policies for Manufacturing Systems

mohammadali farsi; Enrico Zio

Volume 13, Issue 4 , December 2020, Pages 69-77


  Cost is the most important factor in engineering systems, thus cost reduction and producing components with a reasonable cost are mandatory for manufacturing engineers. Effective maintenance influences the total cost of manufacturing systems, and its efficiency depends on spare parts management. Therefore, ...  Read More

9. Geometric Optimization of APCs anti Explosion Blades using LS-DYNA Finite Element Software

Jalil Jamali; alireza rezaie

Volume 13, Issue 4 , December 2020, Pages 79-87


  In this research, several different types of geometries have been compared to prevent the influence of an explosion wave on the glasses of the APCs. This was done using validation and then using LS-DYNA software. Pre and post-processing was done in LS-PrePost software. So, a mathematical function in ...  Read More

10. Quick and Effective Modal and Flutter Analyses for Low Aspect Ratio Wings

Masoud Basiri; Hamid Farrokhfal; Masoud Mosayebi; Reza Koohi

Volume 13, Issue 4 , December 2020, Pages 89-97


  In the present work, an analytical study is proposed to investigate the flutter behavior of low-aspect-ratio wings in subsonic flow. An equivalent plate model is used for structural modelling of a semi-monocoque main wing, consisting of ribs, skins, and spars. Legendre polynomials are used in the Rayleigh-Ritz ...  Read More

11. Investigation of the AFM Indenter’s Geometry Effect On Micro/Nano Biological Cells’ Indentation

Yousef Habibi Sooha; Moharam Habibnejad; Zahra Rastegar

Volume 13, Issue 4 , December 2020, Pages 99-108


  The elasticity modules of the micro/Nanoparticles, especially biological particles are measured using different tools such as atomic force microscopy. The tip of the atomic force microscopy as an indenter has different shapes such as spherical, conical and pyramidal. In the contact of these tips and ...  Read More

12. Influence of Tool Offset Distance on Microstructure and Mechanical Properties of the Dissimilar AA2024–AA7075 Plates Joined by Friction Stir Welding

Hossain Soleimany; kamran amini; Farhad Gharavi

Volume 13, Issue 4 , December 2020, Pages 109-120


  In the present study, the effect of tool offset on microstructure and mechanical properties of dissimilar friction stir welding of Al2024 and Al7075 alloys were investigated. In this regard, base metals were welded by FSW under different tool offsetting conditions, 1.5 and 2 mm shifted into Al2024 and ...  Read More