Prof. Mohammad Azadi
Prof. Mohammad Azadi
Semnan University, Iran
Title: A review on recent advances in additive manufacturing: 4D-printing against 3D-printing in addition to nanotechnology
Todays, printing layer by layer of materials has been widely used to fabricate complex geometries, entitled "additive manufacturing". 3D-printers are devices for such an objective, comparing to 4D-printing, which could be utilized to build "smart materials". In 4D-printing, engineers have 3D-printers with another dimension of the time or the shape. In addition to this fourth dimension, nanotechnology could be applied for superior properties in the material. The application of these techniques is in all industrial areas including automotive engineering, aerospace engineering, biomechanics engineering, etc. Therefore, in this article, it will be concluded advances, challenges and future opportunities in the field of 4D-printing against 3D-printing plus to nanotechnology.

Additive manufacturing; 4D-printing; 3D-printing; Nanotechnology
Mohammad Azadi was born in Shiraz, Iran in 1983. He received B.Sc. and M.Sc. degrees in mechanical engineering from Shiraz University, Shiraz, Iran and K.N. Toosi University of Technology, Tehran, Iran, respectively, in 2006 and 2008; and then, the Ph.D. degree in mechanical engineering from Sharif University of Technology, Tehran, Iran, in 2013. During his Ph.D., he has awarded an exchange program by the Ministry of Science, Research and Technology and also Irankhodro Powertrain Company, in order to perform a fatigue testing project in University of Leoben, Leoben, Austria, 2012.
From 2008 to 2015, he has worked in Irankhodro Powertrain Company, Tehran, Iran and for last two years, he was a project manager of a national turbo-charged engine. Since 2015, he has been an Assistant Professor in the Faculty of Mechanical Engineering, Semnan University, Semnan, Iran. Now, He is an Associate Professor, since 2019.
He is the author of two chapter-books, two conference proceedings, more than 90 journal articles, about 110 conference papers and 12 patents. He has been also funded to perform 8 research projects by Iranian universities and industries; in addition to one international project, entitled "Iran-Austria Impulse". He is an advisory board of International Journal of Engineering and also a reviewer in different ISI journals, such as International Journal of Fatigue and Materials Science and Engineering A. His research interests include solid mechanics, fatigue, fracture and creep, numerical methods, surface engineering, materials characterization, design of experiments, with the application of engine, aerospace and automotive industries, besides biomechanics. Nowadays, he is working on additive manufacturing to fabricate composites and nano-composites by 3D-printing, in order to evaluate fatigue properties of materials.