CV
QR


Farshid Ahmadi

Farshid Ahmadi

Assistant Professor

College: Faculty of Mechanical Engineering

Department: Mechanical Engineering - Manufacturing and Production

Degree: Ph.D

CV
QR
Farshid Ahmadi

Assistant Professor Farshid Ahmadi

College: Faculty of Mechanical Engineering - Department: Mechanical Engineering - Manufacturing and Production Degree: Ph.D |

Dr. Farshid Ahmadi is a Faculty Member in the Department of Mechanical Engineering, University of Kashan. He is also an Engineering and Research Consultant. Dr. Ahmadi's research is multi-disciplinary and revolves around Metal forming, Ultrasonic assisted manufacturing, FEM,  Bio-Mechanics and Nano structured materials. 

He received his PhD in Mechanical Engineering from Isfahan University  of Technology (with the highest honor), as the first Ph.D. graduate of the department .

He has received numerous academic award, including 3th person among 7850 people in Mechanical Engineering Master Degree entering Exam award and Fellowship of National Elite Foundation. 

نمایش بیشتر

Dynamic instability region analysis of reinforced-CNTs truncated conical shells using mixed DQ-Bolotin method

Authorsحسین وثوق,فرشید احمدی,سعید گلابی
JournalStructural Engineering and Mechanics
Page number129
Volume number87
IF2.998
Paper TypeFull Paper
Published At2023-07-25
Journal GradeScientific - research
Journal TypeElectronic
Journal CountryIran, Islamic Republic Of
Journal IndexSCOPUS ,JCR

Abstract

In this paper, dynamic buckling of truncated conical shell made of carbon nanotubes (CNTs) composite is studied. In aerospace industries, this category of tructures is utilized extensively due to wide range of engineering applications. To calculate the effective material properties of the nanocomposite, The Mori-Tanaka model is applied. Also, the motion equations are derived with the assistance of the first order shear deformation theory (FSDT), Hamilton’s principle and energy method. Besides, In order to solve motion equations and analyze dynamic instability region (DIR) of the structure, mixed model of differential uadrature method (DQM) and Bolotin’s method is used. Moreover, investigation of the different parameters effects such as geometrical parameters and volume fraction of CNTs on the analysis of the DIR of the structure is done. In accordance with the obtained results, the DIR will occur at higher frequencies by increasing the volume fraction of CNTs.