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Hossein Ashrafi

Hossein Ashrafi

Assistant Professor

College: Faculty of Mechanical Engineering

Department: Mechanical Engineering - Solid Design

Degree: Ph.D

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Hossein Ashrafi

Assistant Professor Hossein Ashrafi

College: Faculty of Mechanical Engineering - Department: Mechanical Engineering - Solid Design Degree: Ph.D |

  •  Position: Assistant Professor of Solid Mechanics and Applied Design
  •  Institution: Faculty of Mechanical Engineering, University of Kashan, Iran
  •  Researcher ID: P-8090-2014
  •  Scopus Author ID: 12793997500
  •  M.Sc. (Sept. 2005 – August 2008): Graduated from Shiraz University, with Overall GPA 17.67 out of 20.
  •  Ph.D. (Sept. 2010 – August 2014): Graduated from K.N. Toosi University, with Overall GPA 19.43 out of 20.
  • Address: No. 316, 3rd Floor, Faculty of Mech. Eng., University of Kashan, Ghotbravandi Blvd., Kashan, Iran
  • ​P.O. Box:  8731751167
  • Telephone:  (+98) 31 55913439
  • Fax:  (+98) 31 55913444
  • URL:  https://faculty.kashanu.ac.ir/hashrafi/en​

 

نمایش بیشتر

Combination of the simple BEM and ICA to detect a cavity inside a FG domain

AuthorsA. Shaker - M. Khodadad - H. Ashrafi
Conference Title26th Annual International Conference of Iranian Society of Mechanical Engineers
Holding Date of Conference2018/04/24
Event PlaceSemnan
PresentationSPEECH
Conference LevelInternational Conferences

Abstract

Detection of a cavity inside a functionally graded material (FGM) domain is considered as an inverse problem based on heat conduction equation and using only boundary measurements. The thennal property of the FGM is assumed to have quadratic variation in one direction. The boundary elements method (BEM) direct solution of theheat conduction through this kind of FGM is adapted at First. The imperialist C ompetitivc Algorithm (ICA) which is an evolutionary and meta-heuristic global optimizationis used in conjunction with the inverse application of BEM. An inverse computer code (with MATLAB) is developed which employs the boundary temperature measurements data obtained in this study by solving the direct boundary elements code with applying supposed thermal conductivity along with the geometry and cavity configuration. The solved example are verified to show the effectiveness of the approach and the accuracy of the developed code. The location and size of an internal circular cavity could be determined when thermal conductivity is known with this approach.

Paper URL