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Mohammad Javad Khoshgoftar

Mohammad Javad Khoshgoftar

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0002-7942-6877
Education: PhD.
ScopusId: 35119188800
Faculty: Engineering
Address: Arak University
Phone: 08632625005

Research

Title
Mixed Elastic Modeling of Multilayer Composite Plates by using Dimension Reduction Approach
Type
JournalPaper
Keywords
mixed variational formulation, Hellinger-Reissner principal, linear elastic, laminated plate, elastic analysis
Year
2019
Journal Journal of Stress Analysis
DOI
Researchers Mohammad Javad Khoshgoftar ، Mehdi Shaban

Abstract

In this paper, a mixed modeling approach for orthotropic laminated plates is developed. By adopting Hellinger-Reissner functional and dimension reduction method along the thickness, the governing equations were derived. By considering other theories i.e. classical plate theory, first order shear deformation theory and elasticity theory, the advantages of the current work are illustrated with some numerical results. Excellent agreements were observed by comparing the obtained results with three-dimensional elasticity theory for laminated thick plates. In the presented method, shear correction factor was not required for considering shear strain components. Furthermore, finite element simulation was implemented in Abaqus software by using two-dimensional shell elements and compared with obtained results. It is seen that although finite element model predicts good results for displacement field but it cannot provide any suitable results in thickness direction.