A New Hexahedral Element with Embedded Interface for Crack Analysis in Delaminated Composite Beams
Publish place: 10th International Congress on Civil Engineering
Publish Year: 1394
Type: Conference paper
Language: English
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Document National Code:
ICCE10_0490
Index date: 10 July 2015
A New Hexahedral Element with Embedded Interface for Crack Analysis in Delaminated Composite Beams abstract
Existence of a crack in structures would lead to a sudden failure and damage. Establishing a precise analytical model for the cracked element would be a powerful tool to achieve the right answers in the analysis of the structure. The main aim of this paper is to formulate a hexahedral element with embedded interface for using in the analysis of delaminated composite beams. In this investigation, the kinematics of the discontinuous displacement field along with the virtual work principle, for a body with an internal discontinuity, is utilized. Based on the suggested interpolation functions for the discrete segments, and also the element displacement field, the element stiffness matrix is calculated. The proposed element can be used for modeling of the discrete cracks in three-dimensional problems, such as a laminated composite beam. Numerical example is analyzed for the accuracy test. The results indicated that utilizing sufficient elements yields suitable answers.
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A New Hexahedral Element with Embedded Interface for Crack Analysis in Delaminated Composite Beams authors
Fariba Hassanzadeh Tavakoli
Assistant Professor, Department of Civil Engineering, Bojnord Branch, Islamic Azad University,Bojnord, Iran
Mohammad Rezaiee-Pajand
Professor, Department of Civil Engineering, Ferdowsi University of Mashhad, Iran