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Implementation of Field- and Edge- Consistent QUAD4 element in FINEART Mathematical Modelling and Computer Simulation Sub Task 1 – Computational Mechanics

IR@C-MMACS: CSIR-Centre for Mathematical Modelling and Computer Simulation, Bangalore

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Title Implementation of Field- and Edge- Consistent QUAD4 element in FINEART Mathematical Modelling and Computer Simulation Sub Task 1 – Computational Mechanics
 
Creator G, Prathap
P, Jafar Ali
V, Senthilkumar
 
Subject Finite Element Analysis
 
Description This report presents the use of two conceptual principles, the field-consistency requirement and the edge-consistency requirement, as the basis for deriving a 4-noded quadrilateral plate bending element based on Mindlin plate theory using Jacobian transformations only. The derivation is now free of the use of such devices as strain-interpolation points and Hrennikoff strain reference lines, etc., which have been the basis for many recent formulations of this element. The shear strain constraints are now consistently defined within the element domain, and 'tangential' shear strains are consistently matched at element boundaries so that there is no locking even under extreme distortion-for example, even when two nodes are collapsed so that the quadrilateral becomes a triangle. Numerical experiments show that this synthesis produces an element that should be identical to other recent formulations of this element based on tensorial transformations or on shear constraint condensation on the edges, but now given a more complete and formal logical basis. This report discusses about the implementation of this field- and edge- consistent 4-noded quadrilateral plate bending element in FINEART program. Details of the numerical examples solved to validate the implementation of this element have also been presented.
 
Publisher SERC, Chennai
 
Date 2004-09
 
Type Monograph
NonPeerReviewed
 
Format application/pdf
 
Identifier http://cir.cmmacs.ernet.in/230/1/CMM20%2DST1%2DSERC%2D01%2D04.pdf
G, Prathap and P, Jafar Ali and V, Senthilkumar (2004) Implementation of Field- and Edge- Consistent QUAD4 element in FINEART Mathematical Modelling and Computer Simulation Sub Task 1 – Computational Mechanics. Project Report. SERC, Chennai, SERC, Chennai. (Unpublished)
 
Relation http://cir.cmmacs.ernet.in/230/