ANALYSIS OF IN-LAYER STRAINS IN THE LOW ORDER MITC SHELL ELEMENT

Authors

  • VICTORIA VAMPA

Keywords:

Abstract

IN RECENT PUBLICATIONS IT WAS SHOWN THAT THE DEVELOPMENT OF GENERAL SHELL ELEMENTS USING THE METHOD OF MIXED INTERPOLATION OF TENSORIAL COMPONENTS (MITC) IS EFFECTIVE FOR GENERAL ENGINEERING APPLICATIONS. IN PARTICULAR, THE MITC4 IS A LOW ORDER FORMULATION THAT HAS BEEN EMPLOYED VERY SUCCESSFULLY TO APPROXIMATE ALL DEFORMATION STATES OF A SHELL. IN THIS ELEMENT, FORMULATED IN A CONVECTED COORDINATE SYSTEM, SEPARATE INTERPOLATIONS FOR THE SHEAR TERMS ARE PERFORMED EFFECTIVELY. HOWEVER, IN THE BENDING-DOMINATED CASE, THE IMPROVEMENT OF THE MITC4 FORMULATION WITH RESPECT TO THE PERFORMANCE OF THE STANDARD BILINEAR ELEMENT IS MORE IMPORTANT. IN THIS PAPER A NEW SHELL ELEMENT IS PRESENTED WHERE IN-PLANE STRAINS INTERPOLATION IS BASED ON A QUADRILATERAL 2-D ELEMENT, THE QMITC. NUMERICAL RESULTS FOR SOME TEST EXAMPLES ARE PRESENTED AND COMPARED.

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Published

2007-06-01

Issue

Vol. 4 No. 2 (2007)

Section

Articles

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