Powered by OpenAIRE graph
Found an issue? Give us feedback
addClaim

ANCF Tetrahedral Solid Element Using Shape Functions Based on Cartesian Coordinates

Authors: Abdel-Nasser A. Mohamed;

ANCF Tetrahedral Solid Element Using Shape Functions Based on Cartesian Coordinates

Abstract

This paper introduces a new solid, four-node, fully parameterized, tetrahedron element. The tetrahedron element is based on the absolute nodal coordinate formulations in which the absolute position vector and three slope vectors are considered nodal coordinates. The linear transformation of the shape functions from the tetrahedron coordinates to Cartesian coordinates leads to very stiff elements. On the other hand, the nonlinear transformation from tetrahedron coordinates to Cartesian coordinates is very complicated. Therefore, the use of the barycentric coordinates was bypassed and the Cartesian coordinates were used to define the cubic polynomial shape functions. The volumetric integration of the mass matrix, elastic force and gravity force was performed using the trapezoidal rule. It is easily shown that the resulting element satisfies the conformity conditions. The numerical results show that the proposed element does not suffer from Poisson locking. Furthermore, the numerical results show that comparing to fully parametrized brick elements, the proposed element experiences poor convergency and excessive computational time.

Related Organizations
  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    4
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Average
Average
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!