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Performance of a Hermitian element for a beam with rotational constraints

 

作者: K. Wisniewski,   E. Turska,   B. A. Schrefler,  

 

期刊: Communications in Numerical Methods in Engineering  (WILEY Available online 1993)
卷期: Volume 9, issue 1  

页码: 27-34

 

ISSN:1069-8299

 

年代: 1993

 

DOI:10.1002/cnm.1640090107

 

出版商: John Wiley&Sons, Ltd

 

数据来源: WILEY

 

摘要:

AbstractThe behaviour of a Hermitian two‐node element based on the Bernoulli beam equation is examined. The assumed constraints generate rotation‐dependent distributed moments. It is shown that for these moments a potential exists, and that a rigid translation is the only rigid body mode of the element. The analysis of the Bernoulli equation demonstrates that very large values of α=e/EIenforce the conditionw,x= 0, resulting in displacements equal to zero. The element is examined for two types of constraints. The first type of constraint, diminishing rotations of a beam (α0), a highly oscillatory nature of the solution i

 

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