Mechanical models in computational form finding of bending-active structures
Fecha
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Handle
https://riunet.upv.es/handle/10251/123546
Cita bibliográfica
Lazaro, C.; Bessini-Muñoz, JG.; Monleón Cremades, S. (2018). Mechanical models in computational form finding of bending-active structures. International Journal of Space Structures. 33(2):86-97. https://doi.org/10.1177/0266351118794277
Titulación
Resumen
[EN] This article reviews the different aspects involved in computational form finding of bending-active structures based on the dynamic relaxation technique. Dynamic relaxation has been applied to form-finding problems of bending-active structures in a number of references. Due to the complex nature of large spatial deformations of flexible beams, the implementation of suitable mechanical beam models in the dynamic relaxation algorithm is a non-trivial task. Type of discretization and underlying beam theory have been identified as key aspects for numerical implementations. References can be classified into two groups depending on the selected discretization: finite-difference-like and finite-element-like. The first group includes 3- and 4-degree-of-freedom implementations based on increasingly complex beam models. The second gathers 6-degree-of-freedom discretizations based on co-rotational three-dimensional Kirchhoff¿Love beam elements and geometrically exact Reissner¿Simo beam elements. After reviewing and comparing implementation details, the advantages and drawbacks of each group have been discussed, and open aspects for future work have been pointed out.
Palabras clave
Bending-active structures, Computational form finding, Dynamic relaxation, Euler Bernoulli beam theorem, Finite-difference-like discretization, Finite-element-like discretization, Geometrically exact beam model, Kirchhoff Love beam theory
ISSN
0266-3511
ISBN
Fuente
International Journal of Space Structures
DOI
10.1177/0266351118794277
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The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The financial support from the Spanish Ministry of Economy and Competitiveness through grant BIA2015-69330-P (MINECO) is gratefully acknowledged.