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JTCAM
[Journal of Theoretical, Computational and Applied Mechanics]
JTCAM
Journal of Theoretical, Computational and Applied Mechanics
Creada en 2021, Journal of Theoretical, Computational and Applied Mechanics (JTCAM) incorpora trabajos de investigación en inglés en el campo de la mecánica de sólidos y la mecánica de materiales y estructuras. La revista publica regularmente contribuciones de investigación teórica, numérica, aplicada y experimental.
- Director de publicación: Bruno Sportisse
- Consejo de redacción: Harsha S. Bhat, Laurence Brassart, Stéphanie Chaillat-Loseille, Lori Graham-Brady, Shaocheng Ji, Phu Nguyen, Anna Pandolfi, Alexander Popp, Julien Réthoré, Olivier Thomas, Laszlo S. Toth
- Tipo de soporte: electrónico
- Periodicidad: sobre la marcha
- Año de creación: 2021
- Fecha de publicación en Episciences: 2021
- eISSN: 2726-6141
- Disciplinas: mecánica teórica, computacional y aplicada, mecánica de sólidos, mecánica de materiales y estructuras
- Idiomas de publicación: inglés
- Procedimiento de evaluación: evaluación abierta o simple ciega
- CC BY 4.0 licence
- Editor: Inria
- Dirección postal: Domaine de Voluceau Rocquencourt, BP 105, 78153 Le Chesnay Cedex
- País: Francia
- Contacto: jtcam AT episciences.org
Últimos artículos
Multi-material topology optimization of structural load-bearing capacity using limit analysis
We extend the problem of finding an optimal structure with maximum load-bearing capacity to the case of multiple materials. We first consider a reinforcement optimization case where the structure consists of a fixed background matrix material with given strength properties and optimize the reinforcement topology within this material. We discuss the use of various isotropic and anisotropic strength criteria to model the reinforcing phase, including reinforcements with discrete orientations. In a second time, we investigate a bi-material formulation where we optimize the topology of two material phases simultaneously. Various choices for the material strength conditions are proposed and we apply this formulation to the optimization of pure tensile and compressive phases of a single material. In all cases, two optimization variants are proposed using concepts of convex optimization and limit analysis theory, namely maximizing the load-bearing capacity under a fixed volume constraint or minimizing the volume under a fixed loading. Both problems are convex and a penalization procedure is proposed. The underlying problems can be solved using conic programming solvers. Illustrative applications demonstrate the versatility of the proposed formulation, including the influence of the selected strength criteria, the possibility to obtain structures with members of fixed orientation or structures with different importance granted to tensile and compressive regions. Finally, we also draw a parallel with the generation of strut-and-tie models for the analysis of reinforced concrete structures.
Mourad, Leyla
February 06, 2025
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The Redundancy Matrix as a Performance Indicator for Structural Assessment
The degree of static indeterminacy and its spatial distribution characterize load-bearing structures independent of a specific load case. The redundancy matrix stores the distribution of the static indeterminacy on its main diagonal, and thereby offers the possibility to use this property for the assessment of structures. It is especially suitable to be used in early planning stages for design exploration. In this paper, performance indicators with respect to robustness and assemblability are derived from the redundancy matrix. For each of the performance indicators, a detailed matrix-based derivation is given and the application is showcased with various truss examples.
Forster, David
February 05, 2025
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