NOSA-ITACA
NOSA-ITACA is a free software package for the nonlinear structural analysis of historical masonry constructions. It is developed and maintained by the Mechanics of Materials and Structures Laboratory (MMS Lab) of the Institute of Information Science and Technologie "A. Faedo" of the National Research Council (ISTI-CNR).
History
The original NOSA (NOnlinear Structural Analysis) finite element code was developed in the 1980s at CNR for solving problems in solid mechanics and structural engineering. In the following decades it was extended to masonry structures and integrated with the open-source SALOME platform for pre- and post-processing, resulting in the NOSA-ITACA package, freely distributed by ISTI-CNR.
Features
| Developer(s) | ISTI-CNR |
|---|---|
| Written in | Fortran/Python |
| Engine | |
| Operating system | Linux |
| Available in | English |
| Type | Finite element method |
| License | http://www.nosaitaca.it/download/MMSLab_Freeware_Licence_Agreement.pdf |
| Website | http://www.nosaitaca.it/software/ |
Search NOSA-ITACA on Amazon.NOSA-ITACA[1] is based on a constitutive equation in which masonry is modeled as a nonlinear elastic material with negligible tensile strength and either finite or infinite compressive strength.[2]
The software supports:
- linear and nonlinear static analyses[3], including collapse analysis;
- thermomechanical analyses under thermal loads[4];
- modal analysis[5]
- modelling of structural strengthening and reinforcement interventions.[1]
The finite element library includes beam, plane stress, plane strain, axisymmetric, brick and shell elements. NOSA-ITACA, written in Fortran, is integrated with the SALOME platform for mesh generation, model setup and results visualization, and it is distributed for GNU/Linux systems.
“Several studies have developed nonlinear finite element (FE) models to analyze the structural behavior of existing domes in static and seismic conditions throughout their service life. Effective tools based on FEM, such as the NOSA-ITACA code, are available for this purpose.”[6]
“The constitutive model, together with the numerical techniques for solving equilibrium problems of masonry constructions, was implemented in the code NOSA and successfully applied to time-history analysis of masonry towers, beams and domes.”[7]
Comparisons with other finite element programs are available in literature[5][8][9][10]
Applications
NOSA-ITACA has been applied in research and conservation projects involving historic towers, churches and monuments in Italy and abroad. Examples include:
- the Church of San Francesco[1], the San Frediano bell tower[11] and the Clock Tower[11] in Lucca,
- the Voltone[3], and the Old Fortress[12] in Livorno,
- the Mogadouro tower[13] in Portugal.
See also
References
- ↑ 1.0 1.1 1.2 Girardi, Maria; Padovani, Cristina; Pellegrini, Daniele; Porcelli, Margherita; Robol, Leonardo (2023). "Numerical Modelling of Historical Masonry Structures with the Finite Element Code NOSA-ITACA". In Bretti, Gabriella; Cavaterra, Cecilia; Solci, Margherita; Spagnuolo, Michela. Mathematical Modeling in Cultural Heritage. Springer INdAM Series. 55. Singapore: Springer Nature. pp. 133–152. doi:10.1007/978-981-99-3679-3_9. ISBN 978-981-99-3679-3. Search this book on
- ↑ Lucchesi, Massimiliano; Zani, Nicola; Padovani, Cristina; Pasquinelli, Giuseppe (2008). "Masonry Constructions: Mechanical Models and Numerical Applications". Lecture Notes in Applied and Computational Mechanics. 39. doi:10.1007/978-3-540-79111-9. ISBN 978-3-540-79110-2. ISSN 1613-7736.
- ↑ 3.0 3.1 Girardi, M.; Padovani, C.; Pellegrini, D. (2015-11-01). "The NOSA-ITACA code for the safety assessment of ancient constructions: A case study in Livorno". Advances in Engineering Software. Civil-Comp. 89: 64–76. doi:10.1016/j.advengsoft.2015.04.002. ISSN 0965-9978.
- ↑ Pellegrini, Daniele (2024-07-01). "Thermo-mechanical analyses of masonry structures in fire conditions". Finite Elements in Analysis and Design. 234. doi:10.1016/j.finel.2024.104128. ISSN 0168-874X. Unknown parameter
|article-number=ignored (help) - ↑ 5.0 5.1 Porcelli, Margherita; Binante, Vincenzo; Girardi, Maria; Padovani, Cristina; Pasquinelli, Giuseppe (2015-06-01). "A solution procedure for constrained eigenvalue problems and its application within the structural finite-element code NOSA-ITACA". Calcolo. 52 (2): 167–186. doi:10.1007/s10092-014-0112-1. ISSN 1126-5434.
- ↑ Nerilli, Francesca; Roscini, Francesca; Sacco, Elio (2025-10-01). "No-tension axial-symmetric masonry domes: novel curved Lagrangian and NURBS based finite elements". Computers & Structures. 317. doi:10.1016/j.compstruc.2025.107914. ISSN 0045-7949. Unknown parameter
|article-number=ignored (help) - ↑ Facchini, Luca; Betti, Michele (2017-10-01). "Time-history analysis of slender masonry towers: a parametric study on the reliability of a simplified Bouc and Wen approach". Meccanica. 52 (13): 3181–3196. doi:10.1007/s11012-017-0671-8. ISSN 1572-9648.
- ↑ Girardi, M., Padovani, C., Pellegrini, D., & Robol, L. "NOSA-ITACA: a free FE program for historic masonry buildings" (PDF). Prooceding of the 2nd International Conference on Recent Advances in Nonlinear Models – Design and Rehabilitation of Structures: 43-52.CS1 maint: Multiple names: authors list (link)
- ↑ Bartoli, Gianni; Betti, Michele; Biagini, Paolo; Borghini, Andrea; Ciavattone, Alberto; Girardi, Maria; Lancioni, Giovanni; Marra, Antonino Maria; Ortolani, Barbara; Pintucchi, Barbara; Salvatori, Luca (2017-10-01). "Epistemic Uncertainties in Structural Modeling: A Blind Benchmark for Seismic Assessment of Slender Masonry Towers". Journal of Performance of Constructed Facilities. 31 (5): 04017067. doi:10.1061/(ASCE)CF.1943-5509.0001049. ISSN 1943-5509.
- ↑ Calderini, C.; Bianchini, N.; Lourenço, P.B.; Mendes, N.; Candeias, P.X.; AlShawa, O.; Chácara, C.; Chávez, M. M.; de Felice, G.; Ferrante, A.; Fici, P.; Gagliardo, R.; Kesavan, P.; Lignola, G.P.; Malena, M. (2024-12-01). "Shake-Table Testing of a Brick Masonry Groin Vault: Overview of Blind Predictions and Postdictions and Comparison with Experimental Results". International Journal of Architectural Heritage. 18 (12): 1825–1851. doi:10.1080/15583058.2024.2419545. ISSN 1558-3058.
- ↑ 11.0 11.1 Azzara, Riccardo Mario; Girardi, Maria; Iafolla, Valerio; Padovani, Cristina; Pellegrini, Daniele (2020-02-07). "Long-Term Dynamic Monitoring of Medieval Masonry Towers". Frontiers in Built Environment. 6. doi:10.3389/fbuil.2020.00009. ISSN 2297-3362. Unknown parameter
|article-number=ignored (help) - ↑ Girardi, Maria; Padovani, Cristina; Pellegrini, Daniele; Robol, Leonardo (2021-05-01). "A finite element model updating method based on global optimization". Mechanical Systems and Signal Processing. 152. arXiv:2007.00278. Bibcode:2021MSSP..15207372G. doi:10.1016/j.ymssp.2020.107372. ISSN 0888-3270. Unknown parameter
|article-number=ignored (help) - ↑ Pellegrini, Daniele; Girardi, Maria; Lourenço, Paulo B.; Masciotta, Maria Giovanna; Mendes, Nuno; Padovani, Cristina; Ramos, Luis F. (2018-11-20). "Modal analysis of historical masonry structures: Linear perturbation and software benchmarking". Construction and Building Materials. 189: 1232–1250. doi:10.1016/j.conbuildmat.2018.09.034. ISSN 0950-0618.
External links
- Official NOSA-ITACA web site
- User Manual
- ISTI-CNR -Software
- CNR Focus – The NOSA-ITACA code for the structural analysis of masonry constructions of historical interest
- SALOME platform
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