Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                          Istanbul...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                           Istanbu...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                               Ist...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                                  ...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                         Istanbul,...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                               Ist...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                               Ist...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin                              Ista...
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Istanbul 2011

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Istanbul 2011

  1. 1. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The NOSA-ITACA code for the modelling of thestructural behaviour of historic masonry constructions Laboratory of Mechanics of Materials and Structures Vincenzo Binante Maria Girardi Cristina Padovani Andrea Pagni Giuseppe Pasquinelli Institute of Information Sciences and Technologies “A. Faedo”, CNR, Pisa 1
  2. 2. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The NOSA-ITACA project 2011-2013 funded by the Region of Tuscany (PAR-FAS 2007-2013) DCR-University ISTI-CNR Pisa of Florence Consulting Basic Research NOSA -ITACA Case study Service CODEThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  3. 3. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The NOSA-ITACA projectNOSA CODE: f.e.m. nonlinear solver SALOME: pre-post processor Case study: “Voltone”, Livorno NOSA-ITACA code CONSULTING SERVICE Municipalities Monuments and Fine Arts Offices 3 Professional offices
  4. 4. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The NOSA Code (http://www.isti.cnr.it/research/unit.php?unit=MMS) •The NOSA code is a freeware finite element solver for nonlinear analyses. •Masonry is modelled as a nonlinear isotropic elastic material with zero tensile strength and bounded compressive strength (masonry-like or no- tension material). [G. Del Piero, Meccanica 1989; S. Di Pasquale, Meccanica 1992; M. Lucchesi, C. Padovani et al., Masonry Constructions: Mechanical Models and Numerical Applications, Springer 2008]. • Static analyses • Stress fields • Collapse loads • Dynamic analyses • Elastic, fracture and crushing strain fields • Thermo-mechanical analyses • Displacement fields • Temperature fields • Time- histories • NOSA library: beam, shell, plane stress, plane strain, solid and heat transfer elements (17 elements) 44The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  5. 5. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The masonry-like constitutive equation E the infinitesimal strain tensor, s T the Cauchy stress tensor, Ee the elastic part of the strain, Ef the fracture strain, e Ec the crushing strain, E,  the modulus of elasticity and the Poisson’s ratio,  0  0 the masonry maximum compressive stress. s0 Given E, find Ef, Ec, T such that E = Ee+ E f + Ec , E f  E c = 0, E  e   T  E  tr( E e )I  , ˆ ˆ T  T( E ), DET( E ) 1+ν   1 - 2  T  E f  T   0 I   E c  0, T , E c  0, T -  0 I  0, E  0 f 55The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  6. 6. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 Some example applications • 1995 Battistero del Duomo, Volterra • 1996 Arsenale Mediceo, Pisa Static Analyses • 1998 Teatro Goldoni, Livorno • 1998 Chiesa Madre di S. Nicolò, Noto • 2004 Chiesa di Santa Maria Maddalena, Morano Calabro • 2005 Chiesa di San Ponziano, Lucca Dynamic Analyses • 2008 Chiesa Abbaziale di Santa Maria della Roccella, Roccella Ionica • 2008 Torre “Rognosa” , San Gimignano • 2010 Torre “delle Ore”, LuccaThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  7. 7. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 NOSA-ITACA SOFTWARE Until now, the NOSA solver was not supported by an efficient pre and post-processor; for this reason, the use of NOSA is limited to its developers. One of the main aims of the NOSA-ITACA project is to develop an integrated platform, CAD/CAE software + NOSA fem code, in order to obtain a powerful tool for the safeguard of architectural heritage, available for all and flexible to upgrading. As pre and post-processor, the SALOME platform is employed (http://www.salome-platform.org/), which is an open-source software developed by CEA ( Commissariat à l’énergie atomique et aux énergies alternatives ) and EDF industry with the support of EURIWARE/Open Cascade.The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  8. 8. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 NOSA-ITACA SOFTWARE: the Salome software as pre and post-processors The Salome platform is based on an open and flexible architecture made of reusable components; it can be used as: • standalone application for generation of CAD models, their preparation for numerical calculations and post-processing of the calculation results; • alternatively, as in the NOSA-ITACA project, it can be used as a platform for integration of the external third-party fem code. The Salome architecture was, mainly, developed in C/C++ and Python languages, which are object-oriented programming languages.The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  9. 9. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 NOSA-ITACA SOFTWARE: the integration of the NOSA code Flow-chart of integration stages NOSA-SALOME NOSA code Access outside Access fromCORBA/SALOME CORBA/SALOME Internal object Python CORBA interface interface SALOME integrationThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  10. 10. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 NOSA-ITACA SOFTWARE: the integration of the NOSA code What can be done with the first stage of integration Python interface Transfer numerical results to Salome Post-Pro component Assign to mesh items physical SALOME platform NOSA code properties Import/Export mesh data, node and element sets Python interpreterThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  11. 11. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 NOSA-ITACA SOFTWARE: the integration of the NOSA code The Salome architecture is modular, made of several components; among them, there are: • Geometry module; • Mesh module; • Post-Pro module. Each Salome module is characterized by a set of methods and attributes and specific operations can be done. Data exchange from a Salome component to another one are done through CORBA interfaces, which each module is supplied with. The set of a Salome component and its CORBA interfaces represents a CORBA component. Each communication between a Salome module and others occurs in a CORBA server-CORBA clients way, where the CORBA server sends/receives from CORBA clients the necessary information.The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  12. 12. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 NOSA-ITACA SOFTWARE: the integration of the NOSA code According to this approach, the integration of the Nosa code in the Salome architecture must be done in the following way:CORBA server ≡ Nosa module CORBA client ≡ Mesh or Post-Pro module CORBA bus Corba component Corba component CORBA CORBA interface server interface client Internal object Client objectThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  13. 13. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 NOSA-ITACA SOFTWARE: the integration of the NOSA code At the end of the integration process, the NOSA-ITACA software will be made of an additional module: • Geometry module; • Mesh module; • Nosa module; • Post-Pro module. According to this integration scheme, it is possible to control locally or remotely the numerical code, from monitoring of solution progress to visualization of numerical results.The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  14. 14. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 NOSA-ITACA SOFTWARE: some examples Analysis of a vault made of masonry-like material subjected to its own weightThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  15. 15. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 NOSA-ITACA SOFTWARE: some examples Launch of NOSA solverThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  16. 16. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  17. 17. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  18. 18. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The “Rognosa” tower in San Gimignano SEZ. A-A +43,34 (Top) t SEZ. A-A y t A x t Side overlooking the Cathedral Square z x +19,04 (Surrounding roofs level) y t A x Side overlooking +8,60 (Masonry vaults level) the Cathedral Square z A A +0,00 (Square level) xThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  19. 19. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011The “Rognosa” tower in San Gimignano: digital acquisition of the geometry (VC Lab – ISTI CNR) Merging resolution=1 cm
  20. 20. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The “Rognosa” tower in San Gimignano: - Static analysis The Tower is subjected to its own weight and to the weight of the surrounding buildings - Dynamic analysis The Tower subjected to the Nocera Umbra earthquake in x - directionThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  21. 21. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 +43,34 (Top) The “Rognosa” tower in San Gimignano: dynamic analysis Tower SEZ. A-A base section t +19,04 (Surrounding roofs level) y t A x Side overlooking +8,60 (Masonry vaults level) the Cathedral Square z A A +0,00 (Square level) xThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  22. 22. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The “Rognosa” tower in San Gimignano: dynamic analysis +43,34 (Top) +19,04 (Surrounding roofs level) +8,60 (Masonry vaults level)z A A +0,00 (Square level) xThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  23. 23. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The “Rognosa” tower in San Gimignano: dynamic analysis Tower vertical section The bell chamber +43,34 (Top) +19,04 (Surrounding roofs level) +8,60 (Masonry vaults level)z A A +0,00 (Square level) xThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  24. 24. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The “Rognosa” tower in San Gimignano: dynamic analysis Compressive stress Tzz At time t=3,41 s: Minimum values reached during the analysis :The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  25. 25. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The “Rognosa” tower in San Gimignano: dynamic analysis Crushing strain Eczz At time t=3,41 s: Minimum values reached during the analysis :The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  26. 26. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The “Rognosa” tower in San Gimignano: dynamic analysis Tangential fracture strain Eftt At time t=3,41 s: Maximum values reached during the analysis :The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  27. 27. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The “Rognosa” tower in San Gimignano: dynamic analysis Fracture strain Efzz At time t=3,41 s: Maximum values reached during the analysis :The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  28. 28. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 Displacements ux Maximum values reached during the analysis:The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  29. 29. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 The “Rognosa” tower in San Gimignano: dynamic analysisThe NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
  30. 30. Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin Istanbul, 22nd-25th November 2011 Conclusions •The NOSA code is a finite element code for static and dynamic nonlinear analyses of masonry structures. The version for static analyses (COMES- NOSA) is freely downloadable at http://www.isti.cnr.it/research/unit.php?unit=MMS. •Masonry is modelled by means of a masonry-like constitutive equation with zero tensile strength and finite or infinite compressive strength. •The NOSA-ITACA project aims to enhance the NOSA code and disseminate the use of numerical tools in the field of maintenance and restoration of the architectural heritage. •A case study has been presented in which the seismic vulnerability of the Rognosa Tower in San Gimignano has been assessed by means of a dynamic numerical analysis conducted via NOSA-ITACA code.The NOSA-ITACA code for the modelling of the structural behaviour of historic masonry constructions
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