Scipediacontent: Scipediacontent moved page Draft Content 648916789 to P. Kalkbrenner 2021a

2021-11-30T11:49:36Z

Scipediacontent moved page Draft Content 648916789 to P. Kalkbrenner 2021a

Scipediacontent: Created page with "== Abstract == Cutting-edge methods in the computational analysis of structures have been developed over the last decades. Such modern tools are helpful to assess..."

2021-11-30T11:49:33Z

Created page with "== Abstract == Cutting-edge methods in the computational analysis of structures have been developed over the last decades. Such modern tools are helpful to assess..."

New page

== Abstract ==

Cutting-edge methods in the computational analysis of structures have been
developed over the last decades. Such modern tools are helpful to assess the safety of existing
buildings. Multi-scale techniques have been proposed to combine the accuracy of micro-
modelling and the computational efficiency of macro-modelling. Machine-learning tools have
been utilized successfully to train specific models by feeding big source data from different fields, e.g. autonomous driving, face recognition, etc. This research proposes a continuous nonlinear material law that can reproduce data from micro-scale analysis. The proposed method is based on a machine-learning tool that links the two scales of the analysis by training a macro-model smeared damage constitutive law through benchmark data from numerical tests derived from micro-models.

== Full document ==
<pdf>Media:Draft_Content_648916789p1016.pdf</pdf>
== References ==

[1] Oliveira, D.V. and Lourenço, P.B. Implementation and Validation of a constitutive model for the cyclic behaviour of interface elements, Computers and Structures, vol.28 (2004), pp.1451-1461

[2] Drougkas, A., Roca, P. and Molins, C. Analytical micro-modellingof masonry periodic unit cells – Elastic properties,International Journal of Solids and Structures,vol.69-70 (2015), pp.169-188

[3] Petracca, M., Pelà, L., Rossi, R., Zaghi, S., Camata, G. and Spacone, E. Micro-scale Continuos and Discrete Numerical Models for Nonlinear Analysis of Masonry Shear Walls, Construction and Building Materials, vol. 149 (2017), pp. 296-314

[4] Saloustros, S., Pelà, L., Roca, P. and Portal, J. Numerical analysis of Structural Damage in the Church of the Poblet Monastery, Engineering Failure Analysis, vol. 48 (2015), pp.41-61

[5] Lotfi, H. and Shing, P. An Appraisal of Smeared Crack Models for Masonry Shear Wall Analysis, Computers & Structures, vol. 41 (1991), pp.413-425

[6] Pelà, L., Cervera, M. and Roca, P An orthotropic damage model for the analysis of masonry structures, Construction and Building Materials, vol. 41 (2013), pp.957-967

[12]

[7] Kalkbrenner, P., Pelà, L. and Sandoval, C. Multi Directional Pushover Analysis of Irregular Masonry Buildings without Box Behaviour, Engineering Structures, vol. 201 (2019)

[8] Petracca, M., Pelà, L., Rossi, R., Oller, S., Camata, G. and Spacone, E. Regularization of first order computational homogenization for multi-scale analysis of masonry structures, Computational Mechanics, vol.57 (2016), no.2, pp.257-276

[9] Petracca, M., Pelà, L., Rossi, R., Oller, S., Camata, G. and Spacone, E. Multiscale computational first order homogenization of thick shells for the analysis of out-of-plane loaded masonry walls, Computer Methods in Applied Mechanics and Engineering, vol. 315 (2017), pp.273-301

[10] Logarzo H.J., Capuano G., Rimoli J.J., Smart constitutive laws: Inelastic homogenization through machine-learning, Computer methods in applied mechanics and engineering, vol. 373 (2021)

[11] Zaghi, S., Martinez, M., Rossi, R. and Petracca, M. Adaptive and Off-line Techniques for Non-linear Multiscale Analysis, Composite Structures, vol. 206 (2018), pp.215-233

[12] Woody Ju, J.W., Chaboche, J.L. and Voyiadjis, G.Z. Damage Mechanics in Engineering Materials. Elsevier Science Ltd., 1998.

[13] Cervera, M., Oliver, J. and Faria, R. Seismic Evaluation of concrete dams via continuum damage models. International Journal of Solids and Structures, vol.24 (1995), no.9, pp. 1225-1245.

[14] Faria, R., Oliver, J. and Cervera, M. A strain-based plastic viscous- damage model for massive conscrete structures, International Journal of Solids and Structures, vol.43(1998), no.14, pp.1533-1558.

[15] Wu, J.Y., Li, J. and Faria, R. An energy release rate-based plastic damage model for concrete, International Journal of Solids and Structures, vol.43(2006), no.3-4, pp.583-612

[16] Faria, R., Oliver, J. and Cervera, M. An Isotropic Scalar Damage Models for the Numerical Analysis of Concrete Structures, CIMNE Monograph, vol December (2000), no.198

[17] Lubliner, J., Oliver, J., Oller, S. and Oñate, E. A plastic damage model for concrete, International Journal of Solids and Structures, vol.25 (1989), no.3, pp.299-326

[18] Ruder, S. An overview of gradient descent optimization algorithms, arXiv preprint arXiv:1609.04747 (2016)

[19] Kingma, D.P. and Lei Ba, J. Adam: A Method For Stochastic Optimization, paper submitted to: International Conference on Learning Representations (2015)

[20] https://www.tensorflow.org/

[21] Dadvand, P., Rossi, R. and Oñate, E. An Object-oriented Environment for Developing Finite Element Codes for Multi-disciplinary Applications, Archives of Computational Methods in Engineering, vol.17 (2010), no.2, pp.253-297

[22] Norris A., The isotropic material closest to a given anisotropic material, Journal of Mechanics of Materials and Structures 1 (2005)

[23] Rossi R., Zorilla R., Codina R., A stabilised displacemen-volumetric strain formulation for nearly incompressible and anisotropic materials, CMAME, 2020

[24] Melendo A., Coll A., Pasenau M., Escolano E., Monros A., www.gidhome.com, (2016).

← Older revision	Revision as of 11:49, 30 November 2021
(No difference)

P. Kalkbrenner 2021a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 648916789 to P. Kalkbrenner 2021a

Scipediacontent: Created page with "== Abstract == Cutting-edge methods in the computational analysis of structures have been developed over the last decades. Such modern tools are helpful to assess..."