In this work, an alternative simplified procedure to numerically reproduce the diagonal compression and shear compression tests on a rubble stone masonry is proposed within the finite element method. Concurrently, there is the need to reproduce the seismic behaviour of these structures by numerical approaches, also in consideration of the high cost of experimental tests. In the recent years, some researchers have performed experimental tests to improve the knowledge of the behaviour of stone masonry. Since stone masonry is brittle, it is also very vulnerable and in the case of earthquakes damage, collapses and causalities are very likely to occur, as it has been seen during the last Italian earthquake in Amatrice in 2016. Stone masonry is one of the oldest construction types due to the natural and free availability of stones and the relatively easy construction. The results obtained with the Open Source code are compared with those obtained with a commercial one, and the comparison shows the ability and the effectiveness of the Open Source code (if the parameters needed to calibrate the non-linear constitutive law are correctly identified) to reproduce the non-linear structural behavior of the analyzed case studies. After a short description of both the adopted code and the em-ployed non-linear constitutive law, two case studies are analyzed. The paper shows the effectiveness of Open Source Finite Element Software through the discussion of the numerical modeling of masonry structures. I confronti mostrano come il codice Open Source, con un modello di danno i cui parametri siano opportunamente tarati su risultati di indagini sperimentali, sia adeguatamente capace di riprodurre il comportamento dei casi studio.ĪBSTRACT. I risultati ottenuti con il codice di calcolo Open Source sono confrontati con quelli ottenuti mediante modellazioni ad elementi finiti realizzate impiegando un codice di calcolo commerciale. Dopo una breve descrizione dei codici adottati, e della legge non lineare di danno impiegata per la modellazione della risposta non lineare della muratura, vengono riportati e discussi due casi studio. La memoria mostra l'impiego di codici Open Source, operanti in ambiente Linux, basati sulla tecnica degli elementi finiti affrontando nello specifico la modellazione di apparecchi murari.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
February 2023
Categories |