TY - JOUR
T1 - A regularized non-smooth contact dynamics approach for architectural masonry structures
AU - Beatini, Valentina
AU - Royer-Carfagni, Gianni
AU - Tasora, Alessandro
PY - 2017/7/15
Y1 - 2017/7/15
N2 - A Non-Smooth Contact Dynamic (NSCD) formulation is used to analyze complex assemblies of rigid blocks, representative of real masonry structures. A model of associative friction sliding is proposed, expressed through a Differential Variational Inequality (DVI) formulation, relying upon the theory of Measure Differential Inclusion (MDI). A regularization is used in order to select a unique solution and to avoid problems of indeterminacy in redundant contacts. This approach, complemented with an optimized collision detection algorithm for convex contacts, results to be reliable for dynamic analyses of masonry structures under static and dynamic loads. The approach is comprehensive, since we implement a custom NSCD simulator based on the Project Chrono C++ framework, and we design custom tools for pre- and post-processing through a user-friendly parametric design software. Representative examples confirm that the method can handle 3-D complex structures, as typically are architectural masonry constructions, under both static and dynamic loading.
AB - A Non-Smooth Contact Dynamic (NSCD) formulation is used to analyze complex assemblies of rigid blocks, representative of real masonry structures. A model of associative friction sliding is proposed, expressed through a Differential Variational Inequality (DVI) formulation, relying upon the theory of Measure Differential Inclusion (MDI). A regularization is used in order to select a unique solution and to avoid problems of indeterminacy in redundant contacts. This approach, complemented with an optimized collision detection algorithm for convex contacts, results to be reliable for dynamic analyses of masonry structures under static and dynamic loads. The approach is comprehensive, since we implement a custom NSCD simulator based on the Project Chrono C++ framework, and we design custom tools for pre- and post-processing through a user-friendly parametric design software. Representative examples confirm that the method can handle 3-D complex structures, as typically are architectural masonry constructions, under both static and dynamic loading.
KW - Associative friction
KW - Dynamic analysis
KW - Masonry
KW - Measure Differential Inclusion (MDI)
KW - Non-Smooth Contact Dynamic (NSCD)
KW - Rigid blocks
U2 - 10.1016/j.compstruc.2017.02.002
DO - 10.1016/j.compstruc.2017.02.002
M3 - Article
AN - SCOPUS:85017533684
SN - 0045-7949
VL - 187
SP - 88
EP - 100
JO - Computers and Structures
JF - Computers and Structures
ER -