Issue 51

R. Landolfo et alii, Frattura ed Integrità Strutturale, 51 (2020) 517-533; DOI: 10.3221/IGF-ESIS.51.39 527 a) b) d) e) c) f) Figure 10 : Failure modes of the façade with openings subjected to short settlement and for the two block sizes (40x25 cm first row and 25x12 cm second row). (a), (d): RBLA non-associative solution with no friction on vertical contacts (Type A); (b), (e): RBLA associative solution with friction on vertical contacts (Type B); (c), (f): FE associative solutions. Block size [cm] ρ [kN/m 3 ] µ [-] RB with no friction on vertical contacts (Type A) RB with friction on vertical contacts (Type B) Finite Element Model fs [kN] CPU Time [s] fs [kN] CPU Time [s] fs [kN] CPU Time [s] 40x25 16 0.6 278.46 21.83 259.60 4.03 288.31 87.32 25x12 273.66 397.06 251.85 29.30 279.41 88.51 Table 4 : Base reaction and CPU Time in the case of the façade with openings subjected to short settlements. Block size [cm] ρ [kN/m 3 ] µ [-] RB with no friction on vertical contacts (Type A) RB with friction on vertical contacts (Type B) Finite Element Model fs [kN] CPU Time [s] fs [kN] CPU Time [s] fs [kN] CPU Time [s] 40x25 16 0.6 638.05 47.45 604.67 4.42 668.01 85.31 25x12 644.73 233.12 610.34 40.43 665.06 89.21 Table 5 : Base reaction and CPU Time in the case of the façade with openings subjected to medium settlements. Block size [cm] ρ [kN/m 3 ] µ [-] RB with no friction on vertical contacts (Type A) RB with friction on vertical contacts (Type B) Finite Element Model fs [kN] CPU Time [s] fs [kN] CPU Time [s] fs [kN] CPU Time [s] 40x25 16 0.6 873.30 14.04 734.92 5.50 890.31 81.25 25x12 808.60 575.01 745.14 43.42 877.51 78.61 Table 6 : Base reaction and CPU Time in the case of the façade with openings subjected to long settlements.