Issue 50

K. Meftah et alii, Frattura ed Integrità Strutturale, 50 (2019) 276-285; DOI: 10.3221/IGF-ESIS.50.23 283 to that of the 9-node Hétérosis element. Fig. 6 shows the progression of the plastic regions at different levels of loading. From this figure, first yielding is observed at the four corners of the plate and then at the center, and the plastic regions extend along the diagonals. ² . . 0 LM DW 0 ² . M Lq 0 5 10 15 20 25 0 5 10 15 20 25 30 Elément Hétérosis Elément Q4Gamma Hétérosis element Q4G ele ent Figure 4 : Load-deflection curves for simply supported square plate ( h = 0.01). 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0 5 10 15 20 25 30 Elément Hétérosis Elément Q4Gamma ² . . 0 LM DW 0 ² . M Lq Hétérosis element Q4G ele ent Figure 5 : Load-deflection curves for simply supported square plate ( h = 0.5). 0 0.125 0.25 0.375 0.5 0.625 0.75 0.875 1 0 0.125 0.25 0.375 0.5 0.625 0.75 0.875 1 4.60E4+ 4.18E4 to 4.60E4 3.77E4 to 4.18E4 3.35E4 to 3.77E4 2.93E4 to 3.35E4 2.51E4 to 2.93E4 2.09E4 to 2.51E4 1.67E4 to 2.09E4 1.26E4 to 1.67E4 8.37E3 to 1.26E4 4.18E3 to 8.37E3 0.00E0 to 4.18E3 Figure 6 : Progression of Yield regions for simply supported square plate ( h = 0.01).