Issue 35

R. Sepe et alii, Frattura ed Integrità Strutturale, 35 (2015) 534-550; DOI: 10.3221/IGF-ESIS.35.59 543 Strain gages Uniaxial loading along stringer direction (T2 test) P x = 250 kN FEM strain (a) [μm/m] Experimental strain (b) [μm/m] Deviation = (a-b)*100/b [%] S1 710 692 2.6 S2 -182 -368 -50.5 S3 -249 -273 -8.8 S4 -266 -513 -48.1 S5 -245 -231 6.1 S6 -167 -321 -47.9 S7 711 681 4.4 Table 4 : Numerical and experimental correlation for load configuration T2. Strain gages Biaxial loading (T3 test) P y = 400 kN, P x = 250 kN FEM strain (a) [μm/m] Experimental strain (b) [μm/m] Deviation = (a-b)*100/b [%] S1 267 255 4.7 S2 1136 1117 1.7 S3 1117 1074 4.0 S4 1391 1394 -0.2 S5 1103 1051 9.5 S6 1038 1048 -0.9 S7 291 270 7.7 Table 5 : Numerical and experimental correlation for load configuration T3. Figure 10 : ε x strain for load configuration T1.