PSI - Issue 2_A

Roberto Brighenti et al. / Procedia Structural Integrity 2 (2016) 2788–2795

2793

6

Author name / Structural Integrity Procedia 00 (2016) 000–000

2

6% 18% 31% 43% ε 0

x

(a)

(b)

(c)

0 0 Green-Lagrange strain, Eyy Green-Lagrange strain, Eyy Green-Lagrange strain, Eyy (f) (i) 1 0 40 0 1 2 3 4 0 1 2 3 4 40

y

80

120

6% 18% 31% 43% 56% 68% ε 0

(d)

(e)

80

120

6% 18% 31% 43% 61% 74% ε 0

(g)

(h)

0

40

80

120

Coordinate x (mm)

Fig. 3. Shapes of the tested plates at incipient failure: (a, d, g) undeformed and (b, e, h) deformed: (a, d, g) specimens No. 1, 2, 3 in the initial configuration, and corresponding deformed shapes for an applied strain level equal to (b) 61.3%, (e) 49.1% , and (h) 68.1%. Further: (c, f, i) green strain distributions along the x-axis for different levels of remote applied strain 0 ε .

(a)

(b)

(c)

Fig. 4. Crack patterns in the specimens after failure. The yellow lines represent the axis of symmetry while the red lines represent the observed crack paths: (a) Specimen No. 1, (b) Specimen No. 2, (c) Specimen No. 3.