Issue 76

H. Houri et alii, Fracture and Structural Integrity, 76 (2026) 238-264; DOI: 10.3221/IGF-ESIS.76.15

configuration with L = 20 mm proves to be the most favorable, as it minimizes strain localization while promoting overall homogeneity in the material.

a (L=20mm)

b (L=30mm)

c (L=40mm) d (L=50mm) Figure 11: Distribution of the equivalent plastic strain along the selected cross-section (20 mm) for different corner angles in the case of the 105° 2-ECAE die.

0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 Equivalente Plastic Strain

L = 20 mm L = 30 mm L = 40 mm L = 50 mm

0,0

0,2

0,4

0,6

0,8

1,0

Normalized Distance

Figure 12: Distribution of the equivalent plastic strain along the selected cross-section for φ = 15° at different channel lengths in the case of the 105° 2-ECAE die.

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