Issue 30
A. Martín-Meizoso et alii, Frattura ed Integrità Strutturale, 30 (2014) 14-22; DOI: 10.3221/IGF-ESIS.30.03
4‐25‐F‐M
4‐25‐F‐T
0,35
Fracturestrain Uniform strain Critical strain,eps_c (Voce's fitting)
0,20
0,30
0,25
0,15
0,20
Strain,
Strain,
0,10
0,15
0,10
0,05
Fracturestrain Uniform strain Critical strain,eps_c (Voce's fitting)
0,05
0,00
0,00
0
300
600
900
1200
1500
1800
2100
2400
0
300
600
900
1200
1500
1800
2100
2400
Mid‐distancefromOXYFUELcut (microns)
Mid‐distancefromOXYFUELcut (microns)
4‐25‐F‐B
Fracturestrain Uniformstrain Critical strain,eps_c (Voce's fitting)
0,20
0,15
Strain,
0,10
0,05
0,00
0
300
600
900
1200
1500
1800
2100
2400
Mid‐distancefromOXYFUELcut (microns)
Figure 11 : Evolution of uniform strain (necking strain), fracture of maximum strain and critical strain (of Voce’s fitting), as a function of distance from oxy-fuel cut for the top, middle and bottom positions across the cut edge thickness.
4‐25‐F‐M
0,18
Top Middle Bottom
0,16
0,14
0,12
0,04 Hardeningexponent, n (Hollomon's) 0,06 0,08 0,10
0,02
0,00
0
300
600
900
1200
1500
1800
2100
2400
Mid‐distancefromOXYFUELcut (microns)
Figure 12 : Evolution of strain hardening index (Voce’s fitting) as a function of distance from oxy-fuel cut for the top, middle and bottom positions across the cut edge thickness.
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