Issue 30

A. Martín-Meizoso et alii, Frattura ed Integrità Strutturale, 30 (2014) 14-22; DOI: 10.3221/IGF-ESIS.30.03

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Mid-Distance from Flame cut (microns)

Engineering STRAIN

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Figure 9 : Evolution of engineering stress vs. engineering strain as a function of distance from oxy-fuel cut edge, for middle thickness location of cut edge. Fig. 10 represents the evolution of mechanical strength parameters (yield stress, ultimate tensile stress…) vs. distance from the oxy-fuel cut, for the middle thickness location. Fig. 11 shows the evolution of the maximum uniform strain (until necking) and fracture strain vs. distance from the oxy fuel cut, at the same middle location. Fig. 12 shows the evolution of the strain hardening index vs. distance from cut, for the three studied locations: 2.5 mm below the top surface, at the middle of the cut edge thickness and 2.5 mm above the exit side.

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Vicker'sHardness05 SoHollomon's fitting SinfVoce's fitting UltimateTensileStrength Yieldstrength0.2% SoVoce's fitting

Vicker'sHardness05 SoHollomon's fitting SinfVoce's fitting UltimateTensileStrength Yieldstrength0.2% SoVoce's fitting

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Vicker'sHardness05 SoHollomon's fitting SinfVoce's fitting UltimateTensileStrength Yieldstrength0.2% SoVoce's fitting

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Figure 10 : Evolution of Vickers’ hardness (converted into MPa units), yield strength, ultimate tensile and other fitting parameters with MPa units, 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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