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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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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