Paper 9.1 - Steel Innovations Conference 2013 Christchurch-Ver4.pdf
Paper 9.1 - Steel Innovations Conference 2013 Christchurch-Ver4.pdf
Paper 9.1 - Steel Innovations Conference 2013 Christchurch-Ver4.pdf
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Conclusions<br />
• Need knowledge of Standards & <strong>Steel</strong> Mill Certificates<br />
• Hardness technique for determining plastic strain is credible<br />
• Portable Leeb hardness tester can give consistent results<br />
• The hardness variations in EBF link confirmed by tensile tests.<br />
• Testing must be done in the centre of the beam web<br />
• There was about 7 – 7.5% plastic strain in the active link beam.<br />
• Pre-existing plastic strain near the flanges produced by low<br />
temperature roll straightening of the flanges - strain was about 3%.<br />
• <strong>Steel</strong> plastically deformed 7.5% would still just meet 70 J at 0˚C
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