Multifunctional steel fibre reinforcement - Wolfsburg AG
Multifunctional steel fibre reinforcement - Wolfsburg AG
Multifunctional steel fibre reinforcement - Wolfsburg AG
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Knot strength (processability)<br />
Relative knot strength = knot efficiency = Knot strength relative to the normal<br />
tensile strength<br />
an indication of the damage tolerance and local deformation tolerance<br />
Knot strength/Tensile strength<br />
1,2<br />
0,8<br />
0,6<br />
0,4<br />
0,2<br />
1<br />
0<br />
Steel <strong>fibre</strong> yarn VN12/1x275/100Z<br />
Steel <strong>fibre</strong> yarn VN12/2x275/175S<br />
Steel <strong>fibre</strong> yarn VN14/1x90/100Z<br />
Steel <strong>fibre</strong> 14µ annealed<br />
Steel <strong>fibre</strong> yarn VN14/1x90/175S<br />
Steel <strong>fibre</strong> 30µ annealed<br />
Steel <strong>fibre</strong> 14µ end drawn<br />
Aramid<br />
· 26 · Sophie Vandewalle – October 2010<br />
Carbon<br />
Glass<br />
Results<br />
Knot strength<br />
Steel <strong>fibre</strong> much better<br />
performance than aramid, carbon<br />
and glass (relative knot strength)<br />
Yarns and individual <strong>fibre</strong>s have<br />
comparable relative knot strength<br />
Annealed <strong>steel</strong> <strong>fibre</strong>s: excellent<br />
relative knot strength!<br />
5
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