Effect of tapered angle of a conical nose indenter on the energy absorbing variation of a copper pipe subjected to axial crushing
In the present research work, a 100 mm long copper pipe segment with a 1 mm wall thickness is subjected to a drop weight impact by a conical shaped steel indenter with varying nose angles but constant mass. The impact velocity of the indenter was kept constant so that the kinetic energy available...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Inderscience Publishers
2012
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/26901/1/IJESMS040403_SHAH.pdf http://irep.iium.edu.my/26901/ http://www.inderscience.com/info/inarticle.php?artid=50004 |
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| Summary: | In the present research work, a 100 mm long copper pipe segment with a 1 mm wall
thickness is subjected to a drop weight impact by a conical shaped steel indenter with varying
nose angles but constant mass. The impact velocity of the indenter was kept constant so that the
kinetic energy available at impact was same for all cases. The effect of indenter nose angle from
10° to 85° was investigated with absorbed energy rising with the increasing nose angle. The
problem was modelled in explicit finite element code LS Dyna. The variations in pipe folding
with increasing nose angle were observed. Moreover, it was found that at a particular indenter
nose angle the pipe was folded onto itself which may be a helpful hint in manufacturing of
straight double wall pipes. |
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