A recent upgrading of a drop hammer rig was carried out and a series of calibration tests established the energy losses in the existing anvil. Both the test results and the mathematical modelling showed that significant energy losses would occur at high impact loads. An alternative anvil design considerably reduced the energy losses and improved the performance of the drop hammer rig.
Get full access to this article
View all access options for this article.
References
1.
AbramowiczW.JonesN.Dynamic progressive buckling of circular and square tubes. Int. J. Impact Engng, 1986, 4(4), 243–270.
2.
JonesN.The rigid-plastic model for structures loaded dynamically. In Design for dynamic loading (the use of model analysis) (Eds ArmerG. S. T.GarasF. K.), 1982, pp. 311–317 (Construction Press).
3.
KothandaramanC. P.SubramanyanS.Heat and mass transfer data book, 3rd edition, 1978, p. 6 (Wiley Eastern Limited, New Delhi).
4.
KelvinLordThomsonW.SirOn the thermo-elastic and thermo-magnetic properties of matter. In Quarterly Journal of Mathematics, Vol. 1, 1857, pp. 57–77 (Cambridge University Press). Also referenced by I. Todhunter and K. Pearson (Eds), A history of theory of elasticity and of the strength of materials, Vol. 2, Part 2, 1893, Ch. XIV, p. 358 (Cambridge University Press).
5.
JouleJ. P.On the thermo-electricity of ferruginious metals, and on the thermal effects of stretching solid bodies. Proc. R. Soc. Lond., 1857, VIII, 355–356. Also referenced by I. Todhunter and K. Pearson (Eds), A history of theory of elasticity and of the strength of materials, Vol. 1, Part 2, 1893, Ch. XI, pp. 477–481 (Cambridge University Press).
6.
JouleJ. P.On the thermal effects of the longitudinal compression of solids. Proc. R. Soc. Lond., 1857, VIII, 564–566. Also referenced by I. Todhunter and K. Pearson (Eds), A history of theory of elasticity and of the strength of materials, Vol. 1, Part 2, 1893, Ch. XI, pp. 477–481 (Cambridge University Press).
7.
JouleJ. P.On the thermodynamic properties of solids. Phil. Trans., 1859, CXLIX, 91–131. Also referenced by I. Todhunter and K. (Eds), A history of theory of elasticity and of strength of materials, Vol. 1, Part 2, 1893, Ch. XI, pp. 477–481 (Cambridge University Press).
8.
FarrenW. S.TaylorG. I.The heat developed during plastic extension of metals. Proc. R. Soc., 1925, Ser. A, 107, 422–451.
9.
TaylorG. I.QuinneyH.The latent energy remaining in a metal after cold working. Proc. R. Soc., 1933, Ser. A, 143, 307–326.
10.
KimYong H.WagonerR. H.An analytical investigation of induced heating in tensile testing. Int. J. Mech. Sci., 1987, 29(3), 179–194.
11.
BirchR. S.JonesN.Measurement of impact loads using a laser Doppler velocimeter. Report ES/32/87, 1987. Department of Mechanical Engineering, University of Liverpool.
12.
AbramowiczW.JonesN.Dynamic axial crushing of square tubes. Int. J. Impact Engng, 1984, 2(2), 179–208.
13.
AbramowiczW.JonesN.Dynamic axial crushing of circular tubes. Int. J. Impact Engng, 1984, 2(3), 263–281.
14.
JonesN.JouriW.BirchR.On the scaling of ship collision damage. Third International Congress of marine technology, Athens, Vol. 2, 1984, pp. 287–295 (International Maritime Association of East Mediterranean).
