Performance of wrought aluminium and magnesium alloy tubes in three-point bending
Hilditch, Tim, Atwell, Dale, Easton, Mark and Barnett, Matthew Robert 2009, Performance of wrought aluminium and magnesium alloy tubes in three-point bending, Materials and design, vol. 30, no. 7, pp. 2316-2322, doi: 10.1016/j.matdes.2008.11.020.
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Performance of wrought aluminium and magnesium alloy tubes in three-point bending
This present work examines the load carrying capacity, energy absorption and fracture characteristics of wrought magnesium and aluminium alloy tubes in three-point bending. Magnesium alloy AZ31, and aluminium alloys 6063 and 7075, were extruded into cylindrical tubes of both equivalent thickness and mass. A strong thickness effect was present meaning that the AZ31 tube had significantly higher load and energy absorption performance than an equivalent mass 6063 tube, albeit not as high as the 7075 tube. Hinge formation and maximum load was delayed for the magnesium alloy, meaning that a high energy absorption rate persisted to higher deformation displacements than the aluminium alloys. It was also found that fracture during deformation was dependent on the indenter diameter, tube thickness and lower support separation.
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