Indentation fracture of glass and mechanisms of material removal

被引:18
作者
Gorham, DA [1 ]
Salman, AD [1 ]
机构
[1] Open Univ, Fac Technol, Milton Keynes MK7 6AA, Bucks, England
关键词
cone cracks; soda-lime glass plates; erosion test; blunt indentation;
D O I
10.1016/S0043-1648(99)00179-9
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Blunt indentation experiments at high loads have been carried out on soda-lime glass plates using detailed in situ observation. The development of failure over a range of loads is described, showing a number of material removal mechanisms that arise from the propagation of primary and secondary cone cracks. Various inelastic deformation processes are also involved in the development of failure under these conditions. The observed mechanisms of material removal imply a velocity exponent in erosion tests that is rather higher than that seen when lateral cracks are the dominant cause of material loss. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
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页码:151 / 156
页数:6
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