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Enhancement of fatigue life of rail-end-bolt holes by slide diamond burnishing

The fatigue failure around rail-end-bolt holes is particularly dangerous since it leads to derailment of trains and consequently to inevitable accidents. It is well-known that the fatigue life of structural holed components, subjected to cyclic load, can be increased by generating compressive hoop stresses around the holes.

tohitohi
19/05/2020

Rail-end-bolt holes

Finite element simulation

Enhancement of fatigue life

Slide diamond burnishing

Finite element modeling

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