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  • Impact erosion by high velocity micro-particles on a quartz crystal

    Author(s)
    Qi, Huan
    Fan, Jingming
    Wang, Jun
    Li, Huaizhong
    Griffith University Author(s)
    Li, Huaizhong
    Year published
    2015
    Metadata
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    Abstract
    A computational model using the discrete element method is presented to investigate the high velocity micro-particle impact process on a quartz crystal. The kinetic energy transfer from the impact particles to the target material is discussed. It shows that within the conditions considered 60–88% of the impact energy is consumed for crack formation and propagation, and the initiation of micro-cracks by an impact is mainly attributed to the shear stresses, while tensile stresses create more lateral and median cracks in the subsurface of the target than shear stresses. It also shows that a smaller impact angle with a lower ...
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    A computational model using the discrete element method is presented to investigate the high velocity micro-particle impact process on a quartz crystal. The kinetic energy transfer from the impact particles to the target material is discussed. It shows that within the conditions considered 60–88% of the impact energy is consumed for crack formation and propagation, and the initiation of micro-cracks by an impact is mainly attributed to the shear stresses, while tensile stresses create more lateral and median cracks in the subsurface of the target than shear stresses. It also shows that a smaller impact angle with a lower particle velocity within the range considered in this study yields less subsurface damage to the target and also lower material erosion.
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    Journal Title
    Tribology International
    Volume
    82
    Issue
    Part A
    DOI
    https://doi.org/10.1016/j.triboint.2014.10.016
    Subject
    Manufacturing engineering
    Mechanical engineering
    Mechanical engineering not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/141155
    Collection
    • Journal articles

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