STP408

    Material Destruction Due to Liquid Impact

    Published: Jan 1967


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    Abstract

    A survey is given of the rain erosion behavior of all classes of materials in the drop-impact velocity range between 200 and 400 m/sec. The results are compared with the cavitation behavior of matter and with the results of single water jet impact test. The dependence of the erosion properties upon velocity, angle of incidence, and drop size has been studied. If the materials are to be classified by increasing rain erosion strength of the most resistive representative of a material class, the order is the following: glasses, plastics, ceramics, and metals. The process which produces cracks and the material breakup is explained. The net result of this explanation provides guides for developing materials with improved erosion strength. By the energy balance of the erosion process, relations between the erosion strength and the mechanical properties of materials are given, and characteristic parameters for describing the erosion properties are proposed.

    Keywords:

    rain erosion, erosion, cavitation, liquid impact, impact, cold working, crack propagation


    Author Information:

    Hoff, G.
    Dornier-System GmbH, Friedrichshafen

    Langbein, G.
    Dornier-System GmbH, Friedrichshafen

    Rieger, H.
    Dornier-System GmbH, Friedrichshafen


    Paper ID: STP46045S

    Committee/Subcommittee: G02.10

    DOI: 10.1520/STP46045S


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