Procedures for evaluating time-independent initial stiffness, at the time of application of load, of high-density polyethylene and polyvinyl chloride gravity-flow drainage pipes with curved-beam sections of production run pipe are proposed as an alternative to ASTM Standard D2412 “Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel Plate Loading.” A strategy for predicting relaxation moduli extrapolated to 50 and 100 years is proposed. Laboratory studies are presented and discussed.


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    Titel :

    Curved-Beam Stiffness for Thermoplastic Gravity-Flow Drainage Pipes


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:


    Erscheinungsdatum :

    1999-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Comment on Generalized Stiffness Matrix of a Curved-Beam Element

    ROBERT P. MCBEAN AND S. DONALD SCHABERG | AIAA | 1970