Point Load Effect Determination for Different Pressure Pipe SDR Series

Zdeněk Majer; Martin Ševčík; Luboš Náhlík; Pavel Hutař

doi:10.4028/www.scientific.net/KEM.627.373

Paper Titles

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Deformation-Induced Dynamic Precipitation during Creep in Magnesium-Tin Alloys
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Mechanical Properties of Concrete Produced with Wastepaper for Application of Construction Materials
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Point Load Effect Determination for Different Pressure Pipe SDR Series
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A Technique for Detection and Sizing of Cracks on Plate Structures Using Piezoelectric Transducer Networks
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Second-Order Computational Homogenization Scheme Preserving Microlevel C¹ Continuity
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The Relationship of Compressive Strength and Tensile Strength of High Performance Concrete
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Optimized Ultra High Performance Fiber Reinforced Concrete Mixture with Intensified Volumetric Stability
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 627Point Load Effect Determination for Different...

Point Load Effect Determination for Different Pressure Pipe SDR Series

Abstract:

In the paper the polymer pipes loaded by internal pressure with additional point load on the external surface are studied using numerical methods. It is shown that the additional external loading can significantly influence residual lifetime of the pressured pipe. In this study the effect of the pipe geometry is considered. The shape of the propagating crack is estimated based on a special algorithm and the stress intensity factor is evaluated by direct method. The relation between crack size and a geometric function YasYas for specific material and geometrical properties is found. The results of this paper should contribute to better understanding of the real pipe behavior and to prevent unexpected failure of the pressured pipe system due to non-homogenous distribution of the soil load.