000012645 001__ 12645
000012645 005__ 20160920162635.0
000012645 04107 $$aeng
000012645 046__ $$k2016-09-05
000012645 100__ $$aNsanzubuhoro, R.
000012645 24500 $$aPredicting the head-area slopes of round leaks in pipes subject to elastic deformations

000012645 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012645 260__ $$bTaylor and Francis Group, London, UK
000012645 506__ $$arestricted
000012645 520__ $$2eng$$aLeak openings in water distribution system pipes are not static, but have areas that vary with pressure. These changes in area affect the way that leakage respond to changes in pressure, and are thus important for municipal engineers to understand. In this study, a Finite Element Analysis (FEA) study was carried out to model the behaviour of round holes in pipes with varying pressure under elastic conditions. It was found that the areas of the holes vary as linear functions of pressure in the pipe. The FEA was then used to better understand the factors that affect the slope of this line, called the head-area slope m. Parameters investigated in the study include the pipe material (elastic modulus, Poisson’s ratio and longitudinal stress), pipe geometry (wall thickness and internal diameter) and hole diameter. Solid mechanics theory was then used to develop an equation to predict the head-area slope of round holes in different pipes and materials. Various techniques were used in the development of the equation, and a reasonable expression was found that may be used in further research and practice.

000012645 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012645 653__ $$a

000012645 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012645 720__ $$aNsanzubuhoro, R.$$iZyl, J.E. van$$iZingoni, A.
000012645 8560_ $$ffischerc@itam.cas.cz
000012645 8564_ $$s1815666$$uhttp://invenio.itam.cas.cz/record/12645/files/093.pdf$$yOriginal version of the author's contribution as presented on CD, 093.pdf.
000012645 962__ $$r12552
000012645 980__ $$aPAPER