SOFTWARE | MACHINERY


(2008) ground motion prediction equation. Using the results from the empirical and simulations methods, the equation by the American Lifelines Alliance (2001) was determined to be the appropri- ate empirical RR equation for the study area. The expected average repair rate of PVC was 0.05


repairs per km length of pipe – or an estimated 84 total PVC pipe repairs across the city. Three fragility curves were generated showing the relationship of peak ground velocity (PGV) and RR – an important tool in estimating underground pipe damage. One limitation of the research was the fact that


only PVC pipes in diameters of 25-400mm were modelled in the study.


FEA for pipe Finite element based interfacial failure analysis of PVC and laminated FRP composite pipe socket joints subjected to internal pressure A study from India has used finite element analysis (FEA) to analyse PVC and composite pipe joints that are subjected to internal pressure. The researchers, from the Indian School of


Mines in Dhanbad, developed various FEA-based codes in Ansys. They used stress-based failure


criteria including parabolic yield criteria and Tsai-Wu failure criteria – as well as strain energy release rates (SERRs) – to simulate the onset of failure and its growth. The bonded PVC and FRP pipe socket joints


were modelled in the Ansys Parametric Design Language (APDL) interface of Ansys 19.1. The 3D brick elements can separate the total SERR into indi- vidual components – and can be used for FE mesh generation in both PVC and composite FRP pipe. “Stress and failure analysis suggested that the pipe-adhesive interface at the junction of the joints was the most vulnerable location for failure under internal pressure,” they wrote in the International Journal of Adhesion and Adhesives.


CLICK ON THE LINKS FOR MORE INFORMATION: � www.plasticpipecalculator.com � www.tue.nl/en � www.konicaminolta.com � www.naist.jp � www.ianus-simulation.de � www.up.edu.ph � https://www.iitism.ac.in/iitismnew � www.ansys.com


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Guill Tool & Engineering is a leading supplier of rubber and plastic extrusion tooling for products ranging in size from 0.005 inch diameter tubing, various size profile extrusions, and up to 20 inch industrial pipe. We offer six or more layer inline dies and crossheads backed by engineering support that's unmatched in the industry.


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