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Fusion simulation of electrofusion polyethylene joints for gas distribution
Author(s) -
Nakashiba Akio,
Nishimura Hiroyuki,
Inoue Fumio,
Nakagawa Tomokazu,
Homma Katsuhiko,
Nakazato Hideo
Publication year - 1993
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760331708
Subject(s) - electrofusion , fusion , materials science , joint (building) , finite element method , fusion power , process (computing) , thermocouple , polyethylene , nuclear fusion , thermal , nuclear engineering , composite material , mechanical engineering , structural engineering , computer science , thermodynamics , engineering , plasma , philosophy , linguistics , physics , operating system , quantum mechanics
Fusion simulation is one of the key techniques used in designing and producing electrofusion joints for gas distribution and in evaluating fusion joint integrity. This paper describes the results of numerical simulation of the thermal fusion process, using the finite element method. A nonlinear heat transfer computer program was used to obtain the temperature profile of an electrofusion joint at fusion. It was found that the temperature experimentally measured at the fusion interface by insertion of a thermocouple agreed with the temperature computed by fusion simulation. In addition, as both the temperature at the fusion interface and the resin temperature close to the wire corresponding to the mechanical strength of the fusion part were measured, it was confirmed that the proper heating conditions for each joint could be determined based on the results of the fusion simulation.