Ultimate tensile strength testing campaign on ITER pre-compression ring mock-ups

被引：4
|
作者：
Rossi, Paolo [1 ]
Capobianchi, Mario [1 ]
Crescenzi, Fabio [1 ]
Massimi, Alberto [1 ]
Mugnaini, Giampiero [1 ]
Nardi, Claudio [1 ]
Pizzuto, Aldo [1 ]
Bettinali, Livio [2 ]
Knaster, Juan [3 ]
Rajainmaki, Hannu [4 ]
Evans, David [5 ]
机构：
[1] Assoc EURATOM ENEA Fus, CR Frascati, I-00044 Rome, Italy
[2] Consorzio CREATE, I-80125 Naples, Italy
[3] ITER, F-13067 St Paul Les Durance, France
[4] FUSION FOR ENERGY, Barcelona 08019, Spain
[5] Adv Cryogen Mat, Abingdon, Oxon, England
来源：
FUSION ENGINEERING AND DESIGN | 2011年 / 86卷 / 6-8期
关键词：
Composite; Epoxy; Fiberglass; ITER; Pre-compression rings; Ultimate tensile strength (UTS);
D O I：
10.1016/j.fusengdes.2011.04.050
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
ENEA has developed and characterized a high strength glass fibre-epoxy composite as reference material for the manufacture of the two sets of 3 pre-compression rings located at top and bottom of the inner straight leg region of the ITER Toroidal Field (TF) coils. These rings will provide a radial force of about 70 MN/coil at cryogenic temperature pulling the TF coils into contact and reducing toroidal tension in the four outer intercoil structures. The paper describes the ultimate tensile strength (UTS) testing campaign carried out at ENEA Frascati laboratories on six different rings manufactured winding S2 glass fibers on a diameter of 1 m (1/5 of the full scale) by both vacuum pressure epoxy impregnation and filament wet winding techniques. The volumetric glass content was around 70%. The rings were expanded with radial steps of 0.1 mm into a dedicated hydraulic testing machine consisting of 18 radial actuators working in position control with a total capability of 1000 tons. All the mock-ups showed very high tensile strength (1550 MPa is the average of the mean hoop stresses at failure) and a practically constant tensile modulus. The test results are reported and discussed. (C) 2011 EURATOM ENEA Association-ENEA Fusion Unit. Published by Elsevier By. All rights reserved.
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收藏
页码：1519 / 1522
页数：4
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