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Title: EFFECT OF GAMMA RAY IRRADIATION ON INTERLAMINAR SHEAR STRENGTH OF GLASS FIBER REINFORCED PLASTICS AT 77 K

Abstract

It is known that an organic material is damaged by gamma ray irradiation, and the strength after irradiation has dependence on the gamma ray dose. These issues are important not only to make global understanding of electric insulating performance of glass fiber reinforced plastics (GFRP) under irradiation condition but also to develop new insulation materials. This paper presents the dependence of fracture mode and interlaminar shear strength (ILSS) on the material and the gamma ray irradiation effect on the fracture mode and the ILSS. 6 mm radius loading nose and supports were used to prompt ILS fracture for a short beam test. A 2.5 mm thick small specimen machined out of a 13 mm thick G-10CR GFRP plate (sliced specimen) showed lower ILSS and translaminar shear (TLS) fracture, although the same size specimen prepared from a 2.5 mm G-10CR GFRP plate (non-sliced specimen) showed ILS fracture and the higher ILSS. Both type of specimens showed the degradation of ILSS after gamma ray irradiation. The fracture mode of the non-sliced specimen changed from ILS to TLS fracture and no bending fracture was observed. The resistance to shear deformation of glass cloth/epoxy laminate structure would be damaged by the irradiation.

Authors:
 [1]; ;  [2]
  1. National Institute for Fusion Science Toki, Gifu, 509-5292 (Japan)
  2. Graduate School of Osaka University Suita, Osaka, 565-0871 (Japan)
Publication Date:
OSTI Identifier:
21136739
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 986; Journal Issue: 1; Conference: International Cryogenic Materials Conference - ICMC, Vol. 54: Advances in cryogenic engineering materials, Chattanooga, TN (United States), 16-20 Jul 2007; Other Information: DOI: 10.1063/1.2900349; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; EPOXIDES; FIBERGLASS; FRACTURES; GAMMA RADIATION; IRRADIATION; PERFORMANCE TESTING; PHYSICAL RADIATION EFFECTS; REINFORCED PLASTICS; SHEAR; SHEAR PROPERTIES; TEMPERATURE RANGE 0065-0273 K

Citation Formats

Nishimura, A, Nishijima, S, and Izumi, Y. EFFECT OF GAMMA RAY IRRADIATION ON INTERLAMINAR SHEAR STRENGTH OF GLASS FIBER REINFORCED PLASTICS AT 77 K. United States: N. p., 2008. Web. doi:10.1063/1.2900349.
Nishimura, A, Nishijima, S, & Izumi, Y. EFFECT OF GAMMA RAY IRRADIATION ON INTERLAMINAR SHEAR STRENGTH OF GLASS FIBER REINFORCED PLASTICS AT 77 K. United States. https://doi.org/10.1063/1.2900349
Nishimura, A, Nishijima, S, and Izumi, Y. 2008. "EFFECT OF GAMMA RAY IRRADIATION ON INTERLAMINAR SHEAR STRENGTH OF GLASS FIBER REINFORCED PLASTICS AT 77 K". United States. https://doi.org/10.1063/1.2900349.
@article{osti_21136739,
title = {EFFECT OF GAMMA RAY IRRADIATION ON INTERLAMINAR SHEAR STRENGTH OF GLASS FIBER REINFORCED PLASTICS AT 77 K},
author = {Nishimura, A and Nishijima, S and Izumi, Y},
abstractNote = {It is known that an organic material is damaged by gamma ray irradiation, and the strength after irradiation has dependence on the gamma ray dose. These issues are important not only to make global understanding of electric insulating performance of glass fiber reinforced plastics (GFRP) under irradiation condition but also to develop new insulation materials. This paper presents the dependence of fracture mode and interlaminar shear strength (ILSS) on the material and the gamma ray irradiation effect on the fracture mode and the ILSS. 6 mm radius loading nose and supports were used to prompt ILS fracture for a short beam test. A 2.5 mm thick small specimen machined out of a 13 mm thick G-10CR GFRP plate (sliced specimen) showed lower ILSS and translaminar shear (TLS) fracture, although the same size specimen prepared from a 2.5 mm G-10CR GFRP plate (non-sliced specimen) showed ILS fracture and the higher ILSS. Both type of specimens showed the degradation of ILSS after gamma ray irradiation. The fracture mode of the non-sliced specimen changed from ILS to TLS fracture and no bending fracture was observed. The resistance to shear deformation of glass cloth/epoxy laminate structure would be damaged by the irradiation.},
doi = {10.1063/1.2900349},
url = {https://www.osti.gov/biblio/21136739}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 986,
place = {United States},
year = {Mon Mar 03 00:00:00 EST 2008},
month = {Mon Mar 03 00:00:00 EST 2008}
}