Reactor irradiation effects on the ultimate tensile and the interlaminar shear strength of carbon fibre reinforced epoxies at 77 K
✍ Scribed by S.M Spießberger; K Humer; E.K Tschegg; H.W Weber; H Gerstenberg
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 897 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0011-2275
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✦ Synopsis
A carbon fibre reinforced plastics material (CFRP) 'TORAYCA T300 3K', which was developed for various applications, including cryogenics, was irradiated at 5 K and 340 K with different reactor spectra up to a fast neutron fluence of 5 × 10 22 m -2 (E Ͼ 0.1 MeV). All investigations in the interlaminar shear mode as well as the tensile tests were made at 77 K, the samples subjected to 5 K irradiation were measured before and after an annealing cycle (of about one day) to room temperature. Fractographic examinations of the tensile samples were used to examine the complicated fracture process. Both the interlaminar shear strength and the ultimate tensile strength show good radiation resistance at the lowest total absorbed dose ( ෂ 5 × 10 6 Gy), but fail at higher dose levels ( ෂ 10 8 Gy).