Fracture behaviour of plastic-copper interfaces in the crack opening mode (mode I) after neutron and gamma irradiation

✍ Scribed by K. Humer; E.K. Tschegg; R. Platschka; H.W. Weber

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 325 KB
• Volume: 35
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(95)90906-v

✦ Synopsis

We report on the mechanical properties of interfaces between fibre reinforced plastics and copper in the crack opening mode (mode I) at room temperature and at 77 K. In addition, neutron and gamma irradiations were performed in the TRIGA reactor (Vienna, Austria) up to a fluence of 1 x 1O22 m-2 (E> 0.1 MeV) prior to testing. The mechanical tests were made on two-dimensionally reinforced epoxy (ISOVAL IO)copper interfaces at room temperature and at 77 K with a newly developed and experimentally simple splitting method. Details of the testing technique as well as influences of different treatments of the copper surface and of irradiation on the mechanical behaviour of the interfaces are presented and discussed, together with results of acoustic emission and fractographic investigations of the fracture surfaces.