Heat generation from epoxy cracks and bond failures

✍ Scribed by H. Maeda; Y. Iwasa

• Book ID: 103055067
• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 355 KB
• Volume: 22
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(82)90133-3

✦ Synopsis

Energy released following cracks and bond failures were measured for an EPON epoxy near 4.2 K. Crack events were monitored with an acoustic emission sensor; the energy released by each crack or bond failure was calculated from the temperature rise measured with thermocouples. Cracking was observed to be load dependent," this may account in part for the training phenomenon observed in bringing epoxy-impregnated superconducting magnets to full design field.