|Budget Amount *help
¥153,140,000 (Direct Cost: ¥117,800,000、Indirect Cost: ¥35,340,000)
Fiscal Year 2018: ¥23,270,000 (Direct Cost: ¥17,900,000、Indirect Cost: ¥5,370,000)
Fiscal Year 2017: ¥32,110,000 (Direct Cost: ¥24,700,000、Indirect Cost: ¥7,410,000)
Fiscal Year 2016: ¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
Fiscal Year 2015: ¥36,400,000 (Direct Cost: ¥28,000,000、Indirect Cost: ¥8,400,000)
Fiscal Year 2014: ¥37,700,000 (Direct Cost: ¥29,000,000、Indirect Cost: ¥8,700,000)
|Outline of Final Research Achievements
Optical fiber based simultaneous strain and temperature measurement technology was extended to cover the process monitoring of novel carbon fiber reinforced plastics (CFRP). We proposed "life cycle monitoring method" to monitor internal strains throughout the material life from processing, manufacturing, assembly, to operation. We also demonstrated the practical validity of this method for excellent quality assurance and maintenance of CFRP. First we developed a in-process internal strain monitoring system during practical CFRP processing using embedded optical fiber sensors, and internal strain/property change was successfully obtained for the first time.
This in-process monitoring system was also used to characterize some novel CFRP, such as out-of-autoclave low-pressure CFRP processing, thermoplastic CFRP, secondary bonding CFRP structures and complex shaped CFRP structures. Finally the system was used for prototype aerospace CFRP structures to demonstrate the practical validity.