Statistical life prediction of a unidirectional carbon fiber/polypropylene laminates under creep bending load. (November 2022)

• Record Type: Journal Article
• Authors: Nakada, Masayuki; Miyano, Yasushi; Morisawa, Yoko; Nonaka, Taiga; Isaki, Takeharu; Hirano, Taiki; Uzawa, Kiyoshi
• Is Part Of: Journal of reinforced plastics and composites. Volume 41:Number 21/22(2022)
• Page Start: 825
• Page End: 836
• Publication Date: 2022-11
• Subjects: CF/PP tape -- creep load -- life prediction -- statistics -- viscoelasticity; Reinforced plastics -- Periodicals; Composite materials -- Periodicals; 620.1923
• DOI: 10.1177/07316844211073596
• Languages: English
• ISSNs: 0731-6844

Abstract

Our developed accelerated testing methodology (ATM) based on matrix resin viscoelasticity for the long-term life prediction of carbon fiber reinforced plastics (CFRP) was applied to assess the statistical prediction of long-term creep failure time of a carbon fiber/polypropylene unidirectional (CF/PP) laminates under creep bending load. Results show that the statistical long-term creep failure times under an arbitrary constant bending load and temperature for the CF/PP laminates can be easily predicted from the statistical static strengths of the CF/PP laminates measured at several temperatures and the viscoelasticity of matrix PP.