Back to Search
Start Over
Comparison of the mechanical deterioration behavior of C/BMI composite under hygro-thermal or vacuum-thermal cycling
- Source :
- Composites Part A: Applied Science and Manufacturing. 119:235-245
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- The effects of vacuum-thermal cycling and hygro-thermal cycling on the fiber/matrix interface characteristics of a carbon fiber reinforced bismaleimide (C/BMI) composite were investigated to assess the degradation behavior of the mechanical property of C/BMI composite in low earth orbit (LEO) and atmosphere environment. The feasibility of using one comprehensive accelerated test procedure capable of representing the LEO and atmosphere environmental effects simultaneously for the aerospace plane was explored for the first time. A simplified mathematical approach and the corresponding model was supplied firstly to prove the reliability and effectiveness of the widely-used SEM observation method in the assessment of fiber matrix interface properties. The dominating degradation mechanism of the C/BMI composites caused by vacuum-thermal cycling in LEO environment is the interfacial sliding induced by thermal stress, whereas the thermal oxidation and decomposition of the matrix is the main degradation mechanism after hygro-thermal cycling in atmosphere environment. Candidate composite materials for aerospace plane must be tested in atmosphere and LEO environments separately in the environmental simulation experiments before their application.
- Subjects :
- Thermal oxidation
Materials science
Composite number
02 engineering and technology
Temperature cycling
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Atmosphere
Mechanics of Materials
Thermal
Ceramics and Composites
Degradation (geology)
Fiber
Composite material
0210 nano-technology
Cycling
Subjects
Details
- ISSN :
- 1359835X
- Volume :
- 119
- Database :
- OpenAIRE
- Journal :
- Composites Part A: Applied Science and Manufacturing
- Accession number :
- edsair.doi...........026eeb10526b077cddb4c7370bf65d7a