Open AccessThe Very-High-Cycle Fatigue Properties of Carbon Fiber Composite under Three-Point Bending
Author(s) -
Na Ouyang,
Xuan Chen,
Chao Chen,
Wenting Cui
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1622/1/012101
Subject(s) - materials science , composite material , composite number , bending , fatigue testing , three point flexural test , fiber , fatigue limit , structural engineering , engineering
This paper starts from the need for an improved testing system of carbon fiber reinforced plastic composites (CFRP) under three-point-bending to investigate its properties under very high cycle fatigue. An improved testing system for composite material under three-point-bending very-high-cycle fatigue has been thus established. It was found that there is no traditional fatigue limit of carbon fiber composite under very high cycle loading conditions, and the CFRP ultra-high-cycle fatigue specimen exhibits three failure morphology, namely matrix damage at the intersection of fiber bundles, matrix voids near parallel sections of fiber bundles, and penetration of the matrix.