Journal
POLYMER TESTING
Volume 115, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymertesting.2022.107744
Keywords
Polymer matrix composites; Damage accumulation; Fatigue propagation; Fatigue crack growth
Funding
- National Natural Science Foundation, China [52073224, 52173080, 12002248]
- Key Laboratory Fund of Ultra -high Temperature Structural Composite Materials [6142911200310, 6142911200205]
- Key Research and Development Program of Xianyang Science and Technology Bureau, China [2021ZDYF-GY- 0035]
- Local Transformation Program of Major Scientific and Techno- logical Achievements of Xi?an Science and Technology Bureau, China [2021SFGX0003]
- Technology Innovation Guidance Special Program of Shaanxi Province, China [2022CGBX- 10]
Ask authors/readers for more resources
This study investigated the static bending and flexural fatigue properties of 3D stitched composites with different stitching yarns. The results show that different stitching yarn types affected the static flexural strength and fatigue failure mechanism of the composites. Using PBO fibers can effectively improve the fatigue life.
This work investigated the static bending and flexural fatigue properties of 3D stitched composites with different stitching yarns. The carbon and PBO fibers were adopted to reveal the effects of stitching yarn types on the fatigue characteristics and failure propagation of 3D stitched composites at low-stress levels by a high-speed camera. The results show that different stitching yarn types affected the static flexural strength of 3D stitched composites but did not affect their modulus. In addition, different stitching yarn types changed the fatigue failure mechanism of 3D stitched composites. The fatigue life of 3D stitched composites can be effectively improved by using PBO fibers since the PBO fiber can effectively delay shear crack growth and prolong the period of the catastrophic failure stage. This work proposed a new scheme for improving the mechanical properties of stitched composites.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available