NDLI: High strain rate behavior of 4-step 3D braided composites under compressive failure

Content Provider	Springer Nature Link
Author	Sun, Baozhong Gu, Bohong
Copyright Year	2006
Abstract	The out-of-plane and in-plane compressive failure behavior of 4-step 3D braided composite materials was investigated at quasi-static and high strain rates. The out-of-plane and in-plane direction compressive tests at high strain rates from 800/s to 3,500/s were tested with the split Hopkinson pressure bar (SHPB) technique. The quasi-static compressive tests were conducted on a MTS 810.23 tester and compared with those at high strain rates. The comparisons indicate that the failure stress, failure strain and compressive stiffness both for out-of-plane and in-plane loading directions are rate sensitive. For example, the failure stress, failure strain and stiffness are 55.19 MPa, 6.70% and 1.35 GPa respectively as opposed to 145.00 MPa, 1.21% and 13.50 GPa respectively for strain rate of 2,500 s$^{−1}$ under in-plane compression. The 3D braided composites have higher values of failure stress and strain for out-of-plane than for in-plane compression at the same strain rate; however, the in-plane compression stiffness is higher than that of out-of-plane compression at high strain rates. The compressive failure mode of 3D braided composites in the out-of-plane direction is mainly shear failure at various strain rates, while for the in-plane direction it is mainly cracking of matrix.
Starting Page	2463
Ending Page	2470
Page Count	8
File Format	PDF
ISSN	00222461
Journal	Journal of Materials Science
Volume Number	42
Issue Number	7
e-ISSN	15734803
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2006-12-23
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mechanics Crystallography Continuum Mechanics and Mechanics of Materials Polymer Sciences Characterization and Evaluation of Materials Materials Science
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Mechanics of Materials Mechanical Engineering Polymers and Plastics

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