Notch Sensitivity Study in U-notched Polymers Built by Additive Manufacturing (AM)
Author(s): |
Jorge Guillermo Diaz Rodriguez
Alberto David Pertuz Comas Juan David Sandoval Herrera |
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Medium: | journal article |
Language(s): | English |
Published in: | Frattura ed Integrità Strutturale, 27 September 2023, n. 66, v. 17 |
Page(s): | 127-139 |
DOI: | 10.3221/igf-esis.66.07 |
Abstract: |
Onyx ® is a new material composed of Polyamide 6 reinforced with short carbon fiber, used in the novel additive manufacturing composites technique. This paper aims to present the axial fatigue performance of this material with and without U-notches. The experimentally determined S-N fatigue curve was obtained under axial load with a load inversion ratio, R = 0.1, and compared to fatigue performance of U-notched samples ranging from 0.25 to 2 mm radius. In addition, the stress concentration factor was compared for static and alternative loading to obtain the notch sensitivity in terms of the U-notch radius, showing that there is indeed a difference in stress concentration between them. The advantage of the approach is that it permits using commonly used dimensioning methods for this AM material. |
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data sheet - Reference-ID
10746073 - Published on:
28/10/2023 - Last updated on:
28/10/2023