Fracture modes in off‐axis fiber composites
Source abstract
Abstract
Abstract Criteria have been developed for identifying, characterizing, and quantifying fracture modes in high‐modulus graphite‐fiber/resin unidirectional composites subjected to off‐axis tensile loading. Procedures are described which use sensitivity analyses and off‐axis data to determine the uniaxial strength of fiber composites. It was found that off‐axis composites failed by three fracture modes, which produce unique fracture surface characteristics. The stress that dominates each fracture mode and the load angle range of its dominance can be identified. Linear composite mechanics is adequate to describe quantitatively the mechanical behavior of off‐axis data are comparable to those measured in uneasily tests.
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Research context
OpenAlex topics: Mechanical Behavior of Composites · Advanced ceramic materials synthesis · Graphite, nuclear technology, radiation studies
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References (10)
Show source-provided references
1. J. H.SinclairandC. C.Chamois “Mechanical Behavior and Fracture Characteristics of Off‐Axis Fiber Composites. I—Experimental Investigation ” NASA TP‐1081 (1977).
2. C. C.ChamoisandJ. H.Sinclair “Mechanical Behavior and Fracture Characteristics of Off‐Axis Fiber Composites II—Theory and Comparisons ” NASA TP‐1082 (1978).
3. J. H.SinclairandC. C.Chamois “Fracture Surface Characteristics of Off‐Axis Composites ” p.247“in Recent Advances in Engineering Science ” G. C. Sigh ed. Proceedings of the 14th Annual Meeting of the Society of Engineering Science Lehigh University (1971).
4. (Also NASA TM‐73700 1977).
5. C. C.ChamoisandJ. H.Sinclair “The Effects of Eccentricities on the Fracture of Off‐Axis Composites ” Section 22A p.1 Proceedings of the 33rd Annual Conference of the Society of the Plastics Industry Reinforced Plastics/Composites Institute Society of the plastics Industry Inc. (1978).
6. (Also NASA TM‐73826 1978).
7. C. C.Chamis “Computer Code for the Analysis of Multilayered Fiber Composites—Users Manual ” NASA TN D‐7013 (1971).
8. C. C.Chamis “Failure Criteria for Filamentary Composites ” NASA TN D‐5367 (1969).10.1520/STP49826S ↗
9. C. C.ChamisandJ. H.Sinclair “10° Off‐Axis Tensile Test for Intralaminar shear Characterization of Fiber Composites ” NASA TN D‐8215 (1976).
10. 10.1016/0015-0568(72)90010-310.1016/0015-0568(72)90010-3 ↗