Abstract
A Brazilian disk test specimen is calibrated for the determination of the mixed-mode fracture toughness of orthotropic materials. The specimen is well-suited for investigating the fracture toughness of orthotropic materials over the complete range of mode mixtures, 0-90°. The K dominance zone around the crack tip exists and can be as large as a/5 for the Brazilian disk, provided that the zone of nonlinear effects is small (a is the half-crack length). The rationale for determining the stress intensity factors under mixed-mode loading conditions and the calibration curves, relevant to a number of orthotropic materials, relating maximum load and loading angle to KI and KII are presented.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1223-1232 |
| Number of pages | 10 |
| Journal | Acta Materialia |
| Volume | 44 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 1996 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Polymers and Plastics
- Metals and Alloys
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Huang, Y., Liu, C., & Stout, M. G. (1996). A Brazilian disk for measuring fracture toughness of orthotropic materials. Acta Materialia, 44(3), 1223-1232. https://doi.org/10.1016/1359-6454(95)00229-4