Abstract
A detailed evaluation of the suitability of the subscale Iosipescu V-notch unidirectional composite specimens tested in the modified Wyoming fixture is presented. A linear finite element model is developed to compare the shear strain field in the test sections of the standard and subscale specimens. The experimental results from traditional strain-gage and moiré interferometry techniques for standard and subscale graphite-epoxy unidirectional specimens are also compared. It was found that the shear responses of the standard and subscale 90° specimens are identical. However, the shear strain distributions for the standard and subscale 0° specimens are different. Accurate measurement of the shear moduli can still be obtained for the subscale specimens if the appropriate correction factors are used.
| Original language | English |
|---|---|
| Pages (from-to) | 1-10 |
| Number of pages | 10 |
| Journal | Science and Engineering of Composite Materials |
| Volume | 3 |
| Issue number | 1 |
| DOIs | |
| State | Published - 03 1994 |
| Externally published | Yes |
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