In-plane shearing stress–strain response of glass-fiber-reinforced composites as determined from four-point bending tests
✍ Scribed by E. Sideridis; E. Kyriazi
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 430 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
In this article an experimental study to determine the longitudinal (or in-plane) shearing stress-strain response of a unidirectional fiber-reinforced composite material is presented. The test method used is the four-point bending of a 245" off-axis glass-fiber-reinforced laminate. Although a laminate is used for the investigation of the shearing stress-strain response, it is shown that unidirectional shear properties can be found from the laminate test data following a procedure analogous to that used in previously. Also, the 45' off-axis test of the unidirectional composite in bending was carried out to obtain the in-plane shear modulus and compare it with that obtained by the f 4 5 " off-axis method. Finally both values were compared with the theoretical value of the in-plane shear modulus obtained from a theoretical formula where the concept of boundary interphase between fiber and matrix was introduced. 0 1995 John Wiley & Sons, Inr.