Internal Stress Calculations of Continuous Fiber Reinforced Composites under Transverse Loads

Abstract:

The internal stress calculation of continuous fiber reinforced composites under transverse loads is a complex problem. This paper established a stress calculation model based on "equal strain method", which greatly simplify the formula derivation. Three internal stress formulas under the transverse loads were derived based on the model. The first is the fiber stress formula, which shows that the ratio of fiber stress to load gradually decreases with increasing of fiber volume fraction. The second is the matrix stress formula, which shows the ratio of matrix stress to load gradually increases with increasing of fiber volume fraction. The third is the formula of average shear stress at the interface of fiber and matrix, which curve shows there is a maximum value of interfacial shear stress. The three formulas have important role for checking intensity.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 24-27
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.24
• Online since: August 2013
• Authors: Yan Ru Li*, Zhong Qing Cheng, Hai Bo Jiang
• Keywords: Composite, Continuous Fiber, Modulus of Elasticity, Poisson's Ratio, Theoretical Calculation

References

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