Dynamic Crack Models on Problem of Bridging Fiber Pull-Out of Composite Materials

Lü Nian-chun; CHENG Yun-hong; XU Hong-min; CHENG Jin; TANG Li-qiang

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Article Navigation > Applied Mathematics and Mechanics > 2004 > 25(10): 1093-1100

Lü Nian-chun, CHENG Yun-hong, XU Hong-min, CHENG Jin, TANG Li-qiang. Dynamic Crack Models on Problem of Bridging Fiber Pull-Out of Composite Materials[J]. Applied Mathematics and Mechanics, 2004, 25(10): 1093-1100.

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Dynamic Crack Models on Problem of Bridging Fiber Pull-Out of Composite Materials

1.
Department of Astronautics and Mechanics, Harbin Institute of Technology, Harbin 150001, P. R. China;
Department of Civil Engineering, Northeastern University, Shenyang 110006, P. R. China;
Department of Material Science and Engineering, Shengyang Institute of Technology, Shenyang 110168, P. R. China;
School of Architectural Engineering, Harbin Engineering University, Harbin 150001, P. R. China

Received Date: 2002-08-13
Rev Recd Date: 2004-03-30
Publish Date: 2004-10-15

Abstract

Abstract

An elastic analysis of an internal central crack with bridging fibers parallel to the free surface in an infinite orthotropic anisotropic elastic plane was performed.A dynamic model of bridging fiber pull-out of composite materials was presented.Resultingly the fiber failure is governed by maximum tensile stress,the fiber breaks and hence the crack extension should occur in self-similar fashion.By the methods of complex functions,the problem studied can be transformed into the dynamic model to the Reimann-Hilbert mixed boundary value problem,and a straightforward and easy analytical solution is presented.Analytical study on the crack propagation subjected to a ladder load and an instantaneous pulse loading is obtained respectively for orthotropic anisotropic body.By utilizing the solution,the concrete solutions of this model are attained by ways of superposition.
- bridging fiber pull-out,
- crack,
- dynamic model,
- analytical solution

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References(18)

References

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