Two Fracture Dynamics Problems of Fiber Reinforced Ceramics

Nian Chun Lü; Yun Hong Cheng; Jin Li Ji

doi:10.4028/www.scientific.net/KEM.512-515.955

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 512-515Two Fracture Dynamics Problems of Fiber Reinforced...

Two Fracture Dynamics Problems of Fiber Reinforced Ceramics

Abstract:

After fiber reinforced ceramics occur a crack, its bridging fibers must engender, moreover the crack usually runs in the format of similarity. In order to analyze easily dynamic problems of fiber reinforced ceramics, bridging fiber segment is substituted for loads. When a crack moves at high speed, its fibers will break continuously. By application of the built dynamic model and the ways of self-similar functions, analytical solutions of the displacements, stresses and dynamic stress intensity factors under the action of a running increasing force Px2/t2 and a motive unit step load, respectively, can be gained, and it is also used to attain the concrete solution by means of superposition theorem.

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Periodical:

Key Engineering Materials (Volumes 512-515)

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955-958

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.512-515.955

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Online since:

June 2012

Authors:

Nian Chun Lü, Yun Hong Cheng, Jin Li Ji

Keywords:

Analytical Solution, Bridging Fibers, Crack, Dynamic Model, Fiber Reinforced Ceramics

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References

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