Dynamics of stress redistribution in a ruptured fiber of a composition material
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The dynamic effects contributing to stress redistribution in a ruptured fiber are analyzed on the basis of certain assumptions .
The movement of a ruptured fiber for various stages of shear deformation in the matrix and for a laminated section is described by differential equations in partial derivatives, the solution of which can be obtained by numerical methods.
Analysis of stress redistribution in a ruptured fiber made it possible to expose, together with unloading waves, reloading waves, which pass over a significant length of fiber and may give rise to its subsequent rupture (breaks).
Consideration of the dynamics of the rupture process made it possible to define more precisely the stress region in which the rupture of a fiber will lead to delamination, and to estimate the magnitude of the delaminated segment and the distance at which the ends of the ruptured fiber are separated.
Delamination of a ruptured fiber from the matrix gives rise to a marked increase in the ineffective length of the fiber with high percentages of fiber by volume.
KeywordsDifferential Equation Partial Derivative Shear Deformation Dynamic Effect Composition Material
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