Reliability of Daniels Systems with Local Load Sharing Subject to Random Time Dependent Inputs
Daniels systems consist of n parallel brittle fibers and can carry load in damage states m = n, n−1, ..., 1 characterized by m unfailed fibers and n–m failed fibers (Fig. 1). It is assumed that the distribution of the applied load among fibers presents concentrations in a vicinity of failed fibers (local load sharing rule) consistent with the stress distribution observed in composite and fiber-reinforced materials (9). Most studies on the reliability of Daniels systems involve elementary loading conditions, e.g, time-invariant and monotonic loads (8,10). Dynamic loads began to be considered recently for Daniels systems with the equal load sharing rule (1,2,3,4).
KeywordsFatigue Covariance Brittle Resis Equol
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