Sentence examples for material imperfection from inspiring English sources

Increasing values of material imperfection variances and the rising excitation frequency can lead to a critical state when the length of the propagating wave is comparable with the correlation length of imperfections.

Such imperfections include initial shell-wall geometric, thickness and material imperfections and non-uniform applied end-loads.

A procedure which aims to improve the stochastic modelling of thickness and material imperfections in imperfection sensitive composite cylindrical shells is proposed.

In this manuscript, evolutionary spectra are used to derive random fields of surface and material imperfections of cylindrical shells.

Material imperfections embedded in the complex microstructures are responsible for this remarkable reduction across multiple length scales.

Imperfections due to the manufacturing process are taken into account including material imperfections (elastic modulus variability) and geometrical defects (thickness variability).

The developed model was also used to investigate the effects of initial material imperfections such as inclusions and elastic modulus inhomogeneity on the fatigue lives.

In this paper the influence of material imperfections, in the form of small delamination damage, thickness variations and boundary conditions on the fracture behavior of singly and multiply delaminated plates subject to quasi-static out of plane loading is investigated.

Failure in the components may be caused by any of the following factors or combinations of factors: (1) material imperfections, (2) manufacturing defects, (3) poor heat-treatment process, (4) design errors, (5) unsuitable production technique, and (6) overloading and other service abuse.

In this way, the states of strain, stress and yield stress are monitored explicitly during each step of the analysis, the arbitrary cross-sectional shape, various stress strain relationships for concrete and steel and the effect of material imperfections such as residual stresses are accurately included in the analysis.

Material imperfections are incorporated in the FE model.