Basic theory and experimental techniques of the strain-gradient method

Pindera, J. T.; Hecker, F. W.

doi:10.1007/bf02318098

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1989

1998

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Cited by 22 publications

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Three‐dimensional stress analysis of composite structures using isodyne techniques

Pindera

1989

Polymer Composites

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It is known that the stresses in lamination planes of composite structures are pronouncedly three‐dimensional, and that criticality of the lamination defects is often very high. It is also known that the classical methods of photoelastic stress analysis are often not reliable when stress states are three‐dimensional, with the exception of the gamma‐ray stress‐freezing method. The paper presents analytical and empirical evidence that the recently developed “isodyne” techniques allow reliable determination of the 3‐D stresses existing in components of real composite structures and in lamination planes.

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