The critical loads for a layered material compressed by a surface load are determined numerically using the three-dimensional linearized theory of stability and the piecewise-homogeneous material model. Symmetry conditions on the lateral sides of a layered composite sample are assumed. It is shown that internal loss of stability in the layered composite is microbuckling near the loaded surface manifested as end crushing. The buckling modes decay with distance from the end. The effect of the inhomogeneity of the initial state induced by the load on the buckling modes is studied. The inhomogeneity of the initial state has a strong effect on the amplitudes of the buckling modes and the area of their localization
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Translated from Prikladnaya Mekhanika, Vol. 53, No. 2, pp. 49–58, March–April, 2017.
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Bystrov, V.M., Dekret, V.A. & Zelenskii, V.S. Loss of Stability in a Composite Laminate Compressed by a Surface Load. Int Appl Mech 53, 156–163 (2017). https://doi.org/10.1007/s10778-017-0801-y
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DOI: https://doi.org/10.1007/s10778-017-0801-y