A panel comprising a thin, square, flat plate of clad copper-aluminium alloy to specification B.S.2L.73, bounded by substantial edge members, was subjected to a range of static shear loadings up to a shear-stress ratio of 3·0. The experimentally determined distributions of strains and stresses within the plate reveal the importance of the stresses due to bending resulting from the formation of diagonal shear buckles. Fair agreement between the results of this study and the work of other investigators was obtained. The work presented is part of an investigation into the fatigue-crack propagation behaviour and residual-strength characteristics of flat panels subjected to shear loading, hence an accurate assessment of stress conditions at least along the two diagonals was required. The strains within the plate when subjected to a range of cyclic shear loadings were determined and a relation between cyclic strains and corresponding static strains was obtained. The use of this relation leads to a simple assessment of stress conditions within the plate due to any magnitude of cyclic shear loading.
Assessment of stress conditions for carotenoids accumulation in Chlamydomonas reinhardtii as added-value algal products
