A hollow steel shaft is to be replaced by an aluminium shaft of the same external diameter.
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A hollow steel shaft is to be replaced by an aluminium shaft of the same external diameter. The material of steel shaft is 25% stronger than aluminium shaft in shear.
Calculate the diameter ratios. Also find the percentage saving in weight assuming that steel is 3 times heavier than aluminum.
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Somshukla Chakraborty
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