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Dr J. W. Dougill (F) (Director of Engineering, IStructE) We have these distributions of normal contact stress across the width of the footing, and you say that ‘of course, it is zero at the edge’. I am a little puzzled about this, although I may have misunderstood. Certainly, if the behaviour were not elastic, there is not any reason why it should be zero at the edge. Indeed, if you had a singularity you would need it to be zero at the edge. Is there some other overriding reason why this contact stress should be zero?
Verulam - our beginnings Our columns hme been a feature in The Structural Engineer for a sufficient period for most readers to have no recollection of the original inspiration which put us here. Since some 20 years have now passed since our first stirrings in the womb of the Institution’s Literature Committee, it may be of interest to recall, for readers’ benefit, how in fact we ‘came to be’. Verulam