In a previous paper (I)‡ an upper bound on the deformation of a creeping structure subject to constant load was derived which remained valid until rupture occurred at the most highly strained point of the body. Here we show that this bound may be used to evaluate a lower bound to the time of initial rupture for a certain class of structures. The method suggests that for many structures simple design calculation of an approximate nature should be possible. Values of the rupture life, obtained using the prediction method, are shown to compare well with the results of experiments carried out on a number of structures.
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