Interpolation rule for estimating the greatest stress in a structure subject to creep
Annotation
Several widely used in Food technologies simple structures made of material for which the creep strain rate is proportional to the nth power of stress are studied with a view to determining the way in which the greatest stress in the structure varies with the exponent n when the geometry of the structure and the load carried by the structure remain unchanged. From a study of the results a simple empirical linear rule for interpolating for greatest stress between the specially simple cases n=1 and n→∞ (which correspond to exact analogues of linear elastic and perfectly plastic material respectively) is devised. The rule was verified on the base K-method
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