A general method for defining the number of cycles of repeated loading

In geotechnical engineering designs and safety checks, the number of cycles of repeated loading N is frequently used as a parameter for calculating th e response of soil structures under the repeated loading. However, there ap pears to be a lack of rational methods for calculating N for repeated loadi ngs along general stress paths. A new method for defining N is proposed in this paper, based on the assumption that a yield surface may be identified for the material. It is demonstrated that the proposed method provides a ra tional and useful means for engineering calculation of soil deformations un der repeated loadings. Copyright (C) 2001 John Wiley & Sons, Ltd.