Abstract
By means of the theory of universal unfolding, the influence of multiimperfections upon the critical load of structure in engineering is analysed in this paper. For the pitchfork problem, a lower bound of increments of the critical loads caused by imperfections of the structures is given. A simple and available numerical method for computing the lower bound is described.
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Communicated by Chien Weizang
Foundation item: the National Nature Science Foundation of China (19371039)
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Zhengyou, Z., Yuhao, C. The influence of imperfections upon the critical load of structures. Appl Math Mech 20, 1108–1115 (1999). https://doi.org/10.1007/BF02460327
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DOI: https://doi.org/10.1007/BF02460327