A new corrosion growth model (i.e. the modified logistic model )was developed through the modification of two existing growth models(i.e., the logistic growth model and the confined exponential growth model). In SAS system ,the corrosion growth models were checked comparing with the depth data obtained from xx airplane wings to show whether the models is appropriate to show the behavior of corrosion growth . Weighted least square method (WLS) was used to obtain the parameters of the models .Then the three models were compared in terms of weighted mean square errors (WMSE) .The result shows that the modified logistic model provide the best fit of the corrosion growth data.
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邓永先 吕国志 张有宏 石伯妹. 对结构腐蚀增长模型的探讨[J]. 科学技术与工程, 2007, (19): 4956-4960. DENG Yong-xian, L Guo-zhi, ZHANG You-hong, et al. Discussion of Structure Corrosion Growth[J]. Science Technology and Engineering,2007,(19):4956-4960.