张永弘

,陈抡元

,黄兆芝

摘要(Abstract)：

一、前言在一些压力容器中(例如伍德式密封的)在各种因素的影响下,常在内壁环向出现多个纵向半椭形裂缝,这会给安全生产带来严重威胁。对于这样的裂缝组应力强度因子(简称SIF)的变化规律,无论是理论上还是实验上在国内外都没有见到已公布的研究成果。为了探索这种裂缝组SIF的变化规律我们共作了三批光弹性实验,模型尺寸如表1、表2、表3所示。

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作者(Author):张永弘

,陈抡元

,黄兆芝

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参考文献(References)：

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• [13] 用光弹性应力冻结法测表面裂缝应力强度因子,张永弘、陈抡元、黄兆芝,大庆石油学院学报84． 1．