Research on the Critical Buckling Strain Criterion for Pipelines Available to Purchase

The local buckling of pipelines is regarded as a kind of failure. The critical buckling strain is an important parameter in strain-based design of pipelines. According to the grey system theory, the factors affecting the critical buckling strain were analyzed and the correlation between these factors and the critical buckling strain was quantitatively measured based on test data. According to the dimension analysis theory, the factors affecting the critical buckling strain were analyzed and the correlation between the factors and a new critical buckling strain equation was proposed based on test data. And some advice was provided for the improvement of critical buckling strain equations. Comparing the results with data from full scale tests, these as-obtained equations could provide a higher precision.