Research Article

A Fluid-Solid-Magnetic Coupling Algorithm of Internal Crack Growth in the Weld of Oil and Gas Pipelines

Table 6

values of growth ratios at the same pressure.

/ MPa12.803412.900112.996813.093513.190213.286913.383613.480313.577013.673713.7703

/mm0.23790.23850.23930.24050.24230.24510.24920.25530.26460.27850.2994

m0.25920.27910.30230.32960.36250.40260.45260.51690.60240.69083.1892

1.11.21.31.41.51.61.82.02.32.510.7