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

Table 4

Energy release rate with considering the fluid osmotic pressure.

Load step	52	53	54	56	58	63	64	66	68	70	72	74
()/ MPa	12.2316	12.4566	12.5127	12.5691	12.6744	13.5249	13.6434	13.7256	13.7511	13.7583	13.7643	13.7703
/mm	0	0	0.2391	0.2399	0.2438	0.4784	0.7233	1.2099	1.699	2.1911	2.6875	3.1892
/(N/mm)	59.0803	62.7624	67.2981	68.2286	69.7544	72.9767	75.1567	121.0424	206.7983	355.1773	596.5538	971.9424