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在EPRI全塑性J积分表达式的基础上,建立了小裂纹问题全塑性J积分近似表达式,在此基础上并编制出压力容器小裂纹缺陷结构的安全评定软件。
On the basis of EPRI plastic J integral expression, an approximate expression of all-plastic J-integral of small crack problem is established. Based on this, a safety assessment software of small cracked defect structure of pressure vessel is developed.