Method and system for evaluating damage tolerance of high-temperature pipeline under action of creep fatigue load
The invention relates to a method and a system for evaluating damage tolerance of a high-temperature pipeline under the action of creep fatigue load, and relates to the field of damage tolerance, the method comprises the following steps: establishing a pipeline finite element model containing cracks...
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| creator | TAN JIANPING ZHANG DINGWU ZHANG GUODONG LU RONGSHENG SHI JUNMIAO ZHANG XIANCHENG ZHAO YUCHEN SHU GUOGANG TANG MINJIN YANG JIE TU SHANDONG XIA XIANXI |
| description | The invention relates to a method and a system for evaluating damage tolerance of a high-temperature pipeline under the action of creep fatigue load, and relates to the field of damage tolerance, the method comprises the following steps: establishing a pipeline finite element model containing cracks with different sizes, and carrying out numerical calculation to obtain a stress intensity factor of a crack tip in the pipeline; acquiring a crack propagation model and a pipeline crack size; determining the creep fatigue crack growth rate according to the pipeline crack size; calculating the crack propagation life according to the stress intensity factor and the creep fatigue crack propagation rate; determining fracture toughness according to the pipeline crack size; calculating the residual strength of the pipeline according to the fracture toughness and the pipeline crack size; and according to the crack propagation life and the residual strength, constructing a damage tolerance evaluation diagram of the high-t |
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acquiring a crack propagation model and a pipeline crack size; determining the creep fatigue crack growth rate according to the pipeline crack size; calculating the crack propagation life according to the stress intensity factor and the creep fatigue crack propagation rate; determining fracture toughness according to the pipeline crack size; calculating the residual strength of the pipeline according to the fracture toughness and the pipeline crack size; and according to the crack propagation life and the residual strength, constructing a damage tolerance evaluation diagram of the high-t</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNzEsKwjAUheFOHIi6h-sCCtYqdCpFcaIj5-WSnKSBNIl5CO7eCi7A0YGfj7Osnjfk0UtiJym9U8ZEykfCi23hbJwmyRNrUPYWkZ0AeUWj0WM92zCnXCIomABrHKg4iUgssvHuK0UEAqn5SheQ9SzX1UKxTdj8dlVtL-dHf60R_IAUWMAhD_29aY67Q9e1-1P7j_kAozdDrw</recordid><startdate>20220913</startdate><enddate>20220913</enddate><creator>TAN JIANPING</creator><creator>ZHANG DINGWU</creator><creator>ZHANG GUODONG</creator><creator>LU RONGSHENG</creator><creator>SHI JUNMIAO</creator><creator>ZHANG XIANCHENG</creator><creator>ZHAO YUCHEN</creator><creator>SHU GUOGANG</creator><creator>TANG MINJIN</creator><creator>YANG JIE</creator><creator>TU SHANDONG</creator><creator>XIA XIANXI</creator><scope>EVB</scope></search><sort><creationdate>20220913</creationdate><title>Method and system for evaluating damage tolerance of high-temperature pipeline under action of creep fatigue load</title><author>TAN JIANPING ; 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acquiring a crack propagation model and a pipeline crack size; determining the creep fatigue crack growth rate according to the pipeline crack size; calculating the crack propagation life according to the stress intensity factor and the creep fatigue crack propagation rate; determining fracture toughness according to the pipeline crack size; calculating the residual strength of the pipeline according to the fracture toughness and the pipeline crack size; and according to the crack propagation life and the residual strength, constructing a damage tolerance evaluation diagram of the high-t</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Method and system for evaluating damage tolerance of high-temperature pipeline under action of creep fatigue load |
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