Creep life evaluation of aluminum conductor composite core utilized in high voltage electric transmission |
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| Institution: | 1. Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, Jiangsu, 212013, China;2. Beijing Institute of Aeronautical Materials, Beijing, 100095, China;1. BAM Federal Institute for Materials Research and Testing, Unter den Eichen 87, 12005 Berlin, Germany;2. University of Applied Sciences Berlin, Luxemburger Str.10, 13353 Berlin, Germany;1. Center for Advanced Materials, Qatar University, Doha 2713, Qatar;2. Materials Science and Technology Program, College of Arts and Sciences, Qatar University, Doha 2713, Qatar;3. Qatar Petrochemical Company (QAPCO), Doha 756, Qatar;1. Center of Advanced Elastomer Materials, Beijing University of Chemical Technology, Beijing 100029, PR China;2. Engineering Research Center of Elastomer Materials Energy Conservation and Resources, Ministry of Education, Beijing 100029, PR China;3. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, PR China;4. Analysis and Test Center, Beijing University of Chemical Technology, Beijing 100029, PR China;1. Friedrich-Alexander-University Erlangen-Nürnberg, Institute of Polymer Technology, Am Weichselgarten 9, D-91058 Erlangen, Germany;2. Central South University, State Key Laboratory of High Performance and Complex Manufacturing, Lushan South Road 932, 410083 Changsha, China |
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| Abstract: | The creep life of aluminum conductor composite core (ACCC) utilized in high voltage electric transmission was investigated using an experimental method based on the equivalence relationship. First, the time-temperature-stress equivalence relationship was developed using the time-temperature and the time-stress equivalence relationships. Then, tensile creep experiments were conducted under different temperatures and different stress levels to obtain the strain-time curves of the ACCC. Finally, the creep strain master curve was obtained using the experimental data based on the time-temperature-stress equivalence relationship, allowing prediction of ACCC creep life. The results will play an important role in evaluation of the long-term characteristics of the ACCC for engineering applications. |
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| Keywords: | Aluminum conductor composite core (ACCC) Creep life evaluation Time-temperature-stress equivalence relationship Hybrid composite Creep strain master curve |
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