本文主要研究内容
作者段昊（2019）在《REBCO高温超导带材机械及电磁力作用下层间剥离行为的数值模拟》一文中研究指出：REBCO二代高温超导带材,因其具有较高临界磁场、较高电流密度以及液氮环境下可实现超导态等显著优点,已成为超导科学与技术领域的研究热点,在交通、能源、医疗等现代化高新科学和技术领域中展现出诱人的潜力。然而,作为典型的多层电磁功能复合材料,其层间剥离失效,特别是电磁热多场环境下的力学性能严重影响其超导性能与应用。本文针对REBCO高温超导带材层间剥离力学失效行为,基于双线性内聚力本构关系发展并构建了力-电磁多场下带材剥离有限元模型,开展了横向机械拉伸荷载与电磁力作用下超导带材的应力分布与界面损伤破坏行为模拟,初步揭示了电磁场对超导带材剥离破坏行为的影响。首先,根据已有文献结果对本研究所构建的有限元模型结果进行了验证。结果显示:本文所构建有限元模型结果与已有结果吻合良好,该模型能够较为准确的模拟超导带材的剥离行为。在此基础上,基于有限元模型对超导带材在横向机械拉伸荷载作用下的剥离行为进行了数值模拟研究。结果显示:剥离区域对带材厚度方向的应力分布有显著影响,超导层厚度和铜层厚度变化对带材的等效剥离强度存在一定程度的影响。最后,基于有限元模型对超导带材在电磁力作用下的剥离行为进行了数值模拟研究。结果显示:电磁力大小与方向对带材剥离行为有较为明显的影响,即随着电磁力对带材层间剥离行为贡献的增加,带材等效剥离强度逐步降低,该结果不同于作用在带材表面且与电磁力等效的均布荷载对剥离行为的影响。
Abstract
REBCOer dai gao wen chao dao dai cai ,yin ji ju you jiao gao lin jie ci chang 、jiao gao dian liu mi du yi ji ye dan huan jing xia ke shi xian chao dao tai deng xian zhe you dian ,yi cheng wei chao dao ke xue yu ji shu ling yu de yan jiu re dian ,zai jiao tong 、neng yuan 、yi liao deng xian dai hua gao xin ke xue he ji shu ling yu zhong zhan xian chu you ren de qian li 。ran er ,zuo wei dian xing de duo ceng dian ci gong neng fu ge cai liao ,ji ceng jian bao li shi xiao ,te bie shi dian ci re duo chang huan jing xia de li xue xing neng yan chong ying xiang ji chao dao xing neng yu ying yong 。ben wen zhen dui REBCOgao wen chao dao dai cai ceng jian bao li li xue shi xiao hang wei ,ji yu shuang xian xing nei ju li ben gou guan ji fa zhan bing gou jian le li -dian ci duo chang xia dai cai bao li you xian yuan mo xing ,kai zhan le heng xiang ji xie la shen he zai yu dian ci li zuo yong xia chao dao dai cai de ying li fen bu yu jie mian sun shang po huai hang wei mo ni ,chu bu jie shi le dian ci chang dui chao dao dai cai bao li po huai hang wei de ying xiang 。shou xian ,gen ju yi you wen suo jie guo dui ben yan jiu suo gou jian de you xian yuan mo xing jie guo jin hang le yan zheng 。jie guo xian shi :ben wen suo gou jian you xian yuan mo xing jie guo yu yi you jie guo wen ge liang hao ,gai mo xing neng gou jiao wei zhun que de mo ni chao dao dai cai de bao li hang wei 。zai ci ji chu shang ,ji yu you xian yuan mo xing dui chao dao dai cai zai heng xiang ji xie la shen he zai zuo yong xia de bao li hang wei jin hang le shu zhi mo ni yan jiu 。jie guo xian shi :bao li ou yu dui dai cai hou du fang xiang de ying li fen bu you xian zhe ying xiang ,chao dao ceng hou du he tong ceng hou du bian hua dui dai cai de deng xiao bao li jiang du cun zai yi ding cheng du de ying xiang 。zui hou ,ji yu you xian yuan mo xing dui chao dao dai cai zai dian ci li zuo yong xia de bao li hang wei jin hang le shu zhi mo ni yan jiu 。jie guo xian shi :dian ci li da xiao yu fang xiang dui dai cai bao li hang wei you jiao wei ming xian de ying xiang ,ji sui zhao dian ci li dui dai cai ceng jian bao li hang wei gong suo de zeng jia ,dai cai deng xiao bao li jiang du zhu bu jiang di ,gai jie guo bu tong yu zuo yong zai dai cai biao mian ju yu dian ci li deng xiao de jun bu he zai dui bao li hang wei de ying xiang 。
论文参考文献
论文详细介绍
论文作者分别是来自兰州大学的段昊，发表于刊物兰州大学2019-07-29论文，是一篇关于高温超导带材论文,多层复合结构论文,内聚力理论论文,机械荷载论文,电磁力论文,剥离论文,兰州大学2019-07-29论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自兰州大学2019-07-29论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：高温超导带材论文; 多层复合结构论文; 内聚力理论论文; 机械荷载论文; 电磁力论文; 剥离论文; 兰州大学2019-07-29论文;