| 平面状态下的力磁关系及实验分析 |
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| 引用本文： | 常福清,刘东旭,刘峰.平面状态下的力磁关系及实验分析[J].燕山大学学报,2009,33(4):352-356. |
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| 作者姓名： | 常福清 刘东旭 刘峰 |
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| 作者单位： | 燕山大学,建筑工程与力学学院,河北,秦皇岛,066004 |
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| 摘 要： | 从磁性、弹性基本理论出发,根据最小能原理推导出应力张量磁化率关系表达式,提出张量磁化率Mohr圆概念,得出主磁化率表达式以及主磁化率方向夹角,进一步得出应力σ-磁化率△χnσ变化量的关系表达式.设计出磁化率检测装置,测量了受单向应力状态下的机械钢板不同取向上的磁化率.实验结果表明理论值与实验值符合的很好.从而为改善磁测技术提供了理论依据和潜在方法.
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| 关 键 词： | 磁记忆 张量磁化率 Mhor圆 最小能原理 |
Effect of plane stresses on magnetic properties and its experimental analysis |
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| CHANG Fu-qing,LIU Dong-xu,LIU Feng.Effect of plane stresses on magnetic properties and its experimental analysis[J].Journal of Yanshan University,2009,33(4):352-356. |
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| Authors: | CHANG Fu-qing LIU Dong-xu LIU Feng |
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| Institution: | College of Architecture Engineering and Mechanics;Yanshan University;Qinhuangdao;Hebei 066004;China |
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| Abstract: | According to magnetic and elastic basic theory,stress-tensor-susceptibility expression was derived by using minimum energy principle,conception of tensor-susceptibility-Mohr-circle as well as principal susceptibility and principal susceptibility angle were put forwarded,variation relationship of stress and susceptibility change on arbitrary direction was further studied on this basis. Susceptibilities of a slab steel for engineering mechanism of different orientation under uniaxial stress were measured by s... |
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| Keywords: | magnetic memory tensor susceptibility Mohr circle minimum energy principle |
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