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Identification and Monitoring of Structural Parameters as Damage Indicators for Plates in the Post-Buckling Regime

机译:屈曲后板中结构参数的识别和监测作为钢板损伤指标

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Structural Health Control (SHC) is a holistic and comprehensive process thatintegrates structural analysis, structural health monitoring (SHM), damage assessment,damage prognosis and condition based maintenance (CBM). Main idea of this conceptis to use the information of a structural analysis to identify structural parameters asdamage indicators. By means of the structural parameters the sensor layout of theSHM system is designed and optimized, which is called Smart SHM. By means ofnumerical simulations the effect of damages on the post-buckling behavior of a thinplate under compressive loading and its failure modes is analyzed. Appropriatestructural parameters are identified to display the post-buckling behavior and thedamage effects. These structural parameters are monitored with strain gauges todiagnose damage. The corresponding sensor layout is designed and optimized tomeasure the structural parameters in a robust and reliable way. This procedureconstitutes the Smart SHM system. The subsequent evaluation of the structuralparameters, which are monitored during service, diagnoses the damage. Thefunctionality of the Smart SHM system in the context of the SHC concept is verifiedin tests of a thin aluminum plate.
机译:结构健康控制(SHC)是一个全面而全面的过程, 整合结构分析,结构健康监测(SHM),损坏评估, 损害预后和基于条件的维护(CBM)。这个概念的主要思想 是使用结构分析的信息将结构参数识别为 损坏指标。借助结构参数,传感器的布局 设计并优化了SHM系统,称为Smart SHM。通过 数值模拟损伤对薄板屈曲后行为的影响 分析了受压荷载作用下的金属板及其破坏模式。合适的 确定结构参数以显示屈曲后的行为和 破坏效果。这些结构参数由应变仪监控,以 诊断损坏。设计和优化了相应的传感器布局,以 以可靠可靠的方式测量结构参数。这个程序 构成Smart SHM系统。后续结构评估 维修期间监控的参数可诊断损坏。这 验证了SHC概念中Smart SHM系统的功能 在薄铝板的测试中。

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