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EXPERIMENTAL TECHNIQUES IN THE TESTING OF THIN-WALLED STRUCTURAL MEMBERS

机译:薄壁构件测试中的实验技术

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The paper summarises the principles underpinning good experimentation of thin-walled structural members. The key features include the selection of appropriate gain control strategy and control loop variable, as well as careful end bearing design and techniques for measuring buckling displacements at advanced stages of loading. The paper focuses on the testing of thin-walled columns as this type of test presents one of the most demanding problems in terms of securing a stable control loop for capturing post-ultimate response. The principles are described with reference to the test rigs developed at the University of Sydney over the past 15 years.
机译:本文总结了薄壁结构构件良好试验基础的原理。主要功能包括选择合适的增益控制策略和控制回路变量,以及仔细的端部轴承设计和用于在载荷的晚期阶段测量屈曲位移的技术。本文着重于薄壁色谱柱的测试,因为这种类型的测试提出了最严峻的问题之一,即如何确保获得最终响应后的稳定控制环。参照过去15年来在悉尼大学开发的测试设备对原理进行了描述。

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