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首页> 外文会议>The 2001 ASME International Mechanical Engineering Congress and Exposition, 2001, Nov 11-16, 2001, New York, New York >DYNAMICS OF COMPOSITE STRUCTURES WITH MULTIPLE DELAMINATIONS
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DYNAMICS OF COMPOSITE STRUCTURES WITH MULTIPLE DELAMINATIONS

机译：具有多个分层的复合结构的动力学

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摘要

The objective of this paper is to explore if changes in the structural dynamic response and structural dynamic characteristics can be used to identify the existence, location and magnitude of defects like a delamination or an impact damage, at the macroscale level, before they can grow to their critical sizes. Specifically dynamic response of composite structures, with delamination defects, is discussed in this paper. The experimental analysis is performed to capture the effects of nonlinearities on the dynamic response of a beam with multiple delaminations. To describe the opening and closing mode of the delaminated segments of the beam during the vibration, an analysis is performed by using a model with piecewise spring. Then, the nonlinear dynamic response is calculated.
机译：本文的目的是探索结构动力学响应和结构动力学特性的变化是否可以用于在宏观尺度上识别缺陷的存在，位置和大小，例如分层或冲击损伤，然后才能增长到它们的关键尺寸。本文详细讨论了具有分层缺陷的复合结构的动力响应。进行实验分析以捕获非线性对具有多个分层的梁的动力响应的影响。为了描述振动过程中梁的分层段的打开和关闭方式，使用分段弹簧模型进行了分析。然后，计算非线性动态响应。

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