在声弹性和复杂波导中建模引导波:从SAFE理论到开源工具
Menglong Liu1, Wenyan Zhang1, Xiao Chen1
1School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, PR China.
Ultrasonics
|September 3, 2023
概括
一个新的开源工具,SAFEDC,计算了指导波 (GW) 在复杂结构中的分散. 该工具通过提供详细的波传播见解来增强材料特性和结构健康监测.
科学领域:
- 固体力学 固体力学是什么
- 材料科学 材料科学 材料科学
- 计算工程 计算工程 计算工程
背景情况:
- 导波 (GW) 技术对于材料特性,损坏检测和结构健康监测至关重要.
- 深入了解GW行为对于推进这些诊断方法至关重要.
- 现有的方法往往缺乏灵活性来处理复杂的波导体几何形状和材料特性.
研究的目的:
- 开发一个开源的分散计算器用于指导波 (GWs) 在声弹性和复杂的波导.
- 为分析在不同条件下的同otropic 和 anisotropic 材料中的 GW 传播提供一个全面的工具.
- 促进GW在研究和工程应用中的更深入理解和利用.
主要方法:
- 采用半分析有限元 (SAFE) 方法作为基本方法.
- 采用1D-Gauss-Lobatto-Legendre SAFE (1D-GLL-SAFE) 的波导板,优化了波导的精度和效率.
- 应用的2D-Gauss SAFE具有一般波导的三角网格,提高了网格的便利性.
- 纳入了不同的声弹性理论,以在机械负荷下建模GW.
主要成果:
- 开发了SAFEDC (基于SAFE的分散计算器),这是一个用于GW分散分析的开源工具.
- SAFEDC准确地计算了预应力同源波导,一般横截面和复杂层材中的GW.
- 该工具提供了全面的GW功能,包括阶段/组速度,波数,位移/应力/应变结构和传播动画.
结论:
- 开发的SAFEDC工具为分析多样化和复杂结构中的引导波提供了多功能和高效的解决方案.
- 它有助于研究人员和工程师理解GW的行为,用于材料表征和结构健康监测的应用.
- 由于SAFEDC的开源性质,促进了该领域的更广泛采用和进一步发展.
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