激光弱冲击波在三维编织复合材料复合材料中的传播
Eduardo Cuenca1,2,3, Mathieu Ducousso1,3, Nicolas Cuvillier1
1Safran Tech, rue des Jeunes Bois, 78114 Magny les Hameaux, France.
The Journal of the Acoustical Society of America
|April 17, 2025
概括
在碳纤维复合材料中研究激光驱动的冲击波揭示了复杂的传播模式. 材料异质性和异质性显著影响冲击波动力学,经实验数据验证.
科学领域:
- 材料科学 材料科学 材料科学
- 固体力学 固体力学是什么
- 激光物理 激光物理
背景情况:
- 复合材料在航空航天工程中至关重要.
- 了解这些材料中的冲击波传播对于结构完整性至关重要.
- 激光诱导的冲击提供了一种探测材料反应的方法.
研究的目的:
- 为了研究激光驱动的冲击波在3D碳纤维复合材料中的传播.
- 模拟由材料异质性和异质性影响的复杂波动力学.
- 将模拟结果与实验测量结果进行比较.
主要方法:
- 光学显微镜用于材料特性和局部弹性特性评估.
- 非线性源模型与有限差异时间域 (FDTD) 结合用于冲击模拟.
- 适应Lebedev的方案,以考虑材料的异质性.
- 用激光照明和数据采集进行实验活动.
主要成果:
- 激光切除产生等离子体,诱导GPa级冲击波.
- 材料异质性和异质性导致复杂的冲击传播.
- 在考虑材料特性时,模拟准确地捕捉波动力学.
- 实验数据显示与模型预测有很好的一致性.
结论:
- 这项研究成功地模拟了激光驱动的冲击波在异性质复合材料中的传播.
- 材料特征是准确冲击波模拟的关键.
- 实验验证证证实了该模型在航空航天应用中的预测能力.
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