Numerical modeling of laser-induced shock experiments for the development of the adhesion test for bonded composite materials
Numerical modeling of laser-induced shock experiments for the development of the adhesion test for bonded composite materials
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DOI：
10.1016/j.compstruct.2016.05.032
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发表时间：
2016-09-15
影响因子：
6.3
通讯作者：
Dominguez, Nicolas
中科院分区：
文献类型：
--
作者：
Ecault, Romain;Touchard, Fabienne;Dominguez, Nicolas
本文对复合材料的激光冲击实验进行了模拟。重点研究了一种可靠的复合材料激光冲击波粘接试验数值模型的建立。阐述了激光冲击实验的技术原理和实验步骤。然后，进行了数值研究。给出了一种设定模型输入参数的标定方法，并对模型的选择进行了详细说明。根据实验结果确定了动态材料参数，并通过对各种碳纤维增强塑料（CFRP）材料（整体和粘合）的完整激光冲击运动进行了验证。最后讨论了粘结复合材料的数值计算结果。它们能够理解波传播过程中复合材料组件内的应力分布。这是开发可靠且可控的激光冲击粘附试验的关键一步。(C) 2016 Elsevier Ltd.版权所有。
In this work, laser shock experiments on composite material are modeled. Focus is made on the development of a reliable numerical model to be used for the laser shock wave adhesion test of bonded composites. Technique principle is explained as well as the laser shock experiment procedure. Then, the numerical investigations are presented. A calibration method is given to set the model input parameters, and the modeling choices are detailed. Dynamic material parameters are identified thanks to experimental results, and validated through a complete campaign of laser shocks on various carbon fiber reinforced plastic (CFRP) materials (monolithic and bonded). Finally, numerical results for bonded composites are discussed. They enable to understand the stress distribution within the composite assembly during the wave propagation. This is a key step toward the development of a reliable and controlled laser shock adhesion test. (C) 2016 Elsevier Ltd. All rights reserved.