| 吝曼卿,郭学彬,肖正学*,陈星明,张继春,高航.弹性波CT在混凝土靶体冲击损伤实验中的应用[J].实验力学,2010,25(2):136~142 |
| 弹性波CT在混凝土靶体冲击损伤实验中的应用 |
| Application of Elastic Wave CT to Impacting Damage Experiment of Concrete Targets |
| 投稿时间：2009-10-13 修订日期：2010-01-15 |
| DOI： |
| 中文关键词: 弹性波 CT 冲击损伤 声波测试 |
| 英文关键词:elastic wave computer tomography (CT) impact damage ultrasonic testing |
| 基金项目:西南科技大学国防预研项目（07zx6101）; 西南科技大学创新基金项目（SWUST-CX09014） |
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| 中文摘要: |
| 介绍了弹性波CT技术的原理、方法和优点。在弹丸冲击混凝土靶体实验中，应用弹性波CT技术对冲击前后的混凝土靶体进行CT成像分析，并根据成像剖面上冲击前后对应位置的速度对比情况，分析其在弹丸冲击作用下的宏观破坏和内部损伤。CT成像分析结论与实际观测结果有较好的一致性，这表明利用弹性波CT成像能很好地反映混凝土靶体冲击前的结构特征、冲击后的破坏状况和损伤情况。 |
| 英文摘要: |
| Principle, method and advantage of the elastic wave CT technology are introduced in this paper. In impacting experiment of energetic projectile into a concrete target, the application of elastic wave CT technology to analyses the CT tomography taken before and after the impacting experiment of an energetic projectile into a concrete target. Based on the comparison of the elastic wave speed of corresponding positions on the imaging profile corresponding positions taken before and after impact, the macro broken status and inside damage of the concrete target under impact of energetic projectile was analyzed. The conclusion of CT tomography has a good consistency with the actual observation results, which indicates that the elastic wave CT can reflect perfectly the structure characteristics of a concrete target before impact, broken and damage status after impact. |
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