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在钢筋混凝土板上对非爆炸性模拟爆炸负荷进行实验和数值研究
Zhixiang Xiong1,2, Wei Wang3, Guocai Yu1,2
1Key Laboratory of Advanced Ship Materials and Mechanics, Harbin Engineering University, Harbin 150001, China.
Materials (Basel, Switzerland)
|June 28, 2023
概括
一个新的非爆炸性爆炸模拟器安全且具有成本效益地模拟了钢筋混凝土 (RC) 板上的爆炸负载. 金字塔式枕和撞击速度显著影响爆炸模拟结果.
科学领域:
- 结构工程 结构工程
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
背景情况:
- 传统的爆炸装载模拟通常依赖于危险和昂贵的爆炸方法.
- 精确模拟钢筋混凝土 (RC) 结构上的冲压负荷对于安全和设计至关重要.
- 开发更安全,更具成本效益的爆炸模拟替代品是一个重要的研究需求.
研究的目的:
- 引入和验证一种新的非爆炸性方法,用于模拟RC板块上的高压负荷.
- 为了评估一个新的爆炸模拟器在复制爆炸引起的压力波方面的有效性.
- 调查各种参数对冲击负载特性的影响.
主要方法:
- 使用新开发的爆炸模拟器进行实验测试,将冲击负荷应用于RC板块上.
- 数字模拟来模拟爆炸负载现象,并与实验数据进行比较.
- 参数研究分析了枕形状 (金字塔形与平面形),冲击速度和厚度的影响.
主要成果:
- 非爆炸性方法成功地产生了压力波,在峰值压力和持续时间方面与实际爆炸相似.
- 数字模拟显示了与实验结果的良好一致.
- 金字塔式被证明比平面更有效作为冲击缓冲.
- 撞击速度对峰值压力和冲动有着最显著的影响.
- 增加金字塔式的顶部厚度对减负的影响比增加底部厚度更大.
结论:
- 拟议的非爆炸性爆炸模拟方法是一种安全,成本效益和可行的替代爆炸技术.
- 该研究为优化冲击缓冲设计和了解RC板块的爆炸负荷参数提供了宝贵的见解.
- 这项研究有助于在极端负载条件下推进结构响应分析领域.
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