关于数值模拟和固定线缆的机械性能研究,该线缆具有C形管,经过剪切
Renliang Shan1, Shengchao Xiao2, Yongzhen Li1
1China University of Mining and Technology (Beijing), Beijing, 100080, China.
Scientific reports
|March 29, 2024
概括
带有C形管的缆在剪切应力下显示出更好的机械性能. 这些管可以减少应力度,并将故障模式转移到拉力破裂,从而提高结构完整性.
科学领域:
- 土木工程 土木工程是指土木工程.
- 结构力学 结构力学
- 材料科学 材料科学 材料科学
背景情况:
- 线缆是关键的结构部件.
- 了解它们在剪切压力下的行为对于安全至关重要.
- 现有的线可能会受到应力度问题的影响.
研究的目的:
- 为了在剪切条件下比较带有C形管和没有C形管的绳的机械性能.
- 研究C型管对应力分布和故障模式的影响.
- 开发一个对线缆行为的预测模型.
主要方法:
- 对两种类型的线进行了大型室内双面剪切测试.
- 在测试期间,应用了不同的预拉力负载.
- 使用ABAQUS软件进行有限元分析,模拟了线缆,C型管和混凝土之间的相互作用.
主要成果:
- C型管改变了应力分布,减轻了线缆中的应力度.
- 故障模式从组合拉力切割转变为主要使用C形管的拉力断裂.
- 阿巴克斯模型准确地模拟了压力演变和切割位移下的混凝土损伤.
结论:
- C 形管可以提高线缆的剪切性能.
- 修改后的设计改善了应力分布,并促进了更安全的故障模式.
- 通过结合实验和模拟数据,建立了联合负载下的产量状态的关系方程.
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