对于钢和热粘合剂之间的模式I解的界面参数值的反向分析
Jun Shi1,2,3, Jian Zhang4, Mingzhen Hu2
1Key Laboratory of Special Equipment Safety and Energy-Saving for State Market Regulation, China Special Equipment Inspection & Research Institute, Beijing 100029, China.
Materials (Basel, Switzerland)
|October 29, 2025
概括
这项研究量化了聚乙烯管道中钢-热粘合剂接口性能,使用双悬臂束测试和有限元分析. 一个交互式程序确定了接口强度和断裂能量,验证了复合材料分析模型.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 复合材料 复合材料 复合材料
背景情况:
- 用绕钢丝 (PSP) 加固的聚乙烯管是先进的复合材料.
- 钢线和热粘合剂之间的接口解接是PSP接头的关键故障模式.
- 界面性能的定量表征对于理解和预防故障至关重要.
研究的目的:
- 为了研究钢铁和热粘合剂之间的界面特性.
- 开发一种可靠的方法来描述PSP连接中的接口性能.
- 用实验和计算方法分析接口属性和故障过程.
主要方法:
- 采用双横梁 (DCB) 试验来评估接口特性.
- 建立了一个具有凝聚性元素的有限元模型来模拟界面行为.
- 开发了一个ABAQUS-Python-MATLAB交互式程序,用于反向优化接口参数.
主要成果:
- 交互式程序通过匹配模拟和实验负载位移曲线,成功确定了接口强度和断裂能量.
- 开发的有限元模型准确地预测了裂尖的传播模式.
- 模拟结果与实验数据有很强的一致性,验证了DCB模型和反向计算方法.
结论:
- 该研究成功地建立了一种有效的方法,用于定量表征钢-热粘合剂接口.
- 经过验证的DCB有限元模型和反向优化技术为分析复合材料接口提供了可靠的方法.
- 该方法为各种材料和结构中的粘合接口的机械行为分析提供了宝贵的指导.
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