复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (12): 79-87.DOI: 10.19936/j.cnki.2096-8000.20251228.011

• 设计与工艺 • 上一篇    下一篇

钛合金/三元乙丙橡胶接头粘接界面性能参数的测试与反演

陈彩月1, 丁安心1*, 张宇2, 黄泽勇2, 杨帆3, 赵飞3, 周睿3, 唐自佳3   

  1. 1.武汉理工大学 材料科学与工程学院,武汉 430070;
    2.湖北三江航天江北机械工程有限公司,孝感 432000;
    3.湖北航天技术研究院总体设计所 航天动力先进技术湖北省重点实验室,武汉 430040
  • 收稿日期:2024-10-11 出版日期:2026-02-06 发布日期:2026-02-06
  • 通讯作者: 丁安心(1987—),男,博士,教授,硕士生导师,研究方向为复合材料制备与设计,axding@whut.edu.cn。
  • 作者简介:陈彩月(2000—),女,硕士研究生,研究方向为复合材料界面力学性能参数表征。
  • 基金资助:
    湖北省重大科技攻关项目(尖刀2023BAA004)

Test and inversion of properties parameters of Ti/EPDM bonded interface

CHEN Caiyue1, DING Anxin1*, ZHANG Yu2, HUANG Zeyong2, YANG Fan3, ZHAO Fei3, ZHOU Rui3, TANG Zijia3   

  1. 1. Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
    2. Hubei Sanjiang Space Jiangbei Mechanical Engineering Co., Ltd., Xiaogan 432000, China;
    3. Hubei Key Laboratory of Advanced Aerospace Propulsion Technology, System Design Institute of Hubei Aerospace Technology Academy, Wuhan 430040, China
  • Received:2024-10-11 Online:2026-02-06 Published:2026-02-06

摘要: 钛合金(Ti)/三元乙丙橡胶(EPDM)粘接界面是固体火箭发动机壳体的重要界面之一。本文基于Ⅰ,Ⅱ型断裂韧性测试获取界面仿真性能参数,结合剪切和扯离测试推导界面失效判据参数。建立含双悬臂梁(Double Cantilever Beam,DCB)试件的有限元模型,以双线性内聚力模型定义粘接面的接触关系,通过公式计算出仿真曲线和试验曲线的重合度,采用人工神经网络联合遗传算法(GA-ANN)、模拟退火算法(SA-ANN)以及MATLAB联合遗传算法(GA-MAT)、模拟退火算法(SA-MAT)求解函数最优值,从而获得界面模量的精确值。并以试验测试数据为基础,数值仿真为反演工具,优化计算为分析手段,采用测试-仿真-计算相结合的方法获取了Ti/EPDM粘接界面性能参数的精确值,为评估燃烧室壳体界面结构的环境适应性提供判据。

关键词: 三元乙丙橡胶, 双悬臂梁, 粘接界面, 人工神经网络, 参数反演, 复合材料

Abstract: The bonded interface of Titanium alloy/ethylene propylene diene monomer (EPDM) is one of the crucial interfaces in the solid rocket engine shell. In this paper, the simulation performance parameters were obtained based on the fracture toughness analysis test of mode Ⅰ and Ⅱ interface, and the failure criterion parameters were obtained through shear and peel tests. The finite element model of the double cantilever beam (DCB) specimen was established, and the contact of bonding surface was defined with the bilinear cohesive zone model. The degree of coincidence between the simulation and the experimental curve was calculated by formula, and the optimal value of the function was obtained by artificial neural network in combination with genetic algorithm (GA-ANN), simulated annealing (SA-ANN), and MATLAB in combination with genetic algorithm (GA-MAT) and simulated annealing (SA-MAT). Thus, the precise value of the interface modulus was obtained. Based on the experimental test results, numerical simulation was used as a reverse engineering tool, optimization calculation was used as an analysis method, and the precise value of the Ti/EPDM bonding interface performance parameters was obtained by combining testing, simulation, and calculation. The results are verified based on the test, and are in good agreement, providing a criterion for evaluating the environmental adaptability of the combustion chamber shell interface structure.

Key words: ethylene propylene diene monomer, double cantilever beam, adhesive interface, artificial neutral network, parameter inversion, composites

中图分类号: