高过载下聚氨酯黏接界面动力学响应与失效实验及数值模拟
PDF下载 (132)张兴渝,王永刚,蒋招绣.高过载下聚氨酯黏接界面动力学响应与失效实验及数值模拟[J].宁波大学学报(理工版),2025,38(4):67-76.DOI:10.20098/j.cnki.1001-5132.2025.0304
ZHANG Xingyu,WANG Yonggang,JIANG Zhaoxiu.Experiment and numerical simulation of the mechanical behavior and failure of polyurethane bonding interface in electronic devices under high overload[J].Journal of Ningbo University(Natural Science & Engineering Edition),2025,38(4):67-76.DOI:10.20098/j.cnki.1001-5132.2025.0304
| Title: | Experiment and numerical simulation of the mechanical behavior and failure of polyurethane bonding interface in electronic devices under high overload |
| 作者: | 张兴渝, 王永刚, 蒋招绣 |
| Author(s): | ZHANG Xingyu, WANG Yonggang, JIANG Zhaoxiu |
| 关键词: | 聚氨酯黏接界面; 高过载; 霍普金森杆; 失效; 数值模拟 |
| Keywords: | polyurethane bonding interface; high overload; Hopkinson bar; failure; numerical simulation |
| 分类号: | TJ012.4 |
| DOI: | 10.20098/j.cnki.1001-5132.2025.0304 |
| 文献标识码: | A |
| 摘要: | 针对高过载环境下电子器件聚氨酯灌封防护界面失效问题，开展聚氨酯黏接界面动态力学失效行为研究。首先通过设计铜/聚氨酯/铜三明治结构试样，采用万能试验机开展了准静态垂直拉伸实验，揭示了界面延性失效的损伤演化规律，定量表征了界面强度和变形刚度等关键力学参数。设计了铜片/聚氨酯/铜柱（作为附加质量块）复合结构试样，利用自由式霍普金森杆冲击加载装置，通过调控卸载波时序实现聚氨酯黏接界面动态剥离，并基于激光测速技术捕捉了附加质量块自由面速度演化特征，建立了聚氨酯黏接界面动态失效行为的实验表征方法。基于内聚力模型，开展了聚氨酯黏接界面失效的瞬态有限元数值模拟，阐明了界面刚度、强度及临界失效位移等模型参数对动态失效过程及自由面速度特征的影响规律。数值模拟与实验结果吻合良好，验证了内聚力模型在表征界面动态失效行为方面的有效性。进一步研究表明，界面失效模型参数与加载加速度之间呈现线性增长关系，相比内聚力强度参数，计算结果对临界失效位移参数的敏感性较弱。 |
| Abstract: | To address the interface failure issue of polyurethane potting protection for electronic devices under high overload, this study investigates the dynamic mechanical failure behavior of polyurethane bonding interfaces. Firstly, a copper/polyurethane/copper sandwich structure specimen was designed, and quasi-static vertical tensile experiments were conducted using a universal testing machine. The experiments revealed the damage evolution mechanism of interface ductile failure and quantitatively characterized key mechanical parameters such as interface strength and deformation stiffness. Subsequently, a composite structure specimen (copper sheet/polyurethane/copper cylinder as an additional mass block) was developed. Dynamic peeling of the polyurethane bonding interface was achieved by controlling unloading wave timing through a free-style Hopkinson bar impact loading device. The laser velocimetry technique was employed to capture the free surface velocity evolution characteristics of the additional mass block, establishing an experimental characterization method for dynamic failure behavior. Based on the Cohesive Zone Model (CZM), transient finite element numerical simulations were performed to clarify the influence of model parameters (interface stiffness, strength, and critical failure displacement) on dynamic failure processes and free surface velocity characteristics. Numerical results showed good agreement with experimental data, validating the effectiveness of the CZM in characterizing dynamic interface failure. Further analysis revealed a linear growth relationship between interface failure model parameters and loading acceleration. In terms of their impact on the computational results, the critical failure displacement parameters exhibited weaker sensitivity as compared with the cohesive strength parameters. |
| 参考文献 /References: | [1] REN D M, HOU J H, DUAN J R, et al. Failure mode analysis of electronic detonator under high overload condition[J]. FirePhysChem, 2022, 2(2):199-205. [2] LIAN J K, LI J H, XU L X. The effect of displacement constraints on the failure of MEMS tuning fork gyroscopes under shock iMPact[J]. Micromachines, 2019, 10(5):343. [3] ZHANG X H, LI J Z, QIN F, et al. Experiments and numerical simulations of microelectronic devices subjected to multipoint iMPact loading[J]. Micro- electronics reliability, 2021, 127:114408. [4] YAU Y H, HUA S N, KOK C K. Structural failure analysis of polycarbonate enclosures of electronic devices subjected to multiple ball iMPacts[J]. Polymer testing, 2018, 65:374-386. [5] LIU J, SHI Y B, LI P, et al. Experimental study on the package of high-g accelerometer[J]. Sensors and actuators A: physical, 2012, 173(1):1-8. [6] 王铎, 陈斐洋, 蒋招绣, 等. 应变速率和填料质量分数对空心玻璃微珠/聚氨酯复合材料压缩力学性能的影响[J/OL]. [2025-03-05]. https://link.cnki.net/doi/10.13801/ j.cnki.fhclxb.20250320.004. [7] 朱经纬, 王汉臣, 辛公锋, 等. 高强聚氨酯复合材料力学性能及拉压本构模型[J/OL]. [2025-03-05]. https:// link.cnki.net/doi/10.13801/j.cnki.fhclxb.20250324.001. [8] BONOMO M, TAHERI B, BONANDINI L, et al. Thermosetting polyurethane resins as low-cost, easily scalable, and effective oxygen and moisture barriers for perovskite solar cells[J]. ACS applied materials & interfaces, 2020, 12(49):54862-54875. [9] 唐军, 赵锐, 石云波, 等. 高冲击环境下MEMS大量程加速度传感器结构的失效分析[J]. 传感技术学报, 2012, 25(4):483-486. [10] 赵小龙, 马铁华, 范锦彪. 弹载常用芯片在高g值冲击下的失效分析[J]. 仪器仪表学报, 2013, 34(10):2358- 2364. [11] 杨班权, 陈光南, 张坤, 等. 涂层/基体材料界面结合强度测量方法的现状与展望[J]. 力学进展, 2007, 37(1): 67-79. [12] PEREIRA J P O, CAMPILHO R G S G, NÓVOA P J R O, et al. Adherend effect on the peel strength of a brittle adhesive[J]. Procedia structural integrity, 2022, 37:722-729. [13] BADWE N, MAHAJAN R, SIERADZKI K. Interfacial fracture strength and toughness of copper/epoxy-resin interfaces[J]. Acta materialia, 2016, 103:512-518. [14] BLACKMAN B R K, KINLOCH A J, RODRIGUEZ SANCHEZ F S, et al. The fracture behaviour of structural adhesives under high rates of testing[J]. Engineering fracture mechanics, 2009, 76(18):2868-2889. [15] DEVI S, PARAMESWARAN V. Investigating de-bonding using an iMPact loaded blister test[J]. Experimental mechanics, 2025, 65(2):241-253. [16] KOJIMA T, KIMURA Y, ARIKAWA S, et al. Evaluation of dynamic fracture toughness of a bonded bi-material interface subject to high-strain-rate shearing using digital image correlation[J]. Engineering fracture mechanics, 2021, 241:107391. [17] PONNUSAMI S A, CUI H, ERICE B, et al. An integrated inverse numerical–experimental approach to determine the dynamic Mode-I interlaminar fracture toughness of fibre composites[J]. Composite structures, 2022, 293:115734. [18] KATSIVALIS I, THOMSEN O T, FEIH S, et al. Development of cohesive zone models for the prediction of damage and failure of glass/steel adhesive joints[J]. International journal of adhesion and adhesives, 2020, 97: 102479. [19] JIA Z M, YUAN G Q, FENG X P, et al. Numerical study on the mechanical behavior of a polyurethane adhesive under high strain rate[J]. Composites part B: engineering, 2019, 158:131-140. [20] DENGIZ C G. Effect of adhesive material properties on phase-field analysis of T-peel adhesive joints using the Taguchi method[J]. International journal of adhesion and adhesives, 2025, 139:103977. [21] KARAC A, BLACKMAN B R K, COOPER V, et al. Modelling the fracture behaviour of adhesively-bonded joints as a function of test rate[J]. Engineering fracture mechanics, 2011, 78(6):973-989. [22] 王永刚, 胡剑东, 王礼立. 金属材料层裂破坏的内聚力模型[J]. 固体力学学报, 2012, 33(5):465-470. [23] MARZI S, HESEBECK O, BREDE M, et al. A rate- dependent cohesive zone model for adhesively bonded joints loaded in mode I[J]. Journal of adhesion science and technology, 2009, 23(6):881-898. [24] 王礼立, 胡时胜. 应力波基础[M]. 3版. 北京: 国防工业出版社, 2023:42-43. |
| 备注/Memo: | 收稿日期：2025−03−10 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ 基金项目：国家自然科学基金（11972202） 第一作者：张兴渝，硕士研究生，主要研究方向为冲击动力学。E-mail: 18305676301@163.com *通信作者：王永刚，博士/教授，主要研究方向为冲击动力学。E-mail: wangyonggang@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
