The Influence of Background Ultrasonic Field on the Strength of Adhesive Zones under Dynamic Impact Loads | |
Volkov, Grigory; Logachev, Andrey; Granichin, Nikolai; Zhao YP(赵亚溥); Zhang Y(张吟); Petrov, Yuri | |
发表期刊 | MATERIALS |
2021-07 | |
卷号 | 14期号:12页码:3188 |
摘要 | The influence of background ultrasonic field on the ultimate dynamic strength of adhesive joints is studied using fracture mechanics analysis. Winkler foundation-type models are applied to describe the cohesion zone, and the incubation time fracture criterion is used. The challenging task is to study whether relatively weak ultrasound is able to -12rease the threshold values of the external impact load depending on a joint model, such as an elastic membrane or beam approximation, and various boundary conditions at the ends. The specific task was to investigate the case of short pulse loading through application of time-dependent fracture criterion instead of the conventional principle of critical stress. Three different load cases, namely, step constant force, dynamic pulse, and their combination with ultrasonic vibrations, were also studied. The analytical solution to the problem demonstrates that background vibrations at certain frequencies can significantly -12rease threshold values of fracture impact load. Specific calculations indicate that even a weak background sonic field is enough to cause a significant reduction in the threshold amplitude of a dynamic short pulse load. Additionally, non-monotonic dependency of threshold amplitude on pulse duration for weak background field was observed, which demonstrates the existence of optimal regimes of impact energy input. Moreover, this phenomenon does not depend on the way in which the beam edges mount, whether they are clamped or hinged, and it could be applied for micro-electro-mechanical switch design processes as an additional tool to control operational regimes. |
关键词 | dynamic impact background ultrasonic field adhesive joint strength incubation time criterion fracture dynamics |
学科领域 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter |
DOI | 10.3390/ma14123188 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000666139900001 |
项目资助者 | Russian Foundation for Basic Research [18-51-80008 BRICS, 20-31-70053] ; National Natural Science Foundation of China [NSFC] [11772335] |
论文分区 | 二类/Q1 |
力学所作者排名 | 3+ |
RpAuthor | Volkov, G (corresponding author), St Petersburg Univ, Math & Mech Fac, Univ Skiy Prospect 28, St Petersburg 198504, Russia. |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/90263 |
专题 | 非线性力学国家重点实验室 |
作者单位 | 1.St Petersburg Univ, Math & Mech Fac, Univ Skiy Prospect 28, St Petersburg 198504, Russia 2.Russian Acad Sci, Inst Problems Mech Engn, VO Bolshoy Pr T 61, St Petersburg 199178, Russia 3.Univ Chinese Acad Sci, Sch Engn Sci, 19A Yuquanlu, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beisihuangxilu 15, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Volkov, Grigory,Logachev, Andrey,Granichin, Nikolai,et al. The Influence of Background Ultrasonic Field on the Strength of Adhesive Zones under Dynamic Impact Loads[J]. MATERIALS,2021,14,12,:3188. |
APA | Volkov, Grigory,Logachev, Andrey,Granichin, Nikolai,Zhao YP,Zhang Y,&Petrov, Yuri.(2021).The Influence of Background Ultrasonic Field on the Strength of Adhesive Zones under Dynamic Impact Loads.MATERIALS,14(12),3188. |
MLA | Volkov, Grigory,et al."The Influence of Background Ultrasonic Field on the Strength of Adhesive Zones under Dynamic Impact Loads".MATERIALS 14.12(2021):3188. |
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