دورية أكاديمية

Investigation on the Application of Taylor Impact Test to High-G Loading

التفاصيل البيبلوغرافية
العنوان: Investigation on the Application of Taylor Impact Test to High-G Loading
المؤلفون: Li Juncheng, Chen Gang, Lu Yonggang, Huang Fenglei
المصدر: Frontiers in Materials, Vol 8 (2021)
بيانات النشر: Frontiers Media S.A., 2021.
سنة النشر: 2021
المجموعة: LCC:Technology
مصطلحات موضوعية: taylor impact, missile-borne recorder, high-g load, impact load, sawtooth waveform, pulse duration, Technology
الوصف: Taylor impact test is characterized by high impact energy, low cost, and good repeatability, giving it the technical foundation and development potential for application in high-g loading. In this paper, the feasibility of performing high-g load impact testing to a missile-borne recorder by conducting Taylor impact test was studied by combining simulation analyses with experimental verification. Acccording to the actual dimensions of the missile-borne recorder, an experimental piece was designed based on the Taylor impact principle. The impact loading characteristics of the missile-borne recorder were then simulated and analyzed at different impact velocities. In addition, the peak acceleration function and the pulse duration function of the load were fitted to guide the experimental design. A Taylor-Hopkinson impact experiment was also conducted to measure the impact load that was actually experienced by the missile-borne recorder and the results were compared with the results of strain measurements on the Hopkinson incident bar. The results showed that the peak value of impact load, the pulse duration and the waveform of the actual experimental results were in good agreement with the results predicted by the simulations. Additionally, the strain data measured on the incident bar could be used to verify or replace the acceleration testing of the specimen to simplify the experimental process required. Based on the impact velocity, high-g loading impact was achieved with peak values in the 7,000–30,000 g range and durations of 1.3–1 ms, and the waveform generated was a sawtooth wave. The research results provide a new approach for high amplitude and long pulse duration impact loading to large-mass components, and broaden the application field of Taylor impact test.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2296-8016
Relation: https://www.frontiersin.org/articles/10.3389/fmats.2021.717122/full; https://doaj.org/toc/2296-8016
DOI: 10.3389/fmats.2021.717122
URL الوصول: https://doaj.org/article/a4d1420c708c4084a15ece25fedaebba
رقم الأكسشن: edsdoj.4d1420c708c4084a15ece25fedaebba
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:22968016
DOI:10.3389/fmats.2021.717122