التفاصيل البيبلوغرافية
| العنوان: |
Effect of characteristic impedance in estimating specific energy and average fragment size at high strain rates of some peridotitic rock materials at laboratory scale |
| المؤلفون: |
Ozoji, T. (Toochukwu), Zhang, Z.-X. (Zong-Xian), Adeyemi, A. (Aladejare), Qiao, Y. (Yang), Chi, L.-Y. (Li-Yuang) |
| بيانات النشر: |
Springer Nature |
| سنة النشر: |
2023 |
| المجموعة: |
Jultika - University of Oulu repository / Oulun yliopiston julkaisuarkisto |
| مصطلحات موضوعية: |
Average fragment size, Characteristic impedance, High strain rates, Rock breakage, Specifc energy, Split Hopkinson’s pressure bar |
| الوصف: |
In this study, the application of characteristic impedance in estimating specific energy and average fragment size of rocks was investigated during rock breakage at high strain rates. To achieve this, rock specimen was prepared in accordance with recommendations of the International Society for Rock Mechanics and broken at high strain rates using the split Hopkinson’s pressure bar system. Results reveal that although strain rate is well related to specific energy and average fragment size of broken rocks, the product of characteristic impedance and strain rate is more reliable for estimating the forementioned parameters. In addition, strain rate and dissipated energy generally increase at higher incident energies while the average fragment size of broken rocks reduces at higher strain rates. Based on these findings, more studies on indirect estimation of energy requirement for rock breakage to desired average fragment sizes is recommended from the product of characteristic impedance and strain rate. |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| الاتاحة: |
http://urn.fi/urn:nbn:fi-fe20230830113442 |
| Rights: |
info:eu-repo/semantics/openAccess ; © The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. ; https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.6FCEBAB4 |
| قاعدة البيانات: |
BASE |