Compressive strain measurements in porous materials using micro-FE and digital volume correlation

IF 1.4 4区 工程技术 Q3 ENGINEERING, MECHANICAL Journal of Strain Analysis for Engineering Design Pub Date : 2021-08-13 DOI:10.1177/03093247211038791
Sriram Kunnoth, P. Mahajan, S. Ahmad, N. Bhatnagar
{"title":"Compressive strain measurements in porous materials using micro-FE and digital volume correlation","authors":"Sriram Kunnoth, P. Mahajan, S. Ahmad, N. Bhatnagar","doi":"10.1177/03093247211038791","DOIUrl":null,"url":null,"abstract":"A local Digital Volume Correlation (DVC) based measurement of displacements and strains of synthetic bone samples under an ex-situ compression using the time-lapsed imaging procedure was performed in the present study. Micro Finite Element (µFE) model was used to simulate the compression of synthetic bone samples with experimental-based (ExBC), and DVC interpolated displacement boundary conditions (IPBC). The obtained µFE nodal displacement data compared with DVC. A good match of displacement patterns and correlation values of R2 = 0.85–0.99 and RMSE ≤ 12 µm was observed for the IPBC predicted displacements against DVC displacements. However, the ExBC provided a good correlation of transverse displacements only (U: R2 = 0.85–0.99 and V: R2 = 0.77–0.99). The average axial displacement of ExBC matched well with DVC, and a qualitative and quantitative understanding of the axial displacement was possible with ExBC. A moderate agreement of axial strain patterns was observed between DVC and IPBC, even though a good agreement on displacement was observed. The ExBC showed a higher axial strain compared to DVC in all samples. The transverse strains varied between the same extreme values for both boundary conditions and within the DVC range.","PeriodicalId":50038,"journal":{"name":"Journal of Strain Analysis for Engineering Design","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Strain Analysis for Engineering Design","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1177/03093247211038791","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 1

Abstract

A local Digital Volume Correlation (DVC) based measurement of displacements and strains of synthetic bone samples under an ex-situ compression using the time-lapsed imaging procedure was performed in the present study. Micro Finite Element (µFE) model was used to simulate the compression of synthetic bone samples with experimental-based (ExBC), and DVC interpolated displacement boundary conditions (IPBC). The obtained µFE nodal displacement data compared with DVC. A good match of displacement patterns and correlation values of R2 = 0.85–0.99 and RMSE ≤ 12 µm was observed for the IPBC predicted displacements against DVC displacements. However, the ExBC provided a good correlation of transverse displacements only (U: R2 = 0.85–0.99 and V: R2 = 0.77–0.99). The average axial displacement of ExBC matched well with DVC, and a qualitative and quantitative understanding of the axial displacement was possible with ExBC. A moderate agreement of axial strain patterns was observed between DVC and IPBC, even though a good agreement on displacement was observed. The ExBC showed a higher axial strain compared to DVC in all samples. The transverse strains varied between the same extreme values for both boundary conditions and within the DVC range.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
利用微有限元和数字体积相关技术测量多孔材料的压缩应变
在本研究中,使用延时成像程序对非原位压缩下合成骨样本的位移和应变进行了基于局部数字体积相关(DVC)的测量。采用微有限元(µFE)模型,分别采用基于实验的(ExBC)和DVC插值的位移边界条件(IPBC)模拟合成骨样品的压缩过程。将所得的微FE节点位移数据与DVC进行比较。IPBC预测位移与DVC位移的匹配良好,相关值R2 = 0.85-0.99, RMSE≤12µm。然而,ExBC仅提供了横向位移的良好相关性(U: R2 = 0.85-0.99, V: R2 = 0.77-0.99)。ExBC的平均轴向位移与DVC匹配良好,可以对ExBC的轴向位移进行定性和定量的了解。在DVC和IPBC之间观察到中度一致的轴向应变模式,即使在位移上观察到良好的一致。与DVC相比,ExBC在所有样品中都表现出更高的轴向应变。在两种边界条件下,横向应变在相同的极值之间变化,且在DVC范围内。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Journal of Strain Analysis for Engineering Design
Journal of Strain Analysis for Engineering Design 工程技术-材料科学:表征与测试
CiteScore
3.50
自引率
6.20%
发文量
25
审稿时长
>12 weeks
期刊介绍: The Journal of Strain Analysis for Engineering Design provides a forum for work relating to the measurement and analysis of strain that is appropriate to engineering design and practice. "Since launching in 1965, The Journal of Strain Analysis has been a collegiate effort, dedicated to providing exemplary service to our authors. We welcome contributions related to analytical, experimental, and numerical techniques for the analysis and/or measurement of stress and/or strain, or studies of relevant material properties and failure modes. Our international Editorial Board contains experts in all of these fields and is keen to encourage papers on novel techniques and innovative applications." Professor Eann Patterson - University of Liverpool, UK This journal is a member of the Committee on Publication Ethics (COPE).
期刊最新文献
Anti-plane analysis of a crack terminating at interface of the isotropic half-planes bonded to intact orthotropic layers Compressive performance of paper honeycomb core layer with double-hole in cell walls A novel multiaxial fatigue life prediction model based on the critical plane theory and machine-learning method Non-linear analysis of the flexural-torsional stability of slender tropical glulam beams Approximate methods for contact problems involving beams
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1