McKenna Roan , Nick Hudyma , George G.A. Pujalte , Jeff T. Wight
{"title":"Technical note: Exploring acoustic emission characteristics from quasistatic compression testing of aged and fresh bovine cortical bone","authors":"McKenna Roan , Nick Hudyma , George G.A. Pujalte , Jeff T. Wight","doi":"10.1016/j.medengphy.2025.104439","DOIUrl":null,"url":null,"abstract":"<div><div>Bone specimens are preserved using various methods, which have been shown to influence their material properties. An unexplored process of assessing the influence of preservation methods is using acoustic emission (AE) monitoring during quasistatic compression testing. AEs are transient ultrasonic waves generated during abrupt, localized plastic deformation. AE waveforms were collected and assessed for specimens preserved with two methods: fresh frozen and aged by boiling and bleaching. Results demonstrated that aged specimens exhibit different AE characteristics compared to fresh specimens, including an earlier onset of microcracking, higher AE event counts, and greater AE amplitudes and energies. Aged specimens generally showed a mix of tensile and shear microcracks, while fresh specimens predominantly exhibited shear microcracks. This study highlights the influence of preservation methods on the AE characteristics of bone tested in compression, providing valuable insight into the differences in microcracking phenomena between fresh and aged specimens.</div></div>","PeriodicalId":49836,"journal":{"name":"Medical Engineering & Physics","volume":"145 ","pages":"Article 104439"},"PeriodicalIF":2.3000,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Medical Engineering & Physics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1350453325001584","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, BIOMEDICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Bone specimens are preserved using various methods, which have been shown to influence their material properties. An unexplored process of assessing the influence of preservation methods is using acoustic emission (AE) monitoring during quasistatic compression testing. AEs are transient ultrasonic waves generated during abrupt, localized plastic deformation. AE waveforms were collected and assessed for specimens preserved with two methods: fresh frozen and aged by boiling and bleaching. Results demonstrated that aged specimens exhibit different AE characteristics compared to fresh specimens, including an earlier onset of microcracking, higher AE event counts, and greater AE amplitudes and energies. Aged specimens generally showed a mix of tensile and shear microcracks, while fresh specimens predominantly exhibited shear microcracks. This study highlights the influence of preservation methods on the AE characteristics of bone tested in compression, providing valuable insight into the differences in microcracking phenomena between fresh and aged specimens.
期刊介绍:
Medical Engineering & Physics provides a forum for the publication of the latest developments in biomedical engineering, and reflects the essential multidisciplinary nature of the subject. The journal publishes in-depth critical reviews, scientific papers and technical notes. Our focus encompasses the application of the basic principles of physics and engineering to the development of medical devices and technology, with the ultimate aim of producing improvements in the quality of health care.Topics covered include biomechanics, biomaterials, mechanobiology, rehabilitation engineering, biomedical signal processing and medical device development. Medical Engineering & Physics aims to keep both engineers and clinicians abreast of the latest applications of technology to health care.