{"title":"Effect of body fluid on bovine cortical bone fatigue","authors":"Jie Yang , Xiaoyun Zhou , Zhenyu Zhu","doi":"10.1016/j.matlet.2025.138612","DOIUrl":null,"url":null,"abstract":"<div><div>Body fluid environment significantly enhances bone fatigue performance. In terms of fatigue mechanics, findings reveal that, stress amplitude has a relatively minor effect on fatigue lifespan across high mean stresses. However, for a comparable fatigue lifespan, the equivalent stress amplitude of bone fatigue in body fluid is 30–40 MPa higher than that in non-fluid environment. A bone fatigue model incorporating the influence of mean stress is proposed, with characteristic parameters that directly reflect the intrinsic properties of the bone material. Bone fatigue performance is associated with fatigue initiation and crack propagation regions, where smoother fatigue initiation zones and gradually evolving crack propagation areas contribute to improved fatigue performance. This research helps to elucidate the mechanisms of bone fatigue damage and fracture resistance both inside and outside body fluid environments.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138612"},"PeriodicalIF":2.7000,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X2500641X","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Body fluid environment significantly enhances bone fatigue performance. In terms of fatigue mechanics, findings reveal that, stress amplitude has a relatively minor effect on fatigue lifespan across high mean stresses. However, for a comparable fatigue lifespan, the equivalent stress amplitude of bone fatigue in body fluid is 30–40 MPa higher than that in non-fluid environment. A bone fatigue model incorporating the influence of mean stress is proposed, with characteristic parameters that directly reflect the intrinsic properties of the bone material. Bone fatigue performance is associated with fatigue initiation and crack propagation regions, where smoother fatigue initiation zones and gradually evolving crack propagation areas contribute to improved fatigue performance. This research helps to elucidate the mechanisms of bone fatigue damage and fracture resistance both inside and outside body fluid environments.
期刊介绍：
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive
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