Effect of body fluid on bovine cortical bone fatigue

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-04-20 DOI:10.1016/j.matlet.2025.138612

Jie Yang , Xiaoyun Zhou , Zhenyu Zhu

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.

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体液对牛皮质骨疲劳的影响

体液环境显著提高骨疲劳性能。在疲劳力学方面，研究结果表明，应力幅值对高平均应力下的疲劳寿命的影响相对较小。然而，在相当的疲劳寿命下，体液环境下骨疲劳的等效应力幅值比非流体环境下高30-40 MPa。提出了一种考虑平均应力影响的骨疲劳模型，其特征参数直接反映骨材料的固有特性。骨疲劳性能与疲劳起裂区和裂纹扩展区有关，其中更平滑的疲劳起裂区和逐渐演化的裂纹扩展区有助于提高疲劳性能。本研究有助于阐明体液内外环境下骨疲劳损伤和骨折抵抗的机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

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