超高周扭转疲劳载荷下疲劳裂纹萌生与扩展的综合研究

IF 1.8 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Physical Mesomechanics Pub Date : 2023-10-12 DOI:10.1134/S1029959923050053

I. S. Nikitin, A. D. Nikitin, B. A. Stratula

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引用次数: 0

摘要

本文研究了VT3-1钛合金光滑试样在完全反向载荷条件下的疲劳行为。给出了光滑试件在高周扭转疲劳载荷下疲劳断裂的数学建模结果。使用疲劳损伤累积的多模式双参数模型计算了疲劳准裂纹的萌生和扩展。研究了扭转载荷作用下的表面和亚表面准裂纹萌生。数值结果与实验数据吻合较好，可用于预测扭转等复杂多轴载荷作用下裂纹扩展机制的变化。

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A Comprehensive Study of Fatigue Crack Initiation and Growth under Very High Cycle Torsional Fatigue Loading

This paper investigates the fatigue behavior of smooth specimens made of VT3-1 titanium alloy under fully reversed loading conditions. Mathematical modeling results are presented for the fatigue fracture of smooth specimens under high cycle torsional fatigue loading. The fatigue quasi-crack initiation and growth are calculated using a multimode two-parameter model of fatigue damage accumulation. The surface and subsurface quasi-crack initiation under torsional loading is studied. The numerical results are in good agreement with the experimental data and can be used to predict the change in crack growth mechanisms under complex multiaxial loadings such as torsion.

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来源期刊

Physical Mesomechanics Materials Science-General Materials Science

CiteScore

3.50

自引率

18.80%

发文量

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related in the physical mesomechanics and also solid-state physics, mechanics, materials science, geodynamics, non-destructive testing and in a large number of other fields where the physical mesomechanics may be used extensively. Papers dealing with the processing, characterization, structure and physical properties and computational aspects of the mesomechanics of heterogeneous media, fracture mesomechanics, physical mesomechanics of materials, mesomechanics applications for geodynamics and tectonics, mesomechanics of smart materials and materials for electronics, non-destructive testing are viewed as suitable for publication.