航空航天焊接接头工程结构的疲劳寿命

Q3 Earth and Planetary Sciences

Aerospace Systems Pub Date : 2023-02-02 DOI:10.1007/s42401-023-00197-7

Elena Vlasova, Aleksandr Sidorenko, Alexey Amosov, Ayubjon Vokhidov

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引用次数: 0

摘要

提出了一种考虑残余焊接应力影响的含连续焊接接头结构在随机运动载荷下的疲劳寿命评估方法和结果。在数值模拟的基础上，建立了焊接接头区域随机应力过程的实现以及规则应力循环振幅重复性的依赖关系。通过两种疲劳损伤累积理论确定了结构的耐久性特征。显示了残余焊接应力水平对耐久性的显著影响。

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Fatigue life of engineering structures with regard to aerospace welding joint

A methodology and results of fatigue life assessment of a structure containing continuous welding joint under random kinematic loading taking into account the influence of residual welding stresses have been presented. Realizations of random stress processes in the welding joint area and dependences for amplitude repeatability of reduced regular stress cycles have been constructed on the basis of numerical simulation. Characteristics of durability of the structure by two theories of accumulation of fatigue damages have been determined. Significant influence of residual welding stress levels on durability is shown.

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来源期刊

Aerospace Systems Social Sciences-Social Sciences (miscellaneous)

CiteScore

1.80

自引率

0.00%

发文量

期刊介绍： Aerospace Systems provides an international, peer-reviewed forum which focuses on system-level research and development regarding aeronautics and astronautics. The journal emphasizes the unique role and increasing importance of informatics on aerospace. It fills a gap in current publishing coverage from outer space vehicles to atmospheric vehicles by highlighting interdisciplinary science, technology and engineering. Potential topics include, but are not limited to: Trans-space vehicle systems design and integration Air vehicle systems Space vehicle systems Near-space vehicle systems Aerospace robotics and unmanned system Communication, navigation and surveillance Aerodynamics and aircraft design Dynamics and control Aerospace propulsion Avionics system Opto-electronic system Air traffic management Earth observation Deep space exploration Bionic micro-aircraft/spacecraft Intelligent sensing and Information fusion