基于PZL-130 TC-II Orlik教练机全尺寸疲劳试验的Nasgro方程灵敏度分析

Q4 Engineering

Fatigue of Aircraft Structures Pub Date : 2023-02-13 DOI:10.2478/fas-2022-0002

P. Reymer, A. Leski, M. Kurdelski

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引用次数: 0

摘要

摘要研究了基于Nasgro方程的裂纹扩展数值估计的敏感性。由于该方程考虑了应力强度因子范围(∆K)从阈值到临界值的整个裂纹扩展速度范围，因此被广泛用于裂纹扩展计算。本文的研究是基于PZL-130“Orlik”TC-II飞机的全尺寸疲劳试验(FSFT)的实际结果。我们提供了测试的简要描述和在测试后最初进行的裂纹扩展估计中遵循的一般方法。根据输入数据的变化对所得结果进行了验证。对总体结果进行了比较和讨论。

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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Sensitivity Analysis of the Nasgro Equation Based on the PZL-130 TC-II Orlik Trainer Aircraft Full Scale Fatigue Test

Abstract The study investigates the sensitivity of numerical crack propagation estimations based on the Nasgro equation. The equation is widely used for crack propagation calculations since it considers the whole range of crack propagation speed from threshold to critical values of stress intensity factor range (∆K). The presented investigation is based on the actual results of the full scale fatigue test (FSFT) of the PZL-130 ‘Orlik’ TC-II aircraft. We provide a brief description of the test and the general approach followed in crack propagation estimations originally carried out after the test. The obtained results are verified in terms of variation of the input data. Overall results are compared and discussed.

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来源期刊

Fatigue of Aircraft Structures Engineering-Safety, Risk, Reliability and Quality

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： The publication focuses on problems of aeronautical fatigue and structural integrity. The preferred topics include: full-scale fatigue testing of aircraft and aircraft structural components, fatigue of materials and structures, advanced materials and innovative structural concepts, damage tolerant design of aircraft structure, life extension and management of ageing fleets, structural health monitoring and loads, fatigue crack growth and life prediction methods, NDT inspections, airworthiness considerations.