<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The PZL M28’s service life is determined based on the fatigue tests of the wing and wing loads-carry-through structure. During the fatigue test, the first occurrence of significance was the appearance of a in the area of the wing where loads are applied from the strut. It was demonstrated during further activities that repairs of the wing and other basic assemblies enabled, when performed at an appropriate time, the airplane’s service life to be significantly increase.</p><p>In the case of each design change implemented in the airframe subject to the fatigue testing, a stress analysis of the airframe was required in order to check if local changes, i.e. local repairs, did not affect the stress level in other tested areas. This helped to avoid significant stress redistribution in the airframe after the repair, so the fatigue test was still valid for all areas of interest.</p></abstract>

The PZL M28’s service life is determined based on the fatigue tests of the wing and wing loads-carry-through structure. During the fatigue test, the first occurrence of significance was the appearance of a in the area of the wing where loads are applied from the strut. It was demonstrated during further activities that repairs of the wing and other basic assemblies enabled, when performed at an appropriate time, the airplane’s service life to be significantly increase.In the case of each design change implemented in the airframe subject to the fatigue testing, a stress analysis of the airframe was required in order to check if local changes, i.e. local repairs, did not affect the stress level in other tested areas. This helped to avoid significant stress redistribution in the airframe after the repair, so the fatigue test was still valid for all areas of interest.

Stress Analysis of the PZL M28’s Airframe Subjected to Repairs During Fatigue Tests

Polskie Zakłady Lotnicze Sp. z o.o., ul. Wojska Polskiego 3, 39-300 Mielec

Fatigue of Aircraft Structures

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The PZL M28’s service life is determined based on the fatigue tests of the wing and wing loads-carry-through structure. During the fatigue test, the first...

Stress Analysis of the PZL M28’s Airframe Subjected to Repairs During Fatigue Tests

Published Online: Jun 30, 2015

Page range: 107 - 112

DOI: https://doi.org/10.1515/fas-2014-0011

Keywords
metallic airframe structure, full scale fatigue tests

© Józef Brzęczek et al.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Stress Analysis of the PZL M28’s Airframe Subjected to Repairs During Fatigue Tests

Published Online: Jun 30, 2015

Page range: 107 - 112

DOI: https://doi.org/10.1515/fas-2014-0011

Keywordsmetallic airframe structure, full scale fatigue tests

© Józef Brzęczek et al.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
metallic airframe structure, full scale fatigue tests