Durability and damage tolerance analysis methods for lightweight aircraft structures: Review and prospects

International Journal of Lightweight Materials and Manufacture

Jianhong Lin¹ 

[1]AVIC Aircraft Strength Research Institute, AVIC, Xi'an 710012, China

关键词: Aircraft manufacturing;    Airworthiness;    Damage tolerance;    Durability;    Test pyramid;    Validation &;    Verification;   

DOI  :  

来源: DOAJ

【 摘 要 】

This article started with a review on the evolutionary history of airworthiness regulations. Requirements for Durability and Damage Tolerance designs in current airworthiness regulations are an accumulation result of lessons learnt from various aircraft accidents. “Analysis, supported by tests” can be concluded as the baseline of the airworthiness regulations. Although the research works for the fatigue failures in metallic structures have been continued for more than 170 years, unforeseen fatigue failures are still occurring in the full-scale fatigue validation tests and aircraft operations. Various influence factors to the uncertainties of fatigue failures have been discussed from the aspects of metallic materials, structure features, machining processes and assembly processes. It can be concluded that considering the effects of manufacturing processes on the fatigue failure, generating the design values and validating related design methods/tools with test pyramids are the best way to design, produce, operate and maintain aircraft with lightweight structures.

【 授权许可】

Unknown