LF21板材胶贴修补件的裂纹扩展统计分析

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1993, Vol. 14 ›› Issue (5): 317-321.

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STATISTICAL ANALYSIS OF FATIGUE CRACK GROWTH FOR BONDED REPAIR SHEET OF LF21 ALLOY

Jiang Jin-long , Zhao Ming-pan, Huang Kai-tian

Box. No.2 of Yao Country Shaanxi, Yao Country, 727100

Received:1992-07-16 Revised:1992-09-05 Online:1993-05-25 Published:1993-05-25

Abstract

Abstract: In accordance with CCT specimen of LF21 antirust aluminium-alloy (material of JX auxiliary fuel tank ), through bonded repair with composite patch adopting two types of ad-hesives the statistical analysis of fatigue crack growth is presented in two kinds of distributions. Thus, an excellent reliability analysis base is provided for establiahing a new patched-crack growth model. The calculation results show that the anti-fatigue performance of XH-11 adhesive is superior to metalplastic adhesive. These results can be used as reference in bonded repair of aircraft structures.

Key words: reliability, confidence level, statistical analysis, crack growth

Jiang Jin-long;Zhao Ming-pan;Huang Kai-tian. STATISTICAL ANALYSIS OF FATIGUE CRACK GROWTH FOR BONDED REPAIR SHEET OF LF21 ALLOY[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1993, 14(5): 317-321.

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STATISTICAL ANALYSIS OF FATIGUE CRACK GROWTH FOR BONDED REPAIR SHEET OF LF21 ALLOY

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