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JETELA, V. KLEMENT, J. AUGUSTIN, P.
Original Title
The possibility for improving damage tolerance of integral airframe structure by high strength bonded straps
Type
journal article in Scopus
Language
English
Original Abstract
Integral stringer panels can attain weight reduction in primary aircraft structures, but do not contain the physical barriers for a fatigue crack growth. One of the promising techniques for prolonging a fatigue crack growth is bonded crack retarders made of materials with high stiffness. An experimental study was done on two specimens with different geometries. High strength bonded straps made of corrosion resistant steel AISI 301 were adhesively bonded to Center-Cracked Tension (CCT) specimens made of aluminium alloy 2024-T351 and fabricated by a high-speed machining process to promote fatigue crack growth retardation. Specimens were tested at a constant amplitude load. The study concludes that the fatigue crack growth life can be significantly improved. Experimental results were compared with a prediction based on the VCCT technique and the NASGRO equation.
Keywords
Bonded crack retarder; Damage tolerance; Fatigue crack growth; Integral structure; Strap
Authors
JETELA, V.; KLEMENT, J.; AUGUSTIN, P.
Released
19. 10. 2018
Publisher
Faculty of Production Technology and Management
Location
Czech Republic
ISBN
1213-2489
Periodical
Manufacturing TECHNOLOGY
Year of study
18
Number
4
State
Pages from
572
Pages to
577
Pages count
5
URL
https://arl.ujep.cz/arl-ujep/en/detail-ujep_us_cat-0265111-The-possibility-for-improving-damage-tolerance-of-integral-airframe-structure-by-high-strength-bonde/?disprec=20&iset=2&pg=2
BibTex
@article{BUT150652, author="Václav {Jetela} and Josef {Klement} and Petr {Augustin}", title="The possibility for improving damage tolerance of integral airframe structure by high strength bonded straps", journal="Manufacturing TECHNOLOGY", year="2018", volume="18", number="4", pages="572--577", doi="10.21062/ujep/140.2018/a/1213-2489/MT/18/4/572", issn="1213-2489", url="https://arl.ujep.cz/arl-ujep/en/detail-ujep_us_cat-0265111-The-possibility-for-improving-damage-tolerance-of-integral-airframe-structure-by-high-strength-bonde/?disprec=20&iset=2&pg=2" }