Damage tolerance and durability evaluation of aluminium-lithium alloys

Report (1989)

Authors

R.J.H. Wanhill

L. Schra

W.G.J. 't Hart

Fracture Fatigue Durability Corrosion Fatigue crack growth Damage tolerance Aluminium-lithium Stress corrosion

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Published Date

19-01-1989

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NLR Technical Publication TP 89021 L

Abstract

New impetus to continued use of alximinium alloys in major structural areas of aircraft has been given by the development of aluminium-lithium alloys. However, qualification of these new materials for service requires extensive testing and evaluation, preferably in international cooperative programmes. The evaluation of aluminium-lithium alloys is discussed with particular attention to the balance of properties required to achieve damage tolerant and durable, long-life structures for transport aircraft. An assessment of the current developmental maturity of damage tolerant aluminium-lithium alloys is given.

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