Journal
THEORETICAL AND APPLIED FRACTURE MECHANICS
Volume 116, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.tafmec.2021.103127
Keywords
Certification; Compression after impact; Composite materials; Damage tolerance
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The slow-growth certification approach has the potential to reduce weight in composite aircraft structures, but current methods lack accuracy in predicting damage growth and final failure, mainly due to knowledge gaps in damage characterization, prediction, and final failure.
Using the slow-growth certification approach for damage tolerance of composite aircraft structures has the potential to reduce their weight. Applying this approach requires that damage growth is slow, stable, and predictable. However, currently available methods do not allow for sufficiently accurate predictions, due to knowledge gaps related to damage characterisation, prediction of damage growth, and prediction of final failure. This article highlights these knowledge gaps, discusses the limitations of the current state of the art and research approaches, and identifies possible ways forward.
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