Analytical prediction model for fatigue crack growth in Fibre Metal Laminates with MSD scenario. (November 2017)

• Record Type: Journal Article
• Authors: Wang, Wandong; Rans, Calvin; Benedictus, Rinze
• Is Part Of: International journal of fatigue. Volume 104(2017)
• Page Start: 263
• Page End: 272
• Publication Date: 2017-11
• Subjects: MSD -- Fibre metal laminates -- Load redistribution mechanism -- Non-symmetric crack growth; Materials -- Fatigue -- Periodicals; Materials -- Fatigue; Periodicals; 620.1122
• DOI: 10.1016/j.ijfatigue.2017.07.024
• Languages: English
• ISSNs: 0142-1123

Abstract

Highlights: The load redistribution mechanism is essential in analysing MSD growth in FMLs. This prediction model adequately captures the crack acceleration behaviour. This analytical model provides conservative prediction results. Abstract: This paper presents a theoretical and experimental study on Multiple-site Damage (MSD) crack growth behaviour in Fibre Metal Laminates (FMLs). The prediction model is developed based on a simplified analysis of the effects of load redistribution on a single crack in FMLs containing multiple cracks. Test results show that the crack growth accelerates as cracks grow towards each other. The tests also show non-symmetric crack growth behaviour and non-symmetric interfacial delamination propagation in case of multiple cracks. The prediction model successfully captures the crack growth acceleration and non-symmetric growth behaviour.