Whole-field strain analysis and damage assessment of adhesively bonded patch repair of CFRP laminates using 3D-DIC and FEA

Energy absorption of repaired composite laminates subjected to impact loading

“…Experimental methods that provide full-field strain measurements of sufficient sensitivity are required to accurately characterize the effectiveness of the repair [6]. These methods offer several advantages over traditional measurement methods.…”

Adhesive bonding of carbon fiber reinforced composite using UV-curing epoxy resin

“…The objective for temporary repair is to restore the mechanical properties until the aircraft can operate a permanent repair or replacement. The repair of composite materials can be operated into two methods: mechanical fastening or adhesive bonding [12][13][14][15][16]. Mechanical fastening is a popular way to connect the patches to the substrate using bolts or rivets.…”

Effect of post-cure temperature and different reinforcements in adhesive bonded repair for damaged glass/epoxy composites under multiple quasi-static indentation loading

“…In most cases, adhesive bonded repair is preferred to fastener repair due to its low stress concentration, economy, superior structural integrity and easier shaping of the repair surface [8]. In recent years, considerable analytical, numerical and experimental works have been carried out to study the effect of various parameters on the structural integrity, ultimate strain to failure, load distribution and residual mechanical strength of the adhesive bond repaired laminates [9][10][11]. More in detail, externally bonded patch repair and scarf repair are the two most commonly practiced adhesive bonded repair methods in composite laminates [7].…”

“…A good understanding of damage mechanisms of repaired composite laminates under transverse loading is important for the design and certification of the repair. In particular, it is important to guarantee that repairs are performed in the understanding that damage caused while a mechanical load is applied will not excessively affect the laminate strength, reducing it below the design limit of the structure [9].…”