Cost-effective and efficient resin-injection device for repairing damaged composites

Abstract

Traditionally, the main structural components of land transport vehicles, e.g. passenger vehicles and trucks, have been made of metals such as steel and aluminium. As the number of vehicles increases on the road, global effort to reduce pollutant emission has put pressure on the vehicle manufacturers to design and manufacture fuel-efficient vehicles using strong and light-weight structures made of materials such as fibre-reinforced polymer composite (FRP) laminates [1] . For instance, with regard to the new Volvo performance car, Polestar 1, a majority of the parts in the upper body, including doors, bonnet and boot lid, are made of carbon FRP (CFRP) laminates [2] . Interestingly, this design not only provides for maximum stiffness and lightness, but reduces the weight of the upper body, lowers the vehicle’s centre of gravity that results in enhanced handling, performance and drivability [2] .

In situ resin‐injection approach for repairing barely visible impact damaged carbon‐fiber reinforced epoxy laminates: Optimizing the repair parameters using Taguchi method

“…The repair procedures follow a method that was described in earlier paper. [13] The rigid enclosure featured two side ports. One port could be connected to a vacuum pump (SE-150VH, Unicrown Co., Ltd.) to facilitate the removal of air, moisture, and debris out from the crack.…”

Dataset on open/blind hole-hole interaction in barely visible impact damaged composite laminates

“…The data could direct future research relating to the optimization of the design of resin-injection method for repairing damage structures [1] , [2] , as well as new approaches relating to the response of drilling holes in composite materials.…”

Dataset on mechanical properties of damaged fibre composite laminates with drilled vent-holes for resin-injection repair procedure

“…The centre circular hole represented the resin-injection hole; the four white circular holes around the centre hole indicated the vent holes. These holes were drilled after the laminate was subjected to quasi-static indentation (QSI) to generate BVID [1] , [2] . Panel b shows a close-up image of the damage around the respective vent holes.…”