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in: Handbook of Damage Mechanics:Nano to Macro Scale for Materials and Structures, Voyiadjis G.Z., Editor, Springer Nature, Zug, pp.197-211, 2022
Sandwich materials have a lightweight core and two face sheets combined with
increasing the materials’ bending rigidity with low density. Sandwich materials
can be designed according to structural requirements. Nowadays, airplanes, ships,
space vehicles, satellites, or wind turbines require lightweight structures with easy
repairing. Self-healing materials present a good opportunity for these kinds of
designs to increase the systems’ life span. Damages can occur in these kinds of
structures due to impact or blast, or any other unexpected reason; the structural
repairing of these kinds of devices is too expensive due to difficulties in handling.
Self-healing sandwich structures combine self-healing material properties with
light-weighting and high bending rigidity of sandwich structures. Self-healable
sandwiches give this kind of device an advantage to extend their structural life
span at a low cost. This chapter presents four main topics: self-healing sandwich
panels, blast phenomena and their effects on systems, finite element modeling of sandwich panels under blast loading, and finite element modeling of damaged
sandwich panels with self-healing.