Characterization of the Flexural Behavior of SMP Sandwich Beam
Shape memory polymers (SMPs) can have a large frozen strain but providing much lower recovery stresses. To overcome such disadvantage, sandwich structures consisted of a SMP core and two thin metallic skins was considered. Due to much compliance of the SMP core, SMP sandwich beam is buckled at a lower packaging strain. Buckling is the fundamental character of SMP sandwich beam under bending. The critical buckling parameters about two types of SMP sandwich beams were theoretically derived.
Joong Hee Lee
Z. F. Li and Z. D. Wang, "Characterization of the Flexural Behavior of SMP Sandwich Beam", Advanced Materials Research, Vols. 123-125, pp. 939-942, 2010