000015058 001__ 15058
000015058 005__ 20161115100210.0
000015058 04107 $$aeng
000015058 046__ $$k2016-08-21
000015058 100__ $$aMa, Zhuo
000015058 24500 $$aFracture of soft elastic foam

000015058 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015058 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015058 506__ $$arestricted
000015058 520__ $$2eng$$aSoft elastic foams, which consist of flexible and stretchable ligaments, exhibit extremely high fracture toughness. Comparing the cellular structure of elastic foams with the network structure of rubbery polymers, this paper proposes a scaling law for the fracture energy of soft elastic foam. A phase-field model for the fracture processes in soft elastic structures is developed to verify the scaling law. The numerical simulations in 2D foam structures of different unit-cell geometries agree with the scaling law very well. In addition, the dependences of the macroscopic fracture energy on geometric parameters such as the network connectivity and spatial orientation have also been revealed by the numerical results. To further enhance the fracture toughness, a type of soft foam structures with folded ligaments has been proposed and its effective fracture energy is one order of magnitude higher than the base material can be reached by using the soft foam structure.

000015058 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015058 653__ $$a

000015058 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015058 720__ $$aMa, Zhuo
000015058 8560_ $$ffischerc@itam.cas.cz
000015058 8564_ $$s159746$$uhttps://invenio.itam.cas.cz/record/15058/files/TS.MS05-6.03.pdf$$yOriginal version of the author's contribution as presented on CD,  page 304, code TS.MS05-6.03
.
000015058 962__ $$r13812
000015058 980__ $$aPAPER