TY - GEN
T1 - Mechanics of randomly folded thin materials
AU - Huerta, Orlando Susarrey
AU - Nuñez, Maribel Mendoza
AU - Tamayo, Pedro
AU - Balankin, Alexander
PY - 2009
Y1 - 2009
N2 - In this work, the mechanical properties of randomly folded thin sheets in the hydrostatic and non-hydrostatic stress states were studied. It is pointed out that under the hydrostatic compression the sheet, rigidity is governed by the volume dependence of its enthalpy, whereas in a non-hydrostatic stress state, the rigidity of folded sheets is controlled by the shape dependence of the Edwards entropy of the network of crumpling creases. Furthermore, the stress relaxation in folded sheets after uni-axial compression was studied. It was found that stress relaxation in folded elasto-plastic sheets differs from this in the folded predominantly plastic sheets and obeys an unusual relaxation law with the universal characteristic exponent.
AB - In this work, the mechanical properties of randomly folded thin sheets in the hydrostatic and non-hydrostatic stress states were studied. It is pointed out that under the hydrostatic compression the sheet, rigidity is governed by the volume dependence of its enthalpy, whereas in a non-hydrostatic stress state, the rigidity of folded sheets is controlled by the shape dependence of the Edwards entropy of the network of crumpling creases. Furthermore, the stress relaxation in folded sheets after uni-axial compression was studied. It was found that stress relaxation in folded elasto-plastic sheets differs from this in the folded predominantly plastic sheets and obeys an unusual relaxation law with the universal characteristic exponent.
KW - Crumpling network
KW - Elasticity
KW - Forced folding
KW - Fractal dimension
UR - http://www.scopus.com/inward/record.url?scp=70349295303&partnerID=8YFLogxK
M3 - Contribución a la conferencia
SN - 9780878493302
T3 - Advanced Materials Research
SP - 33
EP - 38
BT - 17th International Materials Research Congress; from the 17th International Materials Research Congress, Symposium 11, Fracture Mechanics
T2 - 9th Edition of the Symposium Fracture Mechanics; Held within the Activities of the 17th International Materials Research Congress, IMRC
Y2 - 18 August 2008 through 21 August 2008
ER -