TY - JOUR
T1 - Mechanical properties and relaxation behavior of crumpled aluminum foils
AU - Balankin, Alexander S.
AU - Cruz, M. A.Martínez
AU - Caracheo, L. A.Alcaraz
AU - Huerta, O. Susarrey
AU - Rivas, C. Dominguez
AU - Martínez, C. L.
AU - Ochoa, D. Samayoa
AU - Ruiz, L. Morales
AU - Gutiérrez, S. Matias
AU - Ortiz, J. Patiño
AU - Ortiz, M. Patiño
N1 - Publisher Copyright:
© 2015, Springer Science+Business Media New York.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - Crumpled metal foils are a new type of lightweight cellular materials. The engineering applications of crumpled foils require a deep understanding of their response to mechanical loads. In order to establish a comprehensive understanding of the mechanical behavior of crumpled foils, in the present study, the uniaxial compression experiments were performed on cylindrical samples of different packing densities manufactured by die compaction of randomly crumpled aluminum foils. This has allowed us to deduce the constitutive stress–strain relationship and quantify the relaxation behavior of crumpled foils. Consequently, we determine the mechanical properties (apparent Young modulus, yield stress, and longitudinal stiffness modulus) that govern the deformation behavior of crumpled samples in the whole range of relative deformation. The power-law dependence of mechanical properties on the initial packing density is revealed. The stress and strain relaxation behavior of crumpled foils is also elucidated. These findings provide further insight into the deformation behavior and relaxation mechanisms of crumpled aluminum foils. The knowledge of the mechanical and relaxation characteristics of crumpled aluminum foils is useful for their engineering application.
AB - Crumpled metal foils are a new type of lightweight cellular materials. The engineering applications of crumpled foils require a deep understanding of their response to mechanical loads. In order to establish a comprehensive understanding of the mechanical behavior of crumpled foils, in the present study, the uniaxial compression experiments were performed on cylindrical samples of different packing densities manufactured by die compaction of randomly crumpled aluminum foils. This has allowed us to deduce the constitutive stress–strain relationship and quantify the relaxation behavior of crumpled foils. Consequently, we determine the mechanical properties (apparent Young modulus, yield stress, and longitudinal stiffness modulus) that govern the deformation behavior of crumpled samples in the whole range of relative deformation. The power-law dependence of mechanical properties on the initial packing density is revealed. The stress and strain relaxation behavior of crumpled foils is also elucidated. These findings provide further insight into the deformation behavior and relaxation mechanisms of crumpled aluminum foils. The knowledge of the mechanical and relaxation characteristics of crumpled aluminum foils is useful for their engineering application.
UR - http://www.scopus.com/inward/record.url?scp=84937763637&partnerID=8YFLogxK
U2 - 10.1007/s10853-015-9030-0
DO - 10.1007/s10853-015-9030-0
M3 - Artículo
SN - 0022-2461
VL - 50
SP - 4749
EP - 4761
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 13
ER -