Memorias de investigación
Research Publications in journals:
Effect of transverse strains and angular distortions on the nanoscale elastic behavior of platelet nanocomposites (Q1, Factor de Impacto 4,92; Percentil 95.662)
Year:2018
Research Areas
  • Engineering
Information
Abstract
In order to correctly predict the macroscale elastic behavior of nanocomposite macroscale structures, an accurate nanoscale model must be available for subsequent homogenization. In this work, we demonstrate that the accuracy of that nanoscale model greatly depends on the consideration of transverse strains and angular distortions, which are not frequently taken into account, but have a significant influence on the cohesive mechanisms at the nanofiller-matrix interface. We use a nanoscale cohesive model to qualitatively and quantitatively analyze the effect of transverse shear and angular distortion on the interfacial stress transfer mechanisms. While the effect of the transverse strain is less significant, results show that angular distortion greatly affects the interfacial damage pattern. It appears to shift the interfacial shear stress distribution to one of the interface ends, which consequently also modifies the interfacial longitudinal stress distribution and its mean value, resulting in reduced nanocomposite stiffnesses. The effect should be taken into account as shear and transverse strains may be present at the macroscale if, for instance, nanofiller misalignment or stress concentrators exist. We also provide design maps representing damage onset for different 2D multiaxial strain states in graphene-epoxy nanocomposites, so that the strain state limit can be inferred for the given nanocomposite properties. A substantial reduction in the allowable strains can be observed.
International
Si
JCR
Si
Title
Composites Part B: Engineering
ISBN
1359-8368
Impact factor JCR
4,92
Impact info
Situada en el primer cuartil (Q1) en el área de conocimiento "Material Science, Composites". Número 2 de 26 revistas. Percentil 95.662. En el área de "Engineering: Multidisciplinary" Número 3 de 86 revistas. Percentil 87.093
Volume
154
10.1016/j.compositesb.2018.07.045
Journal number
From page
10
To page
19
Month
DICIEMBRE
Ranking
Participants
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: GI-IM: Grupo de Investigación en Ingeniería de Máquinas
  • Departamento: Ingeniería Mecánica