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@article{Song:2021:10.1038/s41598-021-97495-x,
author = {Song, Y and Schiffer, A and Tagarielli, V},
doi = {10.1038/s41598-021-97495-x},
journal = {Scientific Reports},
pages = {1--17},
title = {The effects of heterogeneous mechanical properties on the response of a ductile material},
url = {http://dx.doi.org/10.1038/s41598-021-97495-x},
volume = {11},
year = {2021}
}

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TY  - JOUR
AB  - We investigate  numerically the small-strain, elastic-plastic  response  of statistically isotropic materials with non-uniform spatial distributions of mechanical  properties.The numerical predictions are compared to simple bounds derived analytically. We explore systematically the effects  of  heterogeneity on  the  macroscopic  stiffness,  strength,  asymmetry, stabilityand  size dependence. Monte Carlo analyses of the response of statistical volume elements are conducted at  different  strain  triaxiality using computational  homogenisation, and  allow  exploring  the macroscopic  yield  behaviour  of  the  heterogeneous material. We  illustrate quantitatively how the pressure-sensitivity  of  the  yield  surface  of  the  solid increases  with  heterogeneity  in  the elastic response. We use the simple analytical models developed here to derive an approximate scaling  law  linking the  fatigue endurance  threshold  of  metallic  alloys  to their  stiffness,  yield strength and tensile strength.
AU  - Song,Y
AU  - Schiffer,A
AU  - Tagarielli,V
DO  - 10.1038/s41598-021-97495-x
EP  - 17
PY  - 2021///
SN  - 2045-2322
SP  - 1
TI  - The effects of heterogeneous mechanical properties on the response of a ductile material
T2  - Scientific Reports
UR  - http://dx.doi.org/10.1038/s41598-021-97495-x
UR  - https://www.nature.com/articles/s41598-021-97495-x
UR  - http://hdl.handle.net/10044/1/91308
VL  - 11
ER  -

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