Zobrazeno 1 - 10
of 255
pro vyhledávání: '"Lucarini, S."'
Autor:
Lucarini, S., Martínez-Pañeda, E.
We present a wrapper that allows Abaqus user material subroutines (UMATs) to be used as an External Material library in the software COMSOL Multiphysics. The wrapper, written in C language, transforms COMSOL's external material subroutine inputs and
Externí odkaz:
http://arxiv.org/abs/2402.13925
Publikováno v:
Computer Methods in Applied Mechanics and Engineering 2021
An FFT framework which preserves a good numerical performance in the case of domains with large regions of empty space is proposed and analyzed for its application to lattice based materials. Two spectral solvers specially suited to resolve problem c
Externí odkaz:
http://arxiv.org/abs/2110.00733
Publikováno v:
computer methods in applied mechanics and engineering, 2021
The simulation of fracture using continuum ductile damage models attains a pathological discretization dependence caused by strain localization, after loss of ellipticity of the problem, in regions whose size is connected to the spatial discretizatio
Externí odkaz:
http://arxiv.org/abs/2103.04770
The influence of grain size on the flow stress of various FCC polycrystals (Cu, Al, Ag and Ni) has been analyzed by means of computational homogenization of a representative volume element of the microstructure using a FFT approach in combination wit
Externí odkaz:
http://arxiv.org/abs/1910.01946
Publikováno v:
In International Journal of Fatigue July 2023 172
Autor:
Lucarini, S., Segurado, J.
Publikováno v:
International Journal for Numerical Methods in Engineering 2019
A new algorithm is proposed to impose a macroscopic stress or mixed stress/deformation gradient history in the context of non-linear Galerkin based FFT homogenization. The method proposed is based in the definition of a modified projection operator i
Externí odkaz:
http://arxiv.org/abs/1901.06531
Publikováno v:
International Journal of Fatigue, 113, 236-245, 2018
A microstructure-based model that accounts for the effect of grain size has been developed to study the effect of grain size on the fatigue life of Inconel 718 alloys. The fatigue behavior of two alloys with different grain size was determined by mea
Externí odkaz:
http://arxiv.org/abs/1804.01515
Publikováno v:
International Journal of Fatigue, 107, 40-48, 2018
A microstructure-based model is presented to predict the fatigue life of polycrystalline metallic alloys which present a bilinear Coffin-Manson relationship. The model is based in the determination of the maximum value of a fatigue indicator paramete
Externí odkaz:
http://arxiv.org/abs/1707.06605
Publikováno v:
In Computer Methods in Applied Mechanics and Engineering 1 January 2022 388
Publikováno v:
In Journal of the Mechanics and Physics of Solids January 2020 134