Journal ArticleDOI
Experimental and computational studies of low cycle fatigue crack nucleation in a polycrystal
TLDR
In this paper, low cycle fatigue tests were carried out on a two-dimensional polycrystalline nickel-base alloy, where grain morphology and orientation were determined using electron back scatter diffraction (EBSD), and polycrystal plasticity analyses carried out for the characterised microstructure with identical conditions to the experiment tests.About:
This article is published in International Journal of Plasticity.The article was published on 2007-02-01. It has received 216 citations till now. The article focuses on the topics: Crack closure & Nucleation.read more
Citations
More filters
Journal ArticleDOI
Overview of constitutive laws, kinematics, homogenization and multiscale methods in crystal plasticity finite-element modeling: Theory, experiments, applications
TL;DR: In this paper, a review of continuum-based variational formulations for describing the elastic-plastic deformation of anisotropic heterogeneous crystalline matter is presented and compared with experiments.
Journal ArticleDOI
Microstructure-sensitive computational modeling of fatigue crack formation
TL;DR: In this article, microstructure-sensitive fatigue modeling is proposed for Ni-base superalloys, gear steels, and α-β Ti alloys, with focus on the individual grain scale as the minimum length scale of heterogeneity.
Journal ArticleDOI
Lengthscale-dependent, elastically anisotropic, physically-based hcp crystal plasticity: Application to cold-dwell fatigue in Ti alloys
TL;DR: In this paper, a crystal plasticity model for hcp materials is presented which is based on dislocation glide and pinning, and it is shown that the primary effect of elastic anisotropy during subsequent plastic flow is to increase local, grain-level, accumulated slip.
Journal ArticleDOI
Microstructure-sensitive extreme value probabilities for high cycle fatigue of Ni-base superalloy IN100
TL;DR: In this paper, a microstructure-sensitive extreme value statistical framework was proposed to quantify the effects of interactions between various micro-structure attributes on fatigue life in the HCF regime.
Journal ArticleDOI
The role of elastic anisotropy, length scale and crystallographic slip in fatigue crack nucleation
TL;DR: In this article, the role of elastic anisotropy and length scale effects in slip development and crack nucleation in polycrystal ferritic steel is investigated through experimental observation of multiple large-grained, notched, four-point bend tests combined with explicit microstructural representation of the same samples using crystal plasticity finite element techniques.
References
More filters
Journal ArticleDOI
Deformation and creep modeling in polycrystalline Ti–6Al alloys
TL;DR: In this paper, an experimentally validated computational model for titanium alloys accounting for plastic anisotropy and time-dependent plasticity for analyzing creep and dwell phenomena was developed for hcp crystalline structure, with the inclusion of microstructural crystallographic orientation distribution.
Journal ArticleDOI
Thermomechanical fatigue, oxidation, and Creep: Part II. Life prediction
Richard W. Neu,Huseyin Sehitoglu +1 more
TL;DR: In this article, a life prediction model for crack nucleation and early crack growth based on fatigue, environment (oxidation), and creep damage was developed for 1070 steel for a wide range of test conditions and straintemperature phasings.
Journal ArticleDOI
High– and low–cycle fatigue crack initiation using polycrystal plasticity
A. Manonukul,Fionn P.E. Dunne +1 more
TL;DR: In this article, a polycrystal plasticity finite element model was developed for nickel-base alloy C263 and a fatigue crack initiation criterion was proposed, based simply on a critical accumulated slip.
Journal ArticleDOI
Elasto-viscoplastic constitutive equations for polycrystalline metals: Application to tantalum
Mrityunjay Kothari,Lallit Anand +1 more
TL;DR: In this paper, the authors used a finite element program to simulate the evolution of crystallographic texture in simple compression, plane-strain compression, and torsion under quasi-static conditions.
Journal ArticleDOI
Polycrystal orientation distribution effects on microslip in high cycle fatigue
V.P. Bennett,David L. McDowell +1 more
TL;DR: In this paper, a two-dimensional micromechanical approach based on crystal plasticity was used to assess the degree of heterogeneity of cyclic plastic deformation for cyclic loading below the yield point among large sets of grains in a single phase polycrystal.
Related Papers (5)
Microstructure-sensitive computational modeling of fatigue crack formation
High– and low–cycle fatigue crack initiation using polycrystal plasticity
A. Manonukul,Fionn P.E. Dunne +1 more