Edge cracking due to a compressive residual stress in ceramic laminates

Leguillon, Dominique; Ševeček, Oldřich; Martín, E.; Bermejo, Raúl

doi:10.1016/j.crme.2014.11.001

Cited by 9 publications

(11 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The scattering is large, it extends roughly from 30 to 110 MPa. The analysis in (Leguillon et al, 2015) of the onset of and edge crack in the compressive layers leads to a similar conclusion, residual stresses are more likely corresponding to a cooling lying between 800 −°C ( 1R σ = 74 MPa,…”

Section: The Coupled Thermo-elastic Problemmentioning

confidence: 55%

“…the edge crack runs parallel to the direction of applied stress. In general, the edge crack depth seems to be smaller or the same order than the thickness of the AMZ layer (Leguillon et al, 2015).…”

Section: The Tested Specimens and The Failure Mechanismsmentioning

confidence: 87%

“…In Fig.3, note that a dark line appears in both pictures within the AMZ layer. This is an edge crack caused by residual stresses which was analyzed in Chen et al (2010) and more recently in Leguillon et al (2015). It is shown in (Hbaieb et al, 2007) that if the stress state is such that it can cause the onset of an edge crack then it may also be responsible for the crack deflection.…”

Section: The Tested Specimens and The Failure Mechanismsmentioning

confidence: 99%

“…The fracture criterion of brittle materials is usually described by linear elastic fracture mechanics (LEFM), based on the Griffith/Irwin law (Griffith, 1921;Irwin, 1962) but is ineffective in predicting the initiation of a new crack, especially emanating from a notch. An alternative approach to predict the initiation and propagation of surface cracks in ceramic laminates upon thermo-mechanical loading is to use a coupled stress-energy criterion (Leguillon, 2002;Leguillon et al, 2015). It was developed over the last decade within a more general framework baptized Finite Fracture Mechanics (Leguillon, 2002;Martin and Leguillon, 2004;Taylor et al, 2005;Cornetti et al, 2006;Cornetti et al, 2012;Yosibash, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Application of the coupled stress-energy criterion to predict the fracture behaviour of layered ceramics designed with internal compressive stresses

Leguillon

Martín

Ševeček

et al. 2015

European Journal of Mechanics - A/Solids

View full text Add to dashboard Cite

International audienceOne novel approach to improve the apparent toughness of ceramics is to design a multilayer architecture with embedded layers having compressive residual stresses. Surface cracks propagating during mechanical loading can be deflected within the compressive layers, in order to delay the final fracture of the whole structure. The design of high toughness laminates requires understanding the effect of residual stresses on the initiation and propagation of cracks in the material. In this work, a coupled stress-energy criterion is used to predict the initiation and propagation of surface cracks in ceramic laminates upon thermo-mechanical loading. Experiments were conducted on V-notched alumina-based laminates to show the effect of residual stresses and mechanical loading on their fracture behavior. The conditions for crack initiation as predicted for notched specimens agreed with the experimental observations. It is shown that the onset of cracks from V-notches is associated with (i) the tensile residual stresses in the first surface layer and (ii) the depth of the notch. The further propagation of the crack into the first embedded compressive layer was also studied. Based upon the coupled criterion, a short penetration of the propagating crack into the first compressive is foreseen. If the mechanical load is increased, the crack finally deflects within the compressive layer propagating with a certain angle which is also predicted with a good accuracy

show abstract

Section: The Coupled Thermo-elastic Problemmentioning

confidence: 55%

Section: The Tested Specimens and The Failure Mechanismsmentioning

confidence: 87%

Section: The Tested Specimens and The Failure Mechanismsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Application of the coupled stress-energy criterion to predict the fracture behaviour of layered ceramics designed with internal compressive stresses

Leguillon

Martín

Ševeček

et al. 2015

European Journal of Mechanics - A/Solids

View full text Add to dashboard Cite

show abstract

“…Some authors have speculated that this phenomenon may be related to crack bifurcation observed in some laminates with relatively high compressive residual stresses [37,38]. In a recent work, the present authors have applied a stress-energy criterion to set the conditions for edge cracking formation and extension within a particular laminate [39]. However, an understanding of the parameters related to the onset and extension of such edge cracks in the compressive layers is still lacking.…”

Section: Introductionmentioning

confidence: 99%

Modelling of edge crack formation and propagation in ceramic laminates using the stress–energy coupled criterion

Ševeček

Kotoul

Leguillon

et al. 2016

Engineering Fracture Mechanics

Self Cite

View full text Add to dashboard Cite

. Modelling of edge crack formation and propagation in ceramic laminates using the stress-energy coupled criterion. Engineering Fracture Mechanics, Elsevier, 2016, 167, pp.45-55. <10.1016/j.engfracmech.2016 AbstractThe high compressive stresses in ceramic laminates utilized to enhance their fracture resistance may lead to the formation of edge cracks at the surface of the compressive layers. In this work, a 2D parametric numerical model is developed to assess the effect of residual stress and thickness of the compressive layers on the edge crack formation, by using a coupled stress-energy criterion. The results predict the existence of a lower bound, below which no edge crack occurs (i.e. obtaining crack-free laminates), and an upper bound, beyond which onset of the edge crack would lead to the complete delamination of the compressive layer. Keywords:Edge crack, residual stresses, ceramic laminate, FE analysis, coupled criterion.

show abstract

Research Progress of Laminated Composite Ceramic Cutting Tools

Huang

et al. 2023

Adv Eng Mater

View full text Add to dashboard Cite

The design of lamination structure based on bionic shell pearl layer is a successful method for toughening ceramics. Lamination with strong bonding interface have been used to improve the mechanical property and low fracture toughness of ceramic cutting tools. Based on the idea of demand‐design‐preparation‐analysis‐failure, the development and research progress of laminated ceramic tools are reviewed in this paper. The research status of design, interlayer diffusion reaction, residual stress, toughening mechanism and crack propagation path of the biomimetic laminated ceramic composite tool materials are mainly introduced. The major topics of current research include the creation of material systems, the evolution of microstructure, and the assessment of macroscopic mechanical properties. The entire mechanical properties of laminated ceramic tools are significantly influenced by the multi‐composition design of the ceramic material system and the optimization design of structural parameters of layer number and layer thickness ratio. However, the research on the practical cutting application of laminated ceramic tools is limited. Cutting tool wear characteristics vary between laminated and homogeneous ceramic tools. The development of useful laminated ceramic cutting tools can greatly benefit from the study on failure mechanisms of laminated ceramic tools.This article is protected by copyright. All rights reserved.

show abstract

Edge cracking due to a compressive residual stress in ceramic laminates

Cited by 9 publications

References 17 publications

Application of the coupled stress-energy criterion to predict the fracture behaviour of layered ceramics designed with internal compressive stresses

Application of the coupled stress-energy criterion to predict the fracture behaviour of layered ceramics designed with internal compressive stresses

Modelling of edge crack formation and propagation in ceramic laminates using the stress–energy coupled criterion

Research Progress of Laminated Composite Ceramic Cutting Tools

Contact Info

Product

Resources

About