Assessment of residual stresses and mechanical characterization of materials by “hole drilling” and indentation tests combined and by inverse analysis

Buljak, Vladimir; Cocchetti, Giuseppe; Cornaggia, Aram; Maier, G.

doi:10.1016/j.mechrescom.2015.02.003

Cited by 16 publications

(10 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While the major advantage with the method at issue is simplicity (residual stresses can be explicitly determined from a single simple relation), the limited variation of the hardness due to residual stresses (in particular then in the presently investigated uniaxial case) makes it impossible to achieve acceptable accuracy at determination of such quantities. An attractive and more advanced alternative in such a case could be to rely on indentation experiments in combination with inverse analysis (Ref [9][10][11]. This can be particularly advantageous if indentation is combined with other standard methods for residual stress determination such as hole drilling (Ref 11 27).…”

Section: Resultsmentioning

confidence: 99%

On the Variation of Hardness Due to Uniaxial and Equi-Biaxial Residual Surface Stresses at Elastic–Plastic Indentation

Larsson

2018

J. of Materi Eng and Perform

View full text Add to dashboard Cite

It is established long since that the material hardness is independent of residual stresses at predominantly plastic deformation close to the contact region at indentation. Recently though, it has been shown that when elastic and plastic deformations are of equal magnitude this invariance is lost. For materials such as ceramics and polymers, this will complicate residual stress determination but can also, if properly understood, provide additional important information for performing such a task. Indeed, when the residual stresses are equi-biaxial, the situation is quite well understood, but additional efforts have to be made to understand the mechanical behavior in other loading states. Presently therefore, the variation of hardness, due to residual stresses, is examined at a uniaxial stress state. Correlation with global indentation quantities is analyzed, discussed and compared to corresponding equi-biaxial results. Cone indentation of elastic-perfectly plastic materials is considered.

show abstract

Section: Resultsmentioning

confidence: 99%

On the Variation of Hardness Due to Uniaxial and Equi-Biaxial Residual Surface Stresses at Elastic–Plastic Indentation

Larsson

2018

J. of Materi Eng and Perform

View full text Add to dashboard Cite

show abstract

“…In our previous work, methods to determine elastic-plastic parameters for three typical constitutive models by instrumented spherical indentation had been developed. [9][10][11] Based on the spherically symmetric assumption in the expanding cavity model (ECM) [13] (see Fig. 2) and the Lamé's elastic solution, the equations of total loading work (W t ) and unloading work (W u ) were derived.…”

Section: Methods To Determine Elastic-plastic Parameters For Three Tymentioning

confidence: 99%

“…A number of theoretical and semi-theoretical methods have been developed. [1][2][3][4][5][6][7][8][9][10] In most of these studies, the linear elastic power-law hardening constitutive model was generally adopted. In fact, however, the stress-strain behaviors of many metals are better described by the linear elastic and perfectly plastic constitutive model or the linear elastic linear hardening constitutive model (see Fig.…”

Section: Introductionmentioning

confidence: 99%

Identification of the elastic–plastic constitutive model for measuring mechanical properties of metals by instrumented spherical indentation test

Zhang

Peng

et al. 2017

MRS Communications

View full text Add to dashboard Cite

show abstract

“…If the hardness is higher than the hardness of the material after processing, it indicates that a compressive residual stress is present on its surface. If lesser, then tensile residual stresses are present [11][12][13]. In this study, a milled operation is done after a gas metal arc welded, to increase the surface nishing of the welded part.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Residual Stress on Steel Parts Welded and Milled

Neves¹,

Moreira²,

Silva³

2018

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Welded parts are common in mechanical engineering. As all manufactured parts, they also present residual stresses introduced by the corresponding manufacturing process. Residual stresses can be beneficial or not because they can increase or reduce the useful life of the mechanical components, particularly when they are subjected to a cyclic stress in which they can fail by fatigue. In this study, SAE 1045 steel samples were welded by metal inert gas process, varying the speed and welding current. The welded samples were thereafter milled, including the welded region. Residual stresses on material as received, welded, and welded and subsequently milled were evaluated through the microhardness method. A factorial statistical design was used, and the results were studied by analysis of variance. It can be concluded that, in general, welding introduces compressive residual stresses which are improved by posterior milling operation, and there is an optimal set of operating parameters for this condition.

show abstract

Assessment of residual stresses and mechanical characterization of materials by “hole drilling” and indentation tests combined and by inverse analysis

Cited by 16 publications

References 14 publications

On the Variation of Hardness Due to Uniaxial and Equi-Biaxial Residual Surface Stresses at Elastic–Plastic Indentation

On the Variation of Hardness Due to Uniaxial and Equi-Biaxial Residual Surface Stresses at Elastic–Plastic Indentation

Identification of the elastic–plastic constitutive model for measuring mechanical properties of metals by instrumented spherical indentation test

Evaluation of Residual Stress on Steel Parts Welded and Milled

Contact Info

Product

Resources

About