Estimation of biaxial surface stress by instrumented indentation with sharp indenters

Lee, Yun-Hee; Kwon, Dongil

doi:10.1016/j.actamat.2003.12.006

Cited by 175 publications

(79 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, Tsui et al [15] and Suresh Giannakopoulos [17] did not show the variation of indentation load-displacement curves with residual stress (which is required for analyzing the indentation work in this study); while Swadener et al [18] have used spherical indenters. Some materials that have been used in experiments have either significant strain hardening [20] (for low-carbon steel) or strain gradient effect at small indentation depth [19] (for single crystal tungsten), which leads to a normalized hardness far above 3 and thus does not apply to the present investigation. Some others only involve uniaxial residual stress instead of biaxial stress [22,25], or excessive substrate effect for indentation on biaxially stressed thin films [26].…”

Section: Reverse Analysis and Examplesmentioning

confidence: 82%

“…Unlike many of the previous studies [17][18][19][20], the new indentation technique proposed in this paper does not require a reference stress-free material for comparison purposes. Thus, this method has the potential to map the residual stress field on the surface of a specimen quickly and effectively.…”

Section: Resultsmentioning

confidence: 99%

“…Based on the assumption that the hardness is unaffected by tensile or compressive elastic residual stress, several general methods was proposed for determining the in-plane equi-biaxial residual stress by conical or spherical indentation. Most approaches compare the contact depth (or contact area, or load-displacement curve) of the stressed and unstressed specimens, from which σ res can be estimated [17][18][19][20]. In some other studies [21,22], the residual compression was seen to enhance the pile-up and residual tension reduced δ p .…”

Section: The Effect Of In-plane Residual Stressmentioning

confidence: 99%

See 2 more Smart Citations

On the determination of residual stress and mechanical properties by indentation

Chen

Jin

Karlsson

2006

Materials Science and Engineering: A

185

View full text Add to dashboard Cite

Section: Reverse Analysis and Examplesmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Section: The Effect Of In-plane Residual Stressmentioning

confidence: 99%

See 1 more Smart Citation

On the determination of residual stress and mechanical properties by indentation

Chen

Jin

Karlsson

2006

Materials Science and Engineering: A

185

View full text Add to dashboard Cite

“…Although indentation techniques have been used to measure local mechanical properties, especially the hardness of materials 1) , the instrumental indentation technique (IIT) has recently attracted attention as a semi-destructive method for measuring the yield stress 2) , Young's modulus 3) , the true stress-true strain relation 4) , or the residual stress 5,6) . Improvements in indentation machines and computers have enabled the measurement of load-depth curves by IIT.…”

Section: Introductionmentioning

confidence: 99%

Semi-destructive Method for Evaluation of Local Mechanical Properties in the Notch-Tip Region using an Indentation Technique

Miyabe

Iyota

Okano

et al. 2013

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY

View full text Add to dashboard Cite

In the present study, a semi-destructive method for estimating the mechanical properties, including plastic strain, of materials was developed using the instrumental indentation technique (IIT). The formula for estimating plastic strain was derived using true stress-true strain curves that were measured by IIT. The developed method requires only one parameter, namely, the work hardening coefficient, for estimating the plastic strain of pre-strained materials. The usefulness of the developed method was evaluated using pre-strained specimens. The dimension of the plastic strain estimated using the developed method generally agrees with the dimension of the plastic strain of the pre-strained materials. The developed method was used to evaluate the distribution of plastic strain in the notched region of pre-strained materials. The distributions of plastic strain estimated by the developed method were validated by comparison with FE simulation results. The results indicate that the distribution of plastic strain can be estimated conveniently using the developed method.

show abstract

“…Some of them have tried to use this technique to measure residual stresses in bulk materials experimentally and analytically. Most notables of them who used experimental technique are Swadner, Tsui, Carlsson, Lee [7][8][9][10][11][12] and the one who used analytical technique are Bolshakov, Carlsson and Chen [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Effect of Bi-axial Residual Stresses on the Micro-Indentation Behaviour of Bulk Materials

Jadhav¹

2017

IJET

View full text Add to dashboard Cite

Residual stresses can be of great importance in bulk materials and coatings with respect to their effect on the mechanical integrity and reliability. High residual stresses cause degradation of mechanical properties and challenge the reliability (fatigue, fracture, corrosion and wear) of the bulk materials and coatings. Compared to traditional techniques, the depth-sensing indentation technique provides a quick and effective method to measure in-plane residual stresses. Literature shows that contact hardness, stiffness and indentation work (obtained from indentation load-displacement curves) are sensitive to the residual stress. A new experimental technique to verify the numerical simulations is presented here. It involves conducting measurements of residual stresses using depth sensing micro-indentation and studying its effect on the load-displacement behaviour. A special bi-axial loading fixture is designed and developed to apply controlled biaxial tensile/compressive stresses on the specimen simulating in-plane residual stresses. In-plane residual stresses are measured using strain measurement system. Instrumented micro-indentation system is used to obtain the load-displacement behaviour for variable biaxial loading on the specimen. It has been shown here that residual stress field affects the indentation behaviour of the bulk materials.

show abstract

Estimation of biaxial surface stress by instrumented indentation with sharp indenters

Cited by 175 publications

References 22 publications

On the determination of residual stress and mechanical properties by indentation

On the determination of residual stress and mechanical properties by indentation

Semi-destructive Method for Evaluation of Local Mechanical Properties in the Notch-Tip Region using an Indentation Technique

Effect of Bi-axial Residual Stresses on the Micro-Indentation Behaviour of Bulk Materials

Contact Info

Product

Resources

About