Experimental verification of optimal strain gage locations for the accurate determination of mode I stress intensity factors

Sarangi, Hrushikesh; Murthy, K.S.R.K.; Chakraborty, Debabrata

doi:10.1016/j.engfracmech.2013.07.014

Cited by 24 publications

(10 citation statements)

References 31 publications

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“…For the Mode-I plane stress experimental fracture, Sarangi et al (2013) suggested that the stress intensity factor can be given by…”

Section: Experimental Studymentioning

confidence: 99%

“…Single strain gage technique (DC technique) (Dally and Sanford, 1987) had been utilized to calculate Mode-I stress intensity factor. To avoid the effects of the strain gradient, threedimensionality and plasticity, the strain location was chosen relatively far from the crack front (Sarangi et al, 2013). The optimum radial location of the strain gage, r, was found using the approach proposed by Sarangi et al (2010Sarangi et al ( , 2013.…”

Section: Equipmentmentioning

confidence: 99%

“…To avoid the effects of the strain gradient, threedimensionality and plasticity, the strain location was chosen relatively far from the crack front (Sarangi et al, 2013). The optimum radial location of the strain gage, r, was found using the approach proposed by Sarangi et al (2010Sarangi et al ( , 2013. Gage length of 1 mm was employed to eliminate the strain measure error (Berger and Dally, 1988;Younis and Kang, 2011).…”

Section: Equipmentmentioning

confidence: 99%

“…Gage length of 1 mm was employed to eliminate the strain measure error (Berger and Dally, 1988;Younis and Kang, 2011). For the Mode-I plane stress experimental fracture, Sarangi et al (2013) suggested that the stress intensity factor can be given by…”

Section: Equipmentmentioning

confidence: 99%

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Experimental and numerical analysis of piezoelectric active repair of edge-cracked plate

Abuzaid

Hrairi

Dawood

2018

Journal of Intelligent Material Systems and Structures

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This article proposes an alternative model for active repair for an edge-cracked plate with adhesively bonded piezoelectric actuator. It computes the Mode-I stress intensity factor (SIF) produced by the piezoelectric actuators using appropriate derived geometrical weight functions. Furthermore, this article presents an experimental study to verify the proposed analytical model and the finite element analysis using ANSYS software. Therefore, the analytical, finite element and experimental results for Mode-I opening of the crack conditions are demonstrated. Parametric analysis to understand the influence and to study the efficiency of the piezoelectric actuator on mitigation of the Mode-I SIF was conducted. The obtained analytical solution is applicable in the calculation of Mode-I SIF with reasonable accuracy. The result indicated that the maximum reduction of SIF is achieved with the application of high external voltage and thin thickness actuator. The relative errors of the analytical model and the experimental results are less than 10% in all the cases studied in this article.

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“…For the Mode-I plane stress experimental fracture, Sarangi et al (2013) suggested that the stress intensity factor can be given by…”

Section: Experimental Studymentioning

confidence: 99%

Section: Equipmentmentioning

confidence: 99%

Section: Equipmentmentioning

confidence: 99%

Section: Equipmentmentioning

confidence: 99%

See 2 more Smart Citations

Experimental and numerical analysis of piezoelectric active repair of edge-cracked plate

Abuzaid

Hrairi

Dawood

2018

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

show abstract

“…The accuracy in the determination of the SIF depends on the gage location and orientation relative to the crack tip. Thanks to its simplicity and efficiency, this technique has been widely used by many researchers [19][20][21][22][23][24][25][26][27] for determination of mode I SIF in different contexts.…”

Section: Introductionmentioning

confidence: 99%