Using finite element and ultrasonic method to evaluate welding longitudinal residual stress through the thickness in austenitic stainless steel plates

Javadi, Yashar; Akhlaghi, Mehdi; Najafabadi, Mehdi Ahmadi

doi:10.1016/j.matdes.2012.09.038

Cited by 112 publications

(103 citation statements)

References 19 publications

(22 reference statements)

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“…The ultrasonic techniques are based on variations in the velocity of ultrasonic waves, which can be related to the residual stress state through the elastic constants of the material [34,44]. Like the magnetic methods, the ultrasonic techniques are sensitive to all three kinds of residual stress, but are not able to distinguish between them.…”

Section: Ultrasonic Methodsmentioning

confidence: 99%

“…Different types of wave can be employed but the commonly used technique is the longitudinal critically refracted (Lcr) wave method [4]. The Lcr wave is an acoustical wave that is excited when the angle of incidence is slightly smaller than the first critical angle, which is calculated from the Snell's law [44,68,69]. It is a bulk longitudinal wave, traveling just below the surface of the specimen.…”

Section: Ultrasonic Methodsmentioning

confidence: 99%

“…HDM was used to validate the results of the ultrasonic technique in investigations on FSW joints of 5086 plates [42], AISI 304 pipes [43] and plates [44]. The example in Figure 4 shows the good correspondence between ultrasonic and HDM residual stress evaluation.…”

Section: Orthogonality and Zeroingmentioning

confidence: 99%

“…So, a lot of research work was done for the evaluation of residual stress in different kinds of welding processes and materials [30,31,[40][41][42][43][44][45] with the final target to find the correct welding parameters and post processing conditions to minimize the residual stress. Some of these works use HDM as validation of nondestructive techniques such as ultrasonic [41][42][43][44][45][46], XRD [30] and neutron diffraction [31]. Pappalettere et al [47][48][49][50][51][52] applied an electronic speckle pattern interferometry (ESPI) method to avoid the use of conventional rosette strain gauges.…”

Section: Orthogonality and Zeroingmentioning

confidence: 99%

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Experimental Techniques to Investigate Residual Stress in Joints

Montanari¹,

Fava²,

Barbieri³

2018

Residual Stress Analysis on Welded Joints by Means of Numerical Simulation and Experiments

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Residual stress arising from welding processes is matter of great concern in industrial practice since it can affect geometry, mechanical behavior and corrosion resistance of components. In order to evaluate residual stress in welded joints and optimize postwelding heat treatments, a lot of work has been devoted to the improvement of measurement methods with increasing sensitivity and accuracy. The chapter presents and discusses some of the experimental techniques commonly used today to determine residual stress in welds and describes recent results and advancements. Destructive (sectioning, contour, hole-drilling, instrumented indentation) and nondestructive (Barkhausen noise, ultrasonic, X-ray and neutron diffraction) methods are illustrated to highlight the specific characteristics, advantages and drawbacks.

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Section: Ultrasonic Methodsmentioning

confidence: 99%

Section: Ultrasonic Methodsmentioning

confidence: 99%

Section: Orthogonality and Zeroingmentioning

confidence: 99%

Section: Orthogonality and Zeroingmentioning

confidence: 99%

See 2 more Smart Citations

Experimental Techniques to Investigate Residual Stress in Joints

Montanari¹,

Fava²,

Barbieri³

2018

Residual Stress Analysis on Welded Joints by Means of Numerical Simulation and Experiments

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“…2a the wave propagates parallel to the load and V 11 represents the velocity of the particles in the same direction (longitudinal wave), meanwhile V 12 and V 13 represents the velocity in a perpendicular plane (shear waves).…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Evaluation of hoop residual stress variations in the thickness of dissimilar welded pipes by using the LCR ultrasonic waves

2016

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Original scientific paper Stress measurement by using ultrasonic waves is based on acoustoelasticity law, i. e. the relation between stress and wave velocity in engineering materials. Longitudinal critically refracted (LCR) wave is a popular ultrasonic wave in the ultrasonic stress measurement application. The LCR wave is a bulk longitudinal wave that travels within an effective depth underneath the surface. This paper evaluates hoop residual stress variation in the thickness of a pipe. The pipe is manufactured by welding two dissimilar pipes from AISI stainless steel 304 and carbon steel A106-B type. The residual stresses variations in the thickness of pipe are measured by using four different frequencies of transducers while the nominal frequencies are 1 MHz, 2 MHz, 4 MHz and 5 MHz. Using different frequencies enables the LCR waves to penetrate in different depths and measure the bulk stresses of pipe. It has been shown that the stress difference between inner and outer surfaces of pipes and also between the stainless steel and carbon steel side of dissimilar pipe can be evaluated by using the LCR waves.Keywords: acoustoelastic effect; dissimilar welded joint; LCR wave; ultrasonic stress measurement; welding residual stress Ocjena varijacija cirkularnih zaostalih naprezanja u debljini različito zavarenih cijevi pomoću LCR ultrazvučnih valovaIzvorni znanstveni članak Mjerenje naprezanja pomoću ultrazvučnih valova temelji se na akustičnoelastičnom zakonu, t.j.odnosu između naprezanja i brzine valova u inženjerskim materijalima. Uzdužni kritički lomljen -Longitudinal critically refracted (LCR) val je popularni ultrazvučni val u primjeni ultrazvučnog mjerenja naprezanja. LCR val je masovni uzdužni val koji putuje na efektivnoj dubini ispod površine. U ovom radu procjenjuje se varijacija cirkularnog zaostalog naprezanja u debljini cijevi. Cijev je proizvedena zavarivanjem dviju različitih cijevi od nehrđajućeg čelika AISI 304 i ugljičnog čelika tipa A106-B. Varijacije zaostalih naprezanja u debljini cijevi mjere se pomoću četiri različite frekvencije pretvarača, dok su nominalne frekvencije 1 MHz, 2 MHz, 4 MHz i 5 MHz. Uporabom različitih frekvencija omogućeno je LCR valovima da prodru do različitih dubina i mjere veličinu naprezanja cijevi. Pokazalo se da se razlika u naprezanju između unutarnje i vanjske površine cijevi i također između strane cijevi od nehrđajućeg čelika i one od ugljičnog čelika može procijeniti pomoću LCR valova.Ključne riječi: akustičnoelastični učinak; različito zavaren spoj; LCR val; ultrazvučno mjerenje naprezanja; zaostalo naprezanje kod zavarivanja

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Residual Stress in Engineering Materials: A Review

et al. 2021

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The accurate determination of residual stresses has a crucial role in understanding the complex interactions between microstructure, mechanical state, mode(s) of failure, and structural integrity. Moreover, the residual stress management concept contributes to industrial applications, aiming to improve the product's service performance and life cycle. In this regard, the industry requests rapid, efficient, and modern methods to identify and control the residual stress state. This review article contains three main sections. The first section covers different residual stress determination methods and reports the advancements over the recent decade. The second section includes the role of residual stresses in the performance of a broad range of materials including metallic alloys, polymers, ceramics, composites, and biomaterials. This is presented by classifying different science areas dealing with residual stresses into two main groups, including “origins” and “effects” of residual stresses. The range of topics covered are “welding, machining, curing/cooling, and spray coating processes,” “medical and dental sciences,” and “fatigue and fracture mechanisms.” The third section summarizes various strategies to effectively control residual stresses through different manufacturing procedures. It is hoped that the data provided herein serves as a valuable up‐to‐date reference for engineers and scientists in the field of residual stress.

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Using finite element and ultrasonic method to evaluate welding longitudinal residual stress through the thickness in austenitic stainless steel plates

Cited by 112 publications

References 19 publications

Experimental Techniques to Investigate Residual Stress in Joints

Experimental Techniques to Investigate Residual Stress in Joints

Evaluation of hoop residual stress variations in the thickness of dissimilar welded pipes by using the LCR ultrasonic waves

Residual Stress in Engineering Materials: A Review

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