### evaluation of yield strength by ultrasonic reconstruction

Evaluation of yield strength by ultrasonic reconstruction ...Jun 01, 2020 · A method to evaluate the yield strength from the ultrasonic measurements was proposed. • The quadratic nonlinear stress-strain curve was reconstructed based on the ultrasonic measurements. • The 0.01% offset method was adopted to determine the yield strength. • The estimated yield strength is in good agreement with the tensile test result. •

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### Trial Evaluating Postop Pain and Muscle Strength Among evaluation of yield strength by ultrasonic reconstruction

Espelund M, Fomsgaard JS, Haraszuk J, Mathiesen O, Dahl JB. Analgesic efficacy of ultrasound-guided adductor canal blockade after arthroscopic anterior cruciate ligament reconstruction: a randomised controlled trial. Eur J Anaesthesiol. 2013 Jul;30(7):422-8. doi: 10.1097/EJA.0b013e328360bdb9.The use of the ultrasound measurement technique for the evaluation of yield strength by ultrasonic reconstructionA maximum deviation of 13 MPa on the values of tensile strength and yield point from the linear regression through the measure of the material acoustic velocity represents that this method can be considered, with further studies, as a method of non-destructive test for the measurement of mechanical properties of steels.Surface, Near-Surface and Volume Inspection of Cast evaluation of yield strength by ultrasonic reconstructionThe major difficulty for ultrasonic inspection of cast bronzes is due to the elastic properties of these materials, since the coarsegrained - microstructures lead to a strong attenuation of the ultrasonic waves and thus to weak signals. Additionally, the generation of ultrasound is strongly influenced by the complex shape of the propeller surface.

### State of the Art in Abdominal CT: The Limits of Iterative evaluation of yield strength by ultrasonic reconstruction

Oct 29, 2019 · Saiprasad G, Filliben J, Peskin A et al. Evaluation of Low-Contrast Detectability of Iterative Reconstruction across Multiple Institutions, CT Scanner Manufacturers, and Radiation Exposure Levels. Radiology 2015 ;277(1):124133.Research Article Evaluation of Ultrasonic Nonlinear evaluation of yield strength by ultrasonic reconstruction300 C yield strength and elongation (b) 0 5 10 20 100 150 200 250 300 Heat hour (h) Yield strength (MPa) 50 0.5 0.75 1 1.25 1.5 Elongation (%) Yield strength Elongation 350 C yield strength and elongation (c) F : Yield strength and elongation obtained from the result of the tensile test for three heating temperatures: (a) C, (b) C, and (c) C.Quantitative evaluation of yield strength degradation by evaluation of yield strength by ultrasonic reconstructionMar 01, 2018 · This method can be used to evaluate the degradation of yield strength quantitatively in isotropic material. Although the ultrasonic nonlinearity has been studied to evaluate the material degradation, it does not tell intuitively about the degree of material degradation so that the yield strength obtained from the destructive tensile test is still widely used.

### Quantitative evaluation of yield strength degradation by evaluation of yield strength by ultrasonic reconstruction

Jun 01, 2018 · This study proposed a new algorithm to measure the linear and nonlinear elastic moduli based on the linear and nonlinear ultrasonic techniques, which is reduced to estimate the 0.01% offset yield strength by through the reconstruction of the tensile stress-strain curve in the form of quadratic polynomial within the elastic range.Prof. Kyung-Young Jhang Profile - SPIE Digital LibraryQuantitative evaluation of yield strength degradation by using nonlinear ultrasonic techniques Jongbeom Kim , Kyung-Young Jhang , Dong-Gi Song , Chang-Soo Kim Proc. SPIE. 10600, Health Monitoring of Structural and Biological Systems XIIPotential new approaches to ultrasonic quantitative NDE evaluation of yield strength by ultrasonic reconstructionmaterial properties (yield and tensile strength, fracture toughness) are known [2] as well as the probability of detection of an individual defect [3] the failure assess diagram allows the probabilistic prediction of the risk of failure. Keywords: Inservice inspection, high speed, online and real time reconstruction, sampling

### Potential new approaches to ultrasonic quantitative NDE evaluation of yield strength by ultrasonic reconstruction

material properties (yield and tensile strength, fracture toughness) are known [2] as well as the probability of detection of an individual defect [3] the failure assess diagram allows the probabilistic prediction of the risk of failure. Keywords: Inservice inspection, high speed, online and real time reconstruction, samplingNondestructive evaluation of hidden multi-delamination in evaluation of yield strength by ultrasonic reconstructionNov 15, 2016 · In this study, a terahertz time-domain spectroscopy (THz-TDS) imaging system was devised to detect hidden multi-delamination in a glass-fiber-reinforced plastic (GFRP) composite laminates.Shapes, thicknesses and locations in the z-direction of each delamination among the overlapped multi-delamination were analyzed considering the interaction between the pulsed THz Non-Invasive Assessment Of Bone Strength And Density strength averaged 415±100 MPa for bulk modulus, 16.5±6.7 MPa for yield strength and 18.6±6.9 MPa for ultimate stress. Ultrasound scanning was capable of predicting the bones quality parameters via multiple correlations. Table 1 shows the overall correlation coefficients. While there are

### Non-destructive evaluation of the yield stress for low evaluation of yield strength by ultrasonic reconstruction

Sep 24, 2013 · The non-destructive evaluation method for yield stress assessment in low carbon steels based on ultrasonic measurements of the longitudinal and transversal velocities and the longitudinal attenuation coefficient is proposed. First, the mean grain size $\bar D$ is calculated from the measured acoustic parameters and then the yield strength is estimated from these three parameters using the Non-destructive evaluation of the yield stress for low evaluation of yield strength by ultrasonic reconstructionSep 24, 2013 · The non-destructive evaluation method for yield stress assessment in low carbon steels based on ultrasonic measurements of the longitudinal and transversal velocities and the longitudinal attenuation coefficient is proposed. First, the mean grain size $\bar D$ is calculated from the measured acoustic parameters and then the yield strength is estimated from these three parameters using the Non-destructive Testing for Light-weighting of Ultrasonic Probe Evaluation of surface hardening depth by ultrasonic reflection - principle evaluation of yield strength by ultrasonic reconstruction Semi-automated system 3MA system Mechanical properties as hardness, case depth, yield strength, residual or load stress state are correlated to the micromagnetic and evaluation of yield strength by ultrasonic reconstruction Image analysis and evaluation by improved reconstruction algorithms evaluation of yield strength by ultrasonic reconstruction

### NDT & E International | Vol 112, June 2020 | ScienceDirect evaluation of yield strength by ultrasonic reconstruction

Evaluation of yield strength by ultrasonic reconstruction of quadratic nonlinear StressStrain curve Jongbeom Kim, Chang-Soo Kim, Kyung-Cho Kim, Kyung-Young Jhang Article 102242Kyung Young Jhang Hanyang UniversityEvaluation of yield strength by ultrasonic reconstruction of quadratic nonlinear StressStrain curve Kim, J., Kim, C. S., evaluation of yield strength by ultrasonic reconstruction Nondestructive evaluation of thermal aging in Al6061 alloy by measuring acoustic nonlinearity of laser-generated surface acoustic waves evaluation of yield strength by ultrasonic reconstruction yield strength. tensile tests.Introduction to Ultrasonic TestingBasic Principles of Ultrasonic Testing. Ultrasonic Testing (UT) uses high frequency sound energy to conduct examinations and make measurements. Ultrasonic inspection can be used for flaw detection/evaluation, dimensional measurements, material characterization, and more.

### In-Field NDT for Yield Stress, Tensile Strength, Residual evaluation of yield strength by ultrasonic reconstruction

AIS series of instrumented indentation nondestructive NDT inspection machines test mechanical properties, such as tensile strength, yield stress, residual stress, and fracture toughness of materials from micro/nano dimensions to large metal structures. Equipment allows to measure wall thickness.. AIS non-destructive NDT inspection and testing machinery is used to inspect natural gas pipes and evaluation of yield strength by ultrasonic reconstructionFragment reconstruction of coronary arteries using evaluation of yield strength by ultrasonic reconstructionAims: Ultrasound differs procedurally from the established methods for non-invasive coronary visualization and is therefore an interesting alternative for non-invasive diagnostics. In this study, fragment reconstruction of coronary arteries by transesophageal echocardiography (FRC-TEE) was investigated for the first time in a patient population being evaluated for coronary angiography.Fragment reconstruction of coronary arteries using evaluation of yield strength by ultrasonic reconstructionAims: Ultrasound differs procedurally from the established methods for non-invasive coronary visualization and is therefore an interesting alternative for non-invasive diagnostics. In this study, fragment reconstruction of coronary arteries by transesophageal echocardiography (FRC-TEE) was investigated for the first time in a patient population being evaluated for coronary angiography.

### Evaluation of yield strength by ultrasonic reconstruction evaluation of yield strength by ultrasonic reconstruction

title = "Evaluation of yield strength by ultrasonic reconstruction of quadratic nonlinear StressStrain curve", abstract = "The ultrasonic nonlinearity parameter defined by the ratio of the second-order harmonic amplitude to the square of fundamental frequency amplitude, has been considered as a potential index to evaluate material degradation.Evaluation of yield strength by ultrasonic reconstruction evaluation of yield strength by ultrasonic reconstructionJun 01, 2020 · A method to evaluate the yield strength from the ultrasonic measurements was proposed. The quadratic nonlinear stress-strain curve was reconstructed based on the ultrasonic measurements. The 0.01% offset method was adopted to determine the yield strength. The estimated yield strength is in good agreement with the tensile test result. Evaluation of material degradation using phased array evaluation of yield strength by ultrasonic reconstructionThe attenuation of ultrasonic shear waves was relatively constant for yield strength values >460 MPa, but increased in a linear manner from 0.24 dB/mm to a value of 0.36 dB/mm as the yield evaluation of yield strength by ultrasonic reconstruction

### Ultrasonic inspection of multi-wire steel strands with the evaluation of yield strength by ultrasonic reconstruction

Jun 29, 2005 · The result of averaging the raw ultrasonic measurements 500 times was the comparison signal. The filter associated with D 6 in figure 2(c) appears to yield the best reconstruction given the close resemblance with the averaged result in figure 2(a). Levels 15 will merely reconstruct noise, so they are eliminated in the pruning process.Ultrasonic Imaging of Concrete Elements Using evaluation of yield strength by ultrasonic reconstructionUltrasonic reconstruction by the synthetic aperture focusing technique (SAFT) has a great potential to image concrete elements and detect embedded objects.Ultrasonic 3-D Reconstruction of Inclusions in Solids evaluation of yield strength by ultrasonic reconstructionJan 1st, 12:00 AM. Ultrasonic 3-D Reconstruction of Inclusions in Solids Using the Inverse Born Algorithm. La Jolla, CA. Considerable progress has been made in recent years in the development of signal processing algorithms for use in ultrasonic non-destructive evaluation which yield the size, shape, and orientation of a flaw.

### Ultrasonic 3-D Reconstruction of Inclusions in Solids evaluation of yield strength by ultrasonic reconstruction

ULTRASONIC 3-D RECONSTRUCTION OF INCLUSIONS IN SOLIDS USING THE INVERSE BORN ALGORITHM D.K. Hsu*, James H. Rose, and D.O. Thompson evaluation of yield strength by ultrasonic reconstruction development of signal processing algorithms for use in ultrasonic non-destructive evaluation which yield the size, shape, and orien­ evaluation of yield strength by ultrasonic reconstruction the strength and sharpness of the resonance must also beStructural Strength Assessment of Civil Infrastructure1.Abstract. Structural strength assessment of civil infrastructure is a prior concern to the engineers. This paper presents laboratories study as well as on site study data analysis gathered by many authors, critical review of existing nondestructive testing (NDT) methods.Prof. Kyung-Young Jhang Profile - SPIE Digital LibraryQuantitative evaluation of yield strength degradation by using nonlinear ultrasonic techniques Jongbeom Kim , Kyung-Young Jhang , Dong-Gi Song , Chang-Soo Kim Proc. SPIE. 10600, Health Monitoring of Structural and Biological Systems XII

### Predictive Maintenance of Fiberglass Reinforced

Strength Fraction" 9. The Normalized Strength Fraction is compared to the PDS from the ultrasonic analysis. An example of the calculation process is shown in Table 1 below: Table 1 Design Flexural Modulus (psi) Thickness (in) ASTM D790 Modulus (psi) Normalized Strength Fraction Ultrasonic PDS 2,229,406 1.891 1,342,000 0.602 0.604Flaw Reconstruction TechniquesFlaw Reconstruction Techniques. In nondestructive evaluation of structural material defects, the size, shape, and orientation are important flaw parameters in structural integrity assessment. To illustrate flaw reconstruction, a multiviewing ultrasonic transducer system is shown below. A single probe moved sequentially to achieve different evaluation of yield strength by ultrasonic reconstructionExperimental evaluation of mechanical properties of evaluation of yield strength by ultrasonic reconstructionFull Article. Experimental Evaluation of Mechanical Properties of Softwood using Acoustic Methods. Jan Tippner, a, * Jaroslav Hrivnák, b and Michal Kloiber c This paper presents an evaluation of the acoustic ultrasound and stress wave methods for investigating the mechanical properties of wood and the factors that can affect the results, such as the type of device used, the wood species evaluation of yield strength by ultrasonic reconstruction

### Evaluation of an Ultrasonic Method for Damage evaluation of yield strength by ultrasonic reconstruction

Jan 11, 2020 · An intact rock specimen, when subjected to uniaxial compression, experiences multiple stages of deformation. This begins with the nucleation of microcracks at low stresses (crack initiationCI) and their subsequent transition into unstable crack propagation (crack damageCD) close to the ultimate strength. In the present study, an active ultrasonic monitoring method was used during evaluation of yield strength by ultrasonic reconstructionEvaluation of Ultrasonic Nonlinear Characteristics in Heat evaluation of yield strength by ultrasonic reconstructionThe nonlinear ultrasonic technique has been known to be more sensitive to minute variation of elastic properties in material than the conventional linear ultrasonic method. In this study, the ultrasonic nonlinear characteristics in the heat-treated aluminum alloy (Al-Mg-Si-Cu) have been evaluated. For this, the specimens were heat treated for various heating period up to 50 hours at three evaluation of yield strength by ultrasonic reconstructionEVALUATION OF LAMINATED VENEER LUMBER TENSILE Abstract. Nondestructive commercial ultrasonic grading provides laminated veneer lumber (LVL) manufacturers a means for sorting veneer based on average ultrasonic propagation time (UPT) and/or average dynamic modulus of elasticity (MOE d). However, little is known about the influence of veneer defects on strength properties of veneer and LVL.

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