Effects of composite lamina properties on fundamental Lamb wave mode dispersion characteristics

Pant, Shashank; Laliberté, Jeremy; Martinez, Marcias; Rocha, Bruno; Ancrum, Derek B.

doi:10.1016/j.compstruct.2015.01.017

Cited by 37 publications

(16 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is consistent with the results of Ref. [37]. (ii) A defect signal extraction circuit was designed, which greatly reduced the amount of data acquired and improved the data processing speed.…”

Section: Discussionsupporting

confidence: 89%

“…Pant et al [37] analyzed the influence of material properties, such as E 11 (axial elastic modulus), E 22 (transversal elastic modulus), G 12 (plane shear modulus), and ρ (density), on Lamb wave propagation/dispersion of three kinds of composite laminates. These composite laminates are unidirectional, cross-layered, and quasi-isotropic, which are all composed of 16 layers of unidirectional carbon fiber epoxy prepreg.…”

Section: Characteristics Of Lamb Wavesmentioning

confidence: 99%

See 1 more Smart Citation

The Rapid Detection Technology of Lamb Wave for Microcracks in Thin-Walled Tubes

Wang

Yang

2019

Applied Sciences

View full text Add to dashboard Cite

Thin-walled tubes are a kind of pressure vessel formed by a stamping and drawing process, which must withstand a great deal of sudden pressure during use. When microcrack defects of a certain depth are present on its inner and outer surfaces, severe safety accidents may occur, such as cracking and crushing. Therefore, it is necessary to carry out nondestructive testing of thin-walled tubes in the production process to eliminate the potential safety hazards. To realize the rapid detection of microcracks in thin-walled tubes, this study could be summarized as follows: (i) Because the diameters of the thin-walled tubes were much larger than their thicknesses, Lamb wave characteristics of plates with equal thicknesses were used to approximate the dispersion characteristics of thin-walled tubes. (ii) To study the dispersion characteristics of Lamb waves in thin plates, the detection method of the A 0 mode was determined using the particle displacement-amplitude curve. (iii) Using a multi-channel parallel detection method, rapid detection equipment for Lamb wave microcracks in thin-walled tubes was developed. (iv) The filtering peak values for defect signal detection with different depths showed that the defect detection peak values could reflect the defect depth information. (v) According to the minimum defect standard of a 0.045-mm depth, 100,000 thin-walled tubes were tested. The results showed that the missed detection rate was 0%, the reject rate was 0.3%, and the detection speed was 5.8 s/piece, which fully meets the actual detection requirements of production lines. Therefore, this study not only solved the practical issues for the rapid detection of microcracks in thin-walled tubes but also provided a reference for the application of ultrasonic technology for the detection of other components. Appl. Sci. 2019, 9, 3576 2 of 15 quantitatively, which can easily lead to misjudgment [10]. Magnetic particle testing is more suitable for surface defect detection, and it is difficult to quantitatively detect the depth of a flaw [10]. The X-ray method is mainly used to detect the volume of the defect inside the object. For an area defect, there will be an overlap of the front and back, and the angle between the ray beam and the orientation of the crack cannot exceed 10 • ; otherwise, it cannot be detected [10]. Penetration detection is limited to the defects of the surface opening. The penetrating liquid pollutes the parts and the environment and is not suitable for on-line detection [10]. Ultrasonic testing is sensitive to the area of the defect inside the object and can locate the relative size and location of the defect. The detection depth is much greater than other detection methods, and thus, it has been widely used [10]. For thin-walled tubes, ultrasonic Lamb waves are usually used for testing [11].The ultrasonic detection principle of thin-walled tubes is the same as that of pipe, and there are many studies on the principle, method, and application of Lamb wave detection of pipe for reference. Therefore, based...

show abstract

Section: Discussionsupporting

confidence: 89%

Section: Characteristics Of Lamb Wavesmentioning

confidence: 99%

The Rapid Detection Technology of Lamb Wave for Microcracks in Thin-Walled Tubes

Wang

Yang

2019

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…The algorithm for a transversely isotropic material was verified on a previously researched composite laminate (Cytec G40-800/5276-1) with known stiffness properties provided in Table 1 [13]. The QL and QT phase velocities were calculated analytically using Eqn.…”

Section: Sensitivity Analysis For Transversely Isotropic Materialsmentioning

confidence: 99%

In-Situ Characterization of Isotropic and Transversely Isotropic Elastic Properties Using Ultrasonic Wave Velocities

Pant

Laliberté²,

Martinez

et al. 2016

Materials Performance and Characterization

Self Cite

View full text Add to dashboard Cite

In this paper a one-sided, in-situ method based on the time of flight measurement of ultrasonic waves is described. The primary application of this technique is to non-destructively measure the stiffness properties of isotropic and transversely isotropic materials. The method consists of generating and receiving quasi-longitudinal and quasi-shear waves at different through-thickness propagation angles. First, the analytical equations are provided to calculate the ultrasonic wave velocities. Then, an inverse method based on non-linear least square technique is used to calculate the stiffness constants using the ultrasonic wave velocities. Sensitivity analysis is performed by randomly perturbing the velocity data, thus observing the effects of perturbations on the calculated stiffness constants. An improved algorithm is proposed and tested to reduce the effects of random errors. Based on the sensitivity analysis, minimum number of angles required to inversely calculate the stiffness constants are suggested for isotropic and transversely isotropic material. The method was experimentally verified on an isotropic 7050-T7451 aluminum with two different thicknesses and a transversely isotropic composite laminate fabricated using 24 plies of CYCOM 977-2 12 k HTA unidirectional carbon fibre reinforced polymer (CFRP) prepregs. The results demonstrate that this technique is able to accurately measure the material properties of isotropic material. As for the transversely isotropic material this method is able to accurately measure the material properties if the experimental errors can be reduced to less than 1%.

show abstract

“…In our opinion it would be appropriate to correct mathematical models of fabric reinforced laminates with some statistical analysis. Of course, the above presented are just a part of modelling attempts and, as any model, they are perfectible taking into account other hypothesis or reinterpreting some conditions [31][32][33][34].…”

mentioning

confidence: 99%

Tensile Behaviour of Fabric Reinforced Laminates and Plies

Capatina¹,

Bria²,

Bunea³

et al. 2019

Mat.Plast.

View full text Add to dashboard Cite

The present paper is concerning to an empirical analysis of tensile properties of plies and laminates formed with an epoxy matrix and with various carbon fiber fabrics. The analysis was started with the aim of finding some correlations between the elastic parameters of plies and elastic parameters of laminates when fabrics are used as reinforcements. Six different carbon fiber fabrics were used to analyze the plies and laminates mechanical parameters. The epoxy system Epiphen RE-4020-DE4020 was used in both cases as matrix. The mechanical response to tensile test was analyzed for above mentioned materials and the results had been compared with values obtained by application of various purposed models.

show abstract

Effects of composite lamina properties on fundamental Lamb wave mode dispersion characteristics

Cited by 37 publications

References 10 publications

The Rapid Detection Technology of Lamb Wave for Microcracks in Thin-Walled Tubes

The Rapid Detection Technology of Lamb Wave for Microcracks in Thin-Walled Tubes

In-Situ Characterization of Isotropic and Transversely Isotropic Elastic Properties Using Ultrasonic Wave Velocities

Tensile Behaviour of Fabric Reinforced Laminates and Plies

Contact Info

Product

Resources

About