Assessment of material property variations with resonant ultrasound spectroscopy (RUS) when using additive manufacturing to print over existing parts

Taheri, Hossein; Dababneh, Fadwa; Weaver, Greg S.; Butsch, Bryan

doi:10.1016/j.jajp.2022.100117

Cited by 4 publications

(1 citation statement)

References 35 publications

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“…Although it is not financially feasible to replace the entire structure, there are some alternatives, like cutting the deposited region, putting fresh additive layers at the corroded surface, and sealing small gaps [13]. The use of AM systems, which create 3D structures layer-by-layer deposition, has grown in popularity since they need less time to produce, waste less material and environmental-friendly process [14][15][16][17]. This approach saves about half of manufacturing costs in contrast to the traditional techniques [18].…”

Section: Introductionmentioning

confidence: 99%

Metallurgical and mechanical properties of marine grade AA5356 using wire arc additive manufacturing

Jeyakumar,

Jayakumar

2024

Mater. Res. Express

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In the current work, a Gas metal arc welding (GMAW)-based Wire Arc Additive Manufacturing (WAAM) procedure was used to build a wall construction of measuring Aluminium alloy (AA) AA5356 on an AA5083 base plate. The microstructure and mechanical properties of AA5356 were examined at two places along the wall structure’s horizontal deposition direction and in two deposition orientations (horizontal and vertical). Optical microscopy, SEM, EDAX, and fractographical examinations were used to analyse the microstructure. Tensile and microhardness tests were performed at two wall locations to evaluate mechanical parameters. A microstructure analysis reveals a mixture of columnar grain structure and coarser intermetallics in the remelting zone, with finer granular structure in the central region. The horizontal direction of AA5356 deposition exhibited a highest elongation and tensile strength of 4.4% and 249 MPa than the vertical direction. For the horizontal and vertical orientations, the average microhardness values were determined to be 80 HV and 72 HV, respectively. Fracture analysis of the tensile samples showed that the deposited metal had a ductile mode of failure with a predominance of dimples with tearing shape. This study provides valuable insights into constructing wall structures and analyzing their mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Metallurgical and mechanical properties of marine grade AA5356 using wire arc additive manufacturing

Jeyakumar,

Jayakumar

2024

Mater. Res. Express

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Natural frequency informed finite element modal analysis method for estimating elastic properties of solid materials

Mahat,

Sharma,

Jeong

et al. 2024

Journal of Applied Physics

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This study proposes a simple yet effective dynamic method that can nondestructively evaluate the elastic properties of homogeneous isotropic solid materials. Like some dynamic methods, such as resonance ultrasound spectrometry and impulse excitation technique, the proposed method consists of two steps: experimentally acquiring the specimen's natural frequencies and numerically calculating the elastic properties. Compared with the existing methods, the proposed method has much lower requirements on all four aspects of experimental operations: specimen preparation, specimen positioning, vibration excitation, and vibration detection. An inverse method based on finite element modal analysis is proposed to calculate the specimen's elastic properties, and it can deliver optimal estimations with high precision and accuracy. The performance of the proposed method was assessed using the well-established sound speed-based dynamic method, i.e., ultrasound pulse-echo testing. Taking a square aluminum specimen as an example, the differences in the measurements of Young's modulus and Poisson's ratio between these two methods are 2.25% and −2.07%, respectively; the differences in the measurements of shear modulus and bulk modulus are 0.01% and −1.46%, respectively. In summary, the proposed method provides a cheaper and experimentally simpler approach to determining the elastic properties of solid materials while maintaining accuracy and reliability similar to the established methods, which typically require sophisticated, costly equipment.

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Toward In-situ Characterization of Additively Manufactured Parts Using Nonlinear Resonance Ultrasonic Spectroscopy

Manogharan

Rivière

Shokouhi

2022

Research in Nondestructive Evaluation

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Assessment of material property variations with resonant ultrasound spectroscopy (RUS) when using additive manufacturing to print over existing parts

Cited by 4 publications

References 35 publications

Metallurgical and mechanical properties of marine grade AA5356 using wire arc additive manufacturing

Metallurgical and mechanical properties of marine grade AA5356 using wire arc additive manufacturing

Natural frequency informed finite element modal analysis method for estimating elastic properties of solid materials

Toward In-situ Characterization of Additively Manufactured Parts Using Nonlinear Resonance Ultrasonic Spectroscopy

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