Application of acoustic methods for a non-destructive evaluation of the elastic properties of several typologies of materials

Lago, S.; Brignolo, S.; Cuccaro, R.; Musacchio, Chiara; Albo, P. A. Giuliano; Tarizzo, Paolo

doi:10.1016/j.apacoust.2013.07.006

Cited by 7 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Materials investigated in this paper were copper alloy, aluminum alloy, stainless steel, and copper–chromium–zirconium alloy. Young’s modulus E s and Poisson ratio ν s of the tested materials were previously evaluated from accurate measurements of speeds of sound in solids and in tension at environmental temperature (~21 °C) [ 41 , 42 , 43 , 44 ]. Despite the known systematic difference between dynamic and static moduli, the reference data are accurate as the overall uncertainties are less than 1%.…”

Section: Methodsmentioning

confidence: 99%

Indentation Modulus, Indentation Work and Creep of Metals and Alloys at the Macro-Scale Level: Experimental Insights into the Use of a Primary Vickers Hardness Standard Machine

et al. 2021

View full text Add to dashboard Cite

In this work, the experimental method and the calculation model for the determination of indentation moduli, indentation work, and indentation creep of metallic materials, by means of macroscale-level forces provided by a primary hardness standard machine at the National Institute of Metrological Research (INRIM) at the at room temperature were described. Indentation moduli were accurately determined from measurements of indentation load, displacement, contact stiffness and hardness indentation imaging and from the slope of the indentation unloading curve by applying the Doerner-Nix linear model; indentation work, representing the mechanical work spent during the force application of the indentation procedure, was determined by calculating the areas under the loading–unloading indentation curve, through fitting experimental data with a polynomial law. Measurements were performed with a pyramidal indenter (Vickers test). The applied force was provided by a deadweight machine, and the related displacement was measured by a laser interferometric system. Applied forces and the occurring indentation depths were simultaneously measured: the resulting loading–unloading indentation curve was achieved. Illustrative tests were performed on metals and alloy samples. Discussion and comments on the suitability of the proposed method and analysis were reported.

show abstract

Section: Methodsmentioning

confidence: 99%

Indentation Modulus, Indentation Work and Creep of Metals and Alloys at the Macro-Scale Level: Experimental Insights into the Use of a Primary Vickers Hardness Standard Machine

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The materials tested in this work are copper alloy, aluminum alloy, stainless steel, and brass. Young's modulus E and Poisson ratio s of the tested materials were previously determined on the basis of accurate measurements of longitudinal cl and transversal ct sound speed waves in solids [19], at room temperature. Although some systematic differences between dynamic and static moduli can be achieved, the reference data can be considered sufficiently accurate and useful for the proposed comparison method, since overall uncertainties are lower than 1 %.…”

Section: Methodsmentioning

confidence: 99%

Indentation modulus at macro-scale level measured from Brinell and Vickers indenters by using the primary hardness standard machine at INRiM

et al. 2019

View full text Add to dashboard Cite

In this paper, the experimental procedure and calculation model for the measurement of the indentation modulus by using the primary hardness standard machine at INRiM in the macro-scale range at room temperature is described. The indentation modulus is calculated based on the Doerner-Nix linear model and from accurate measurements of indentation load, displacement, contact stiffness, and hardness indentation imaging. Measurements are performed with both pyramidal (Vickers test) and spherical indenters (Brinell test). Test force is provided by a dead-weight machine, and the occurring displacement is measured by a laser-interferometric system. The geometrical dimensions of both the Vickers and Brinell indentations are measured by means of a micro-mechanical system and optical microscopy imaging techniques. Applied force and indentation depth are measured simultaneously, at a 16 Hz sampling rate, and the resultant loading-unloading indentation curve is obtained. Preliminary tests are performed on metal and alloy samples. Considerations and comments on the accuracy of the proposed method and analysis are discussed.

show abstract

“…Dzida and co-workers have studied u(T,P) for n-alkanes, alcohols and their mixtures, and have discussed their results from a physical chemistry point of view. The research groups of Lago et al, [91][92][93][94][95][96][97][98][99][100] Kabelac et al, [101][102][103][104] Guedes et al, [106][107][108][109] Trusler et al [110][111][112] and others 105,113,114 have reported measurements of u(T,P) on compounds such as: water, hydrocarbons, refrigerants, oils over a wide range of temperature and pressure. Research on the u(T,P) for biomassderived fuels and related compounds has recently been reported.…”

Section: Speed Of Sound In Liquid Organic Compoundsmentioning

confidence: 99%

CHAPTER 13. Ultrasonics 2: High Pressure Speed of Sound, Isentropic Compressibility

Takagi¹

2014

Volume Properties

View full text Add to dashboard Cite

The pressure-volume (density)-temperature (P-r-T) surface of a fluid presents the basic thermodynamic properties for investigating the behaviour of fluids. The isothermal compressibility, k T , and isentropic (adiabatic) compressibility, k S , of a fluid are defined as:(13:1)where r refers to the specific molar volume, P to pressure, T to temperature and S to entropy. The pioneering studies on the P-r-T relationships for various compounds were conducted by Bridgman, 1,2 Gibson and Kincaid 3,4 and many colleagues in the early 20th century. Today, the experimental P-r-T data of a large number of liquids and/or mixtures have been stored or published in a variety of styles. Examples include the databases of Volume Properties: Liquids, Solutions and Vapours Edited by Emmerich Wilhelm and Trevor M. Letcher

show abstract

Application of acoustic methods for a non-destructive evaluation of the elastic properties of several typologies of materials

Cited by 7 publications

References 6 publications

Indentation Modulus, Indentation Work and Creep of Metals and Alloys at the Macro-Scale Level: Experimental Insights into the Use of a Primary Vickers Hardness Standard Machine

Indentation Modulus, Indentation Work and Creep of Metals and Alloys at the Macro-Scale Level: Experimental Insights into the Use of a Primary Vickers Hardness Standard Machine

Indentation modulus at macro-scale level measured from Brinell and Vickers indenters by using the primary hardness standard machine at INRiM

CHAPTER 13. Ultrasonics 2: High Pressure Speed of Sound, Isentropic Compressibility

Contact Info

Product

Resources

About