Sonelastic® - Advanced Impulse Excitation Technique

For non-destructive elastic moduli and damping characterization of materials.

Sonelastic® are systems based on the Impulse Excitation Technique (ASTM-E1876) for the accurate and non-destructive characterization of elastic moduli (E, G and Poisson ratio) and damping of materials. It is suitable to be used with a wide range of geometries and dimensions, and for room and high temperature characterizations.

Sonelastic® overview.

To learn more about the Sonelastic® FEM system for metal alloys, continue on this page. For more information about Sonelastic® Systems in general, please visit the Sonelastic Division webpage: Sonelastic®.

Sonelastic® FEM

Elastic moduli characterization for accurate Finite Element Modeling and Analysis.

Knowing the elastic moduli exact values is crucial for accurate Finite Element Modeling and Analysis (FEM/FEA). Sonelastic® FEM enables measuring the Young’s modulus, shear modulus, Poisson´s ratio and damping of metallic alloys used in the manufacturing of ultrasonic horns and parts.

  • Sonelastic® FEM.

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General specifications of the system:
  • Young's modulus range: from 0.5 to 900 GPa.
  • Frequency range: from 20 Hz to 96 kHz.
  • Vibration modes: flexural, torsional and longitudinal.
  • Dimension range: from 20 mm (3/4 inch) to 120 mm (4 3/4 inches).
  • Geometries: Square or rectangular cross-section bars, cylinders, discs and rings.
  • Square cross-section bars
    • Width and thickness (A): from 2 to 40 mm
    • Length (L): from 20 to 120 mm.
    • Aspect ratio: L/A ≥ 3.
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Items of the Sonelastic® FEM:
  • 01 Sonelastic® Software license with free 5-year updates.
  • 01 Support for small samples SB-AP.
  • 01 Set of manual impulse devices (01 light and 01 medium).
  • 01 CA-DP, directional acoustic sensor.
  • Installation and operation manuals in English.

Note: This System requires a computer with 196 kHz sound card not included.

Elastic properties of alloys used in ultrasonic horns

Table-1 shows the typical elastic properties of alloys used in the manufacturing of ultrasonic horns and sonotrodes. This information is for reference only; elastic properties vary significantly depending on:
- Lot and supplier;
- Heat treatment (please, see Table 2 for examples);
- Geometry and dimensions (please, see Table 3 for examples);
- Position along the billet/plate;
- Grain/cut direction (parallel / along with or perpendicular to the lamination).
For exact values, we recommend the material characterization performed by the Sonelastic FEM.

Table 1 – Typical elastic properties of alloys used in the manufacturing of ultrasonic horns and sonotrodes.
MaterialYoung's moduli (GPa)Shear moduli (GPa)Poisson ratio (ad.)ρ (g/cm3)
Titanium 6Al-4V (Grade 5)112.2543.410.294.41
Aluminium 707572.8326.610.372.80
Tool steel VND203.7479.010.297.82
Tool steel VC131208.1980.950.297.71
Stainless steel 4043207.3280.960.287.81
Cabon steel 1045205.9179.840.297.79
Note: Elastic properties measured by Sonelastic® FEM with uncertainty of 0.15%.

Table 2 – Influence of tempering on the elastic properties of steels for ultrasonic horns.
MaterialTemperingYoung's moduli (GPa)Shear moduli (GPa)Poisson ratio (ad.)
Tool steel VNDNo212.9683.120.28
Yes203.4478.900.29
Tool steel VC131No216.9984.730.28
Yes207.8980.830.29
Cabon steel 1045No210.5481.720.29
Yes205.6179.720.29
Note: Elastic properties measured by Sonelastic® FEM with uncertainty of 0.15%.

Table 3 – Influence of the geometry/process and grain orientation on the elastic properties of titanium for ultrasonic horns.
MaterialGeometryProcessGain orientationYoung’s moduli (GPa)Shear moduli (GPa)Poisson´s ratio (ad.)
Titanium 6Al-4V (Grade 5)BilletDrawn112.0943.350.29
BlockRolled114.6945.210.26
BlockRolled90º126.1046.490.36
Note: Elastic properties measured by Sonelastic® FEM with uncertainty of 0.15%.


Sonelastic® division site