Scanning Microdeformation Microscopy: Subsurface Imaging and Measurement of Elastic Constants at Mesoscopic Scale

Vairac, Pascal; Cretin, B.

doi:10.1007/3-540-27453-7_8

Cited by 7 publications

(4 citation statements)

References 51 publications

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“…The shift frequency difference between these two specimens, due to their different modulus, is about 350 Hz. Note that the SMM has already been tested on standard hard materials like silicon and silica [6,21,26] and a precision of nearly 5 % have been determined with the used model.…”

Section: Experimental Conditionsmentioning

confidence: 99%

Comparison of three different scales techniques for the dynamic mechanical characterization of two polymers (PDMS and SU8)

Rouzic

Delobelle

Vairac

et al. 2009

Eur. Phys. J. Appl. Phys.

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Section: Experimental Conditionsmentioning

confidence: 99%

Comparison of three different scales techniques for the dynamic mechanical characterization of two polymers (PDMS and SU8)

Rouzic

Delobelle

Vairac

et al. 2009

Eur. Phys. J. Appl. Phys.

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“…The SMM has already been tested on standard hard materials such as silicon and silica 6,12,19 and leaded to a precision of nearly 5% with the model we are using. We took 2.8 MPa for the static Young modulus ͑dynamic mechanical measurement value͒.…”

Section: Resultsmentioning

confidence: 99%

“…We have used a continuous model 6,12 ͑Fig. 3͒ to obtain Young's moduli values of tested samples from the measured contact resonant frequencies.…”

Section: Modelmentioning

confidence: 99%

Sensitivity optimization of the scanning microdeformation microscope and application to mechanical characterization of soft materials

Rouzic

Vairac

Cretin

et al. 2008

Review of Scientific Instruments

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In this article we present the study of the sensitivity optimization of our system of micromechanical characterization called the scanning microdeformation microscope. The flexural contact modes of vibration of the cantilever have been modeled. We discuss the matching between the cantilever stiffness and the contact stiffness which depends on the sample material. In order to obtain the best sensitivity, the stiffnesses must be the closest one to each other. Because the length of the cantilever directly affects its stiffness, the cantilever geometry can be optimized for different materials. We have validated this study with measurements on a soft material the polydimethylsiloxane with a cantilever optimized for materials of Young's moduli of some megapascals. Experimental results obtained with two different samples have shown the high sensitivity of the method for the measurement of low Young's moduli and have been compared with nanoindentation and dynamic mechanical analysis results.

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“…Zeng et al [19] proposed a tunable resonance method to eliminate the uncertainties of the clamping point conditions in resonance experiments. To measure the local elasticity and dynamic viscoelasticity, contact resonance method such as atomic force acoustic microscopy [20,21], scanning microdeformation microscopy [22], and piezoelectric cantilever [23] have been developed, which use a high-quality-factor cantilever beam to probe the sample's modulus and damping properties [24][25][26][27][28]. Other category of dynamic testing techniques include the impact test, the shear force test, and the small-scale split-Hopkinson tension/pressure bar technique.…”

Section: Dynamic Characterization Of Small Fibers Based On the Flexur...mentioning

confidence: 99%

Dynamic characterization of small fibers based on the flexural vibrations of a piezoelectric cantilever probe

Zhang

2016

Meas. Sci. Technol.

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In this paper, we present a cantilever-probe system excited by a piezoelectric actuator, and use it to measure the dynamic mechanical properties of a micro- and nanoscale fiber. Coupling the fiber to the free end of the cantilever probe, we found the dynamic stiffness and damping coefficient of the fiber from the resonance frequency and the quality factor of the fiber-cantilever-probe system. The properties of Bacillus subtilis fibers measured using our proposed system agreed with tensile measurements, validating our method. Our measurements show that the piezoelectric actuator coupled to cantilever probe can be made equivalent to a clamped cantilever with an effective length, and calculated results show that the errors of measured natural frequency of the system can be ignored if the coupled fiber has an inclination angle of alignment of less than 10°. A sensitivity analysis indicates that the first or second resonant mode is the sensitive mode to test the sample’s dynamic stiffness, while the damping property has different sensitivities for the first four modes. Our theoretical analysis demonstrates that the double-cantilever probe is also an effective sensitive structure that can be used to perform dynamic loading and characterize dynamic response. Our method has the advantage of using amplitude-frequency curves to obtain the dynamic mechanical properties without directly measuring displacements and forces as in tensile tests, and it also avoids the effects of the complex surface structure and deformation presenting in contact resonance method. Our method is effective for measuring the dynamic mechanical properties of fiber-like one-dimensional (1D) materials.

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Scanning Microdeformation Microscopy: Subsurface Imaging and Measurement of Elastic Constants at Mesoscopic Scale

Cited by 7 publications

References 51 publications

Comparison of three different scales techniques for the dynamic mechanical characterization of two polymers (PDMS and SU8)

Comparison of three different scales techniques for the dynamic mechanical characterization of two polymers (PDMS and SU8)

Sensitivity optimization of the scanning microdeformation microscope and application to mechanical characterization of soft materials

Dynamic characterization of small fibers based on the flexural vibrations of a piezoelectric cantilever probe

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