Effect of aspect ratio of test specimens on quasistatic compression loading and stress-relaxation of PDMS and a Cu-filled-PDMS composite

Sonawane, Dipali; Oberoi, Sudhi; Kumar, Praveen

doi:10.1016/j.polymertesting.2016.08.022

Cited by 5 publications

(2 citation statements)

References 18 publications

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“…However, the non-uniform flux induces a non-uniform modulus change, which may impact the measured modulus values. In addition, the measured modulus may be affected by the non-uniform stress field that forms in compression samples [57]. We also performed magneto-rheometer tests of a thin cylindrical sample of MAE under shear deformation, which show an apparent shear modulus of 572 kPa with no field applied at 0.01% strain, and an MR effect of 236% at 0.6 T. These results are in good agreement with prior results obtained using this technique [58].…”

Section: Materials Characterization and Modelingsupporting

confidence: 88%

Adaptive elastic metastructures from magneto-active elastomers

Pierce

Willey

Chen

et al. 2020

Smart Mater. Struct.

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Elastic metastructures provide advanced control of elastic wave propagation, particularly through their ability to exhibit frequency band gaps where elastic waves cannot propagate. Several metastructure design strategies to realize band gaps in frequency ranges of interest have emerged in recent years. However, the band gap frequencies are fixed at design time by the metastructure geometry and constituent materials. Here, a tunable metamaterial is developed which utilizes the coupled magneto-mechanical response of magnetoactive elastomers (MAE) to enable active control of the band gap frequencies. It is shown that the band gap of a lattice-based metastructure design can be tuned over a continuous frequency range by remote application of a magnetic field. A direct-ink write fabrication method is introduced to fabricate the metastructures from MAEs, which allows this concept to be extended to a vast design space. Our results suggest that the band gap tunability depends not only on the strength of the applied magnetic field, but also on the interaction of the magnetic field and the metastructure geometry. This implies that the combined effects of geometry and magnetic stiffening represent a new design parameter for tunable metastructures, enabling the creation of new smart structures which feature tunable inherent vibration control.

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Section: Materials Characterization and Modelingsupporting

confidence: 88%

Adaptive elastic metastructures from magneto-active elastomers

Pierce

Willey

Chen

et al. 2020

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…In paper [24], authors examined the influence of ratio of copper filler on the relaxation properties of composites based on polydimethylsiloxane. The ability to absorb mechanical energy during cyclic loading of composites with such a filler increases when applying nanometer-sized copper particles [25].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Research into kinetic patterns of chemical metallization of powderlike polyvinylchloride

Moravskyi

Dziaman

Suberliak

et al. 2017

EEJET

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A new load-controlled testing method for viscoelastic characterisation through stress-rate measurements

2020

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Effect of aspect ratio of test specimens on quasistatic compression loading and stress-relaxation of PDMS and a Cu-filled-PDMS composite

Cited by 5 publications

References 18 publications

Adaptive elastic metastructures from magneto-active elastomers

Adaptive elastic metastructures from magneto-active elastomers

Research into kinetic patterns of chemical metallization of powderlike polyvinylchloride

A new load-controlled testing method for viscoelastic characterisation through stress-rate measurements

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Effect of aspect ratio of test specimens on quasistatic compression loading and stress-relaxation of PDMS and a Cu-filled-PDMS composite

Cited by 5 publications

References 18 publications

Adaptive elastic metastructures from magneto-active elastomers

Adaptive elastic metastructures from magneto-active elastomers

Research into kinetic patterns of chemical metallization of powder­like polyvinylchloride

A new load-controlled testing method for viscoelastic characterisation through stress-rate measurements

Contact Info

Product

Resources

About

Research into kinetic patterns of chemical metallization of powderlike polyvinylchloride