Peculiarities of friction in auxetic composites

Шилько, С. В.; Petrokovets, E. M.; Pleskachevsky, Yu. M.

doi:10.1002/pssb.200777716

Cited by 12 publications

(4 citation statements)

References 7 publications

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“…78 The auxetic behavior of the site-connectivity driven rod reorientation structure (Figure 3) comes from the rotation of the rods. 20,79 The rod model (Figure 13) for describing the angle-ply composites, 80 molecular rods with prismatic structure to achieve auxetic behavior at the molecular level, 18 doublearrow-like 'hard' block and a spring-like 'soft' segment model for copolymers 81 was also proposed.…”

Section: Other Structuresmentioning

confidence: 99%

Auxetic materials and their potential applications in textiles

Wang

2014

Textile Research Journal

210

125

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Auxetic materials are a kind of non-conventional materials having negative Poisson’s ratio. They laterally expand when stretched or laterally shrink when compressed. Compared to conventional materials, auxetic materials have a number of enhanced properties that could be very interesting for some special applications. This paper reviews the latest achievements in auxetic materials, including their properties, structures and applications. A special discussion on their potential applications in textiles is also made. It is expected that this review could provide some useful information for the future development of auxetic textile materials.

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Section: Other Structuresmentioning

confidence: 99%

Auxetic materials and their potential applications in textiles

Wang

2014

Textile Research Journal

210

125

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“…The former expands transversely when stretched longitudinally 1–10 while the latter shrinks with increasing temperature 11–20. The auxetic phenomenon is caused by re‐entrant structures 6, 21, chiral structures 22, 23, rotating units 24–29, angle‐ply laminates 2, 30, rigid free molecules (e.g., hexamers) 31–37, microporous polymers 3, 38, and liquid crystalline model 39, 40, to name a few. The NTE behavior has so far been elucidated by low phonon modes 41, 42 ferroelectric phase transition 43, libration 44–46, rigid unit modes 47–52, and phase transition 53–56, among others.…”

Section: Introductionmentioning

confidence: 99%

Coefficient of thermal expansion of stacked auxetic and negative thermal expansion laminates

Lim

2010

Physica Status Solidi (b)

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Analytical expressions for the in-plane and out-of-plane coefficients of thermal expansion for laminates with isotropic laminas are presented herein based on (i) zero net force on the laminate edges, (ii) equal displacement of the lamina edges, and (iii) Hooke's law in three dimensions. Results show that a laminate consisting of alternating auxetic (with positive coefficient of thermal expansion, CTE) and negative thermal expansion (NTE) (with positive Poisson's ratio) laminas exhibit a more negative effective CTE than a laminate of alternating conventional laminas (positive Poisson's ratio and positive CTE) with unconventional laminas (auxetic and NTE). Finally, temperature-dependent CTE for such laminates are developed and plotted for special cases. It is herein shown that under certain circumstances, the magnitude of temperature-dependent effective CTE tends to infinity. [47][48][49][50][51][52], and phase transition [53-56], among others. As a result of their novel properties, a number of applications have been suggested or developed using auxetic (e.g., in Refs. [57][58][59][60][61]) and NTE (e.g.,) materials. For example, auxetic materials have been identified for use in aerospace structural materials [6], while the CTE of dental fillings can be tailored to match that of the tooth to reduce thermal stress between the tooth and the dental filling or as composites that are useful for reducing thermal stresses in various applications [68]. To date, a number of studies on the effect of alternating positive and negative Poisson's ratio laminas on the effective laminate

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“…8b). Taking into account the previous stress history is also important for calculating the auxetic self-lock mode at the conditions of contact compression and shear [28]. 7 Prediction of auxetic effects in porous materials with nano-sized cells Self-assembling highstrength and rigid materials of small density is of great interest similar to Langmuir films [30].…”

Section: 2πmentioning

confidence: 99%

Prediction of auxetic phenomena in nanoporomaterials

Шилько¹,

Petrokovets²,

Pleskachevsky³

2008

Physica Status Solidi (b)

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Porous materials are efficient structures in respect to optimizing strength and stiffness for a given weight. A new means of improving the characteristics of the samples may be realized using abnormal deformation properties of auxetic porous materials having a negative Poisson's ratio ν. Auxetic porous materials are suitable for creating adaptive contact joints and for replacing damaged biotissue. It is known that the inverted or re‐entrant cell structure of porous auxetics may be obtained by isotropic permanent volumetric compression of conventional foam, resulting in microbuckling of the cell walls. There is interest in compression‐driven self‐assembly as a means to create auxetic porous structures on a nanoscale. To predict the deformation behaviour of porous materials under various types of loading, corresponding mathematical models should be developed. The possibility of compression‐driven self‐assembly of the auxetic nanostructures has been predicted. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Peculiarities of friction in auxetic composites

Cited by 12 publications

References 7 publications

Auxetic materials and their potential applications in textiles

Auxetic materials and their potential applications in textiles

Coefficient of thermal expansion of stacked auxetic and negative thermal expansion laminates

Prediction of auxetic phenomena in nanoporomaterials

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