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Mechanical properties of solid polymers
TLDR
A concise, self-contained introduction to solid polymers, the mechanics of their behavior and molecular and structural interpretations can be found in this article, which provides extended coverage of recent developments in rubber elasticity, relaxation transitions, non-linear viscoelastic behavior, anisotropic mechanical behavior, yield behavior of polymers and other fields.Abstract:
A concise, self-contained introduction to solid polymers, the mechanics of their behavior and molecular and structural interpretations. This updated edition provides extended coverage of recent developments in rubber elasticity, relaxation transitions, non-linear viscoelastic behavior, anisotropic mechanical behavior, yield behavior of polymers, breaking phenomena, and other fields.read more
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The Influence of Intrinsic Strain Softening on Strain Localization in Polycarbonate: Modeling and Experimental Validation
TL;DR: In this paper, the effect of mechanical conditioning by cyclic torsion on the subsequent deformation of polycarbonate polymers is investigated. But the model is purely single mode' (i.e., only one relaxation time is involved), and therefore it is not able to capture the nonlinear viscoelastic pre-yield behavior accurately.
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Production and evaluation of biodegradable composites based on PHB-PHV copolymer.
TL;DR: Preliminary in vitro study indicated enhanced ability of the composites to induce the formation of bone-like apatite on their surfaces, which would help to produce new biomaterials for potential medical applications.
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A versatile shear and compression apparatus for mechanical stimulation of tissue culture explants.
TL;DR: In metabolic studies described here, application of sinusoidal macroscopic shear deformation to articular cartilage explants resulted in a significant increase in the synthesis of proteoglycan and proteins over controls held at the same static offset compression.
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Mechanical study of PLA-PCL fibers during in vitro degradation.
André Vieira,Joana Vieira,João Ferra,Fernão D. Magalhães,Rui Miranda Guedes,António Torres Marques +5 more
TL;DR: In this article, the evolution of mechanical properties during degradation is discussed based on experimental data, and constitutive models that describe the mechanical behavior during degradation are proposed and experimentally validated, which can be adapted and used in other biodegradable materials, and can be considered fundamental tools in the design of regenerative medical devices.
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Thermal transitions and mechanical properties of films of chemically prepared polyaniline
TL;DR: In this article, the glass transition temperature (Tg) of polyaniline films in emeraldine base form was determined and characterized for the first time to be in the range of ∼ 105-220°C for the films containing ∼ 16-0% of 1-methyl-2-pyrrolidinone (NMP) residual solvent, respectively.
References
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The Determination of the Elastic Field of an Ellipsoidal Inclusion, and Related Problems
TL;DR: In this paper, it is shown that to answer several questions of physical or engineering interest, it is necessary to know only the relatively simple elastic field inside the ellipsoid.
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The Phenomena of Rupture and Flow in Solids
TL;DR: In this article, the authors investigated the effect of surface scratches on the mechanical strength of solids, and some general conclusions were reached which appear to have a direct bearing on the problem of rupture, from an engineering standpoint, and also on the larger question of the nature of intermolecular cohesion.
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Yielding of steel sheets containing slits
TL;DR: In this article, a relation between extent of plastic yielding and external load applied was investigated, and panels containing internal and edge slits were loaded in tension and lengths of plastic zones were measured.
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