By a News Reporter-Staff News Editor at Journal of Technology -- Investigators publish new report on Solids Research. According to news reporting out of Aalborg, Denmark, by VerticalNews editors, research stated, "Constitutive equations are derived for the elastic response of swollen elastomers and hydrogels under an arbitrary deformation with finite strains. An expression is developed for the free energy density of a polymer network based on the Flory concept of flexible chains with constrained junctions and solvent-dependent reference configuration."
Our news journalists obtained a quote from the research from Aalborg University, "The importance of introduction of a reference configuration evolving under swelling is confirmed by the analysis of experimental data on nanocomposite hydrogels subjected to swelling and drying. Adjustable parameters in the stress-strain relations are found by fitting observations on swollen elastomers, chemical gels (linked by covalent bonds and sliding cross-links), and physical gels under uniaxial stretching, equi-biaxial tension, and pure shear. Good agreement is demonstrated between the observations and results of numerical simulation."
According to the news editors, the research concluded: "A pronounced difference is revealed between the effect of solvent content on elastic moduli of chemical and physical gels."
For more information on this research see: Stress-strain relations for hydrogels under multiaxial deformation. International Journal of Solids and Structures, 2013;50(22-23):3570-3585. International Journal of Solids and Structures can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; International Journal of Solids and Structures - www.elsevier.com/wps/product/cws_home/297)
Our news journalists report that additional information may be obtained by contacting A.D. Drozdov, Aalborg Univ, Dept. of Mech & Mfg Engn, DK-9220 Aalborg, Denmark.
Keywords for this news article include: Europe, Aalborg, Denmark, Solids Research
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