Essays about: "viscoelasticity"

Showing result 1 - 5 of 12 essays containing the word viscoelasticity.

  1. 1. Viscoelasticity of transparent wood-polymer biocomposites : Measuring the time-dependence of a delignified birch and poly(methyl methacrylate) composite’s mechanical properties, using digital image correlation

    University essay from KTH/Materialvetenskap

    Author : Marine Jeanne Debouvry; [2023]
    Keywords : ;

    Abstract : The viscoelastic behavior of a delignified birch and poly(methyl methacrylate) (PMMA) composite was investigated, in an effort to learn more about the mechanical properties of transparent wood-polymer biocomposites. Tensile creep tests with constant load were performed for native wood, non-delignified, and delignified wood-polymer composites. READ MORE

  3. 2. Methodology for evaluation of long-term mechanical properties of viscoelastic materials

    University essay from

    Author : NIKHIL JOSEPH EBI; [2023]
    Keywords : ;

    Abstract : Additive manufacturing (AM) enables the fabrication of complex geometries using layer-by-layerdeposition of materials like polymers and metals. However, predicting the long-term viscoelasticcharacteristics of AM polymer parts is challenging due to limited available data. READ MORE

  4. 3. Exploration of bioactive additives for hyaluronan based hydrogels : A literature study

    University essay from

    Author : Tilda Eriksson; Lisa Quakkelaar; Alexander Parkstam; Alina Karlsson; Mansourah Askari; Shukri Said Ahmed; [2022]
    Keywords : Hyaluronan; Hyaluronic Acid; HA; 1; 4-Butanediol diglycidyl ether; BDDE; polynucleotides; mannitol; biomedical applications; dermatological fillers; fillers; Hyaluronan; Hyaluronsyra; HA; 1; 4-butandiol diglycidyleter; BDDE; polynukleotider; mannitol; biomedicinska applikationer; dermatologiska fyllmedel; fyllmedel;

    Abstract : Hyaluronan (HA) is a substance that is commonly used in biomedical applications in the form of hydrogels. One of these biomedical applications is dermatological fillers where HA is cross-linked with 1,4-Butanediol diglycidyl ether (BDDE) to reduce its rapid turnover within tissue. The filler gives a volumetric effect that can fill out wrinkles. READ MORE

  5. 4. Micro-architectured materials for noise and vibration control in high voltage products – design and modelling

    University essay from Uppsala universitet/Tillämpad mekanik

    Author : Alec Chamberlain; [2021]
    Keywords : Microarchitectured; lattice; elasticity; viscoelasticity; computational; homogenization;

    Abstract : Many Hitachi ABB Power Grids (HAPG) products vibrate and emit noise, but legal limitations of these parameters fuel the development of energy absorption methods used on products. Methods such as Constrained Layer Damping (CLD). READ MORE

  6. 5. Material Characterization for the Simulation of Drop Tests Against PMMA Sheets

    University essay from Jönköping University/JTH, Material och tillverkning

    Author : Arturo Sancho Montagut; [2020]
    Keywords : Abaqus; Polymers; PMMA; Acrylic; Simulation; Material Models; Hyperelasticity; Plasticity; Viscoelasticity; Drucker Prager; Yeoh; Drop Test; Luminaires;

    Abstract : There is a high demand for implementing simulations in the design and product devel-opment processes, avoiding the execution of costly tests on prototypes and giving thechance of discarding unsuitable designs, as well as exploring possible ones without much cost added.This project assignment is to find a suitable way to simulate drop tests on two typesof PMMA sheets, a material widely used on luminaire covers. READ MORE