Essays about: "Viscoelastic"

Showing result 21 - 25 of 50 essays containing the word Viscoelastic.

  1. 21. Non-destructive Evaluation of Ultrasound Contrast Agent

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Wendi Löffler; [2019]
    Keywords : ultrasound; microbubbles; contrast agent; attenuation; phase velocity;

    Abstract : Clinical ultrasound imaging techniques can be greatly improved by the use of ultrasound contrast agents (UCAs). While microbubbles (MBs) without shell are unstable and cannot be used for practical applications,a shell produced from biocompatible polyvinylalcohol (PVA) significantly improves chemical versatility and stability. READ MORE

  3. 22. Basic Creep of Young Concrete - Sensitivity in the Evaluation Method

    University essay from KTH/Betongbyggnad

    Author : Benar Ekmat; Natalea Hermes; [2019]
    Keywords : thermal cracking; young concrete; creep; Linear Logarithmic Model; temperature development; average strain; sensitivity.; Temperatursprickor; ung betong; krypning; Linjär Logaritmisk Modell; temperaturutveckling; töjning; känslighet.;

    Abstract : Creep is defined as deformation that takes place under constant load after an initial elastic response. This thesis focuses on a material property problem area that concerns stress analysis. Focus is on stress development considering creep deformations occurring when a concrete structure is under load, i.e. READ MORE

  4. 23. Polymer Aging Mechanics : An investigation on a Thermoset Polymer used in the Exterior Structure of a Heavy-duty Vehicle

    University essay from Linnéuniversitetet/Institutionen för skog och träteknik (SOT)

    Author : Basil Abu-Ragheef; [2019]
    Keywords : polyDicyclopentadiene; aging; thermosets; fatigue; mechanical properties; thermal fatigue; digital image correlation; viscoelasticity; polymer degradation; thermo-oxidation; photo-oxidation;

    Abstract : The use of plastic materials in the design of vehicle components is primarily driven by the need for vehicle weight and cost reduction. Additionally, these materials give design engineers freedom in creating appealing exterior designs. READ MORE

  5. 24. Static and dynamic characterization of elastomers by a modified hardness test

    University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Author : Omar Chouman; [2019]
    Keywords : Rubber; elastomer; modified hardness test; dynamic and static characterization; damping; dynamic shear modulus; hyperelastic material; hyperelastic constants; finite element method; FEM; FEA; Abaqus; Volvo Cars; Technology and Engineering;

    Abstract : Today rubber can be found in many different applications, such as vibration dampers, tyres, clothes and gaskets. Two different types of rubbers are used today, namely the natural rubber and synthetic rubber. Natural rubber is made of a milky substance called latex, which is obtained from special trees found in tropical countries. READ MORE

  6. 25. Analysis of hydrogels for immobilisation of hepatocytes (HepG2) in 3D cell culturing systems

    University essay from Linköpings universitet/Teknisk biologi

    Author : Elisabeth Westergren; [2018]
    Keywords : Hydrogel; Hepatocyte; Tuneable; PEG-peptide; 3D cell culture;

    Abstract : In pharmaceutical development cell cultures are used as in vitro models to evaluate the function of drug candidates. In such research it is vital to have models that resemble the in vivo environment to get reliable results. READ MORE