Recursos de colección

Biblioteca Digital do IPB (53.442 recursos)

A Biblioteca Digital do IPB, tem por objectivo divulgar e permitir o livre acesso à produção científica produzida pela comunidade académica, promovendo a integração, partilha e a visibilidade da informação científica e garantindo a preservação da memória intelectual do Instituto Politécnico de Bragança.

DTM - Posters em Encontros Científicos Internacionais

Mostrando recursos 1 - 3 de 3

  1. PDMS anatomical realistic models for hemodynamic studies using rapid prototyping technology

    Queijo, Luís; Lima, R.
    In vivo hemodynamics studies in animals it is considered to be essential to validate computational hemodynamics models, as real physiological situations can be mimicked. However, in vivo studies are expensive, difficult to control several physiological variables, and most of the times the measurements are not accurate. Over the years, in vitro experiments have been developed to overcome those limitations, but most of them had used simple and rigid geometries and not physiologically shaped. Hence, it is important to investigate new fabrication techniques to manufacture anatomically realistic artery models to obtain accurate measurements of the blood flow behavior in both macro and micro in vitro arteries ahead of in...
    - 24-ene-2018

  2. Strain fields adjacent to bone-implant interfaces: strain field analysis using digital image correlation techniques

    Ribeiro, J.E.; Monteiro, J.; Lopes, H.; Vaz, M.A.P.; Guedes, R.M.
    When using conventional surface strain measurement techniques (e.g. strain gauges, dial gauges), the measurement of deformations within cancellous bone is frequently hampered by the material’s highly porous structure and poor mechanical properties. Although detailed strain maps derived from actual experimental data have the potential to resolve many questions concerning the mechanics of cancellous bone, the traditional method of producing maps through measurements with optical techniques has been applied infrequently in its study of this material.
    - 24-ene-2018

  3. Measuring of non-uniform residual stresses in depth with optical techniques

    Ribeiro, J.E.; Monteiro, J.; Vaz, M.A.P.; Lopes, H.
    The goal of this work is the development of optical experimental techniques to measure non-uniform residual stresses in depth, as alternative to the hole-drilling method with strain gages. The proposed hybrid techniques are based on Moiré Interferometry and in-plane Electronic Speckle Pattern Interferometry (ESPI) and used the integral method for stress assement. In this work a shot peening specimen was used to compare the results obtained with different techniques: X ray diffraction, hole drilling with strain gages, finite elements method simulation and the referred optical techniques.
    - 24-ene-2018

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