Sökning: "stiffness measurement"
Visar resultat 11 - 15 av 89 avhandlingar innehållade orden stiffness measurement.
11. Local variation in bending stiffness in structural timber of Norway spruce : for the purpose of strength grading
Sammanfattning : Most strength grading machines on the European market use an averagemodulus of elasticity (MOE), estimated on a relatively large distance along awood member, as the indicating property (IP) to bending strength. Theaccuracy of such grading machines in terms of coefficient of determination israther low at R2 ≈ 0.5. LÄS MER
12. Assessment of existing concrete bridges : bending stiffness as a performance indicator
Sammanfattning : Optimizing the use of existing civil reinforced concrete (RC) structures could be interpreted in such a way as to say that the capacity should be used and taken care of in an effective manner, both from a technical and economical point of view, keeping the safety in mind. Achieving this requires thorough understanding of the structure and also of the tools used for assessing current and future capacity and needs. LÄS MER
13. Three-Dimensional Load-Deformation Relationships of Arbitrarily Loaded Coiled Springs
Sammanfattning : This paper reports the development of a computer based tool that can be used to predict the three-dimensional load-deformation relationships of arbitrarily loaded coiled springs. The non-linear deformation of the spring is calculated by dividing the spring into small elements for which the load-deformation relationships can be considered to be linear. LÄS MER
14. Mechanics of Cross-Laminated Timber
Sammanfattning : Increasing awareness of sustainable building materials has led to interest in enhancing the structural performance of engineered wood products. Wood is a sustainable, renewable material, and the increasing use of wood in construction contributes to its sustainability. LÄS MER
15. Very preterm birth and fetal growth restriction in adolescence - Cardiovascular and renal aspects
Sammanfattning : This thesis applied magnetic resonance imaging (MRI) to investigate to what extent very preterm birth due to early onset fetal growth restriction (FGR) impacts the cardiovascular system and kidneys in adolescence. The thesis further investigated whether FGR exacerbates the organ-specific effects of very preterm birth. LÄS MER