Sökning: "Poisson’s ratio"
Visar resultat 6 - 10 av 32 avhandlingar innehållade orden Poisson’s ratio.
6. On crack growth in functionally graded materials
Sammanfattning : Stress intensity factors' behaviour is studied for long plane cracks interacting with a region of functionally graded elastic material. The region is assumed embedded into a large body treated as a homogeneous elastic continuum. LÄS MER
7. Analysis of rock stress and rock stress measurements with application to Äspö HRL
Sammanfattning : The process of choosing a site for a nuclear waste repository means that many aspects have to be taken into consideration. One of these is that the repository has to be mechanically stable for a long time. The mechanical stability of the rock is very difficult to determine. LÄS MER
8. High-order accurate calculations and bounds on effective properties of composites
Sammanfattning : A classical problem in material science has been the studyof electrostatic and elastostatic properties of compositematerials. The complexity of the microstructure of randomcomposite media makes an exact calculation of the effectiveproperties very difficult. LÄS MER
9. Lamb wave evaluation of concrete plates
Sammanfattning : This thesis is about the application of Lamb waves for non-destructive evaluation of plate-like concrete structures under one-sided access test condition using a portable equipment consisting of an accelerometer and impact hammer. With this type of equipment and based on array signal processing, the impact-echo (IE) method can be extended with measurements of surface waves; this extension allows an evaluation with Lamb waves. LÄS MER
10. Modelling of Stiffness and Hygroexpansion of Wood Fibre Composites
Sammanfattning : Paper 1The eld of research involving the analytical modelling of the stiff ness and hygroexpansion of composite material is reviewed. This paper can be regarded as an introduction to the area of the mechanics of composite materials in general and to wood fibre composites in particular. LÄS MER