Search for dissertations about: "fracture stiffness"
Showing result 1 - 5 of 85 swedish dissertations containing the words fracture stiffness.
-
1. Hydro-Mechanical Behaviour of a Pressurised Single Fracture: An In-situ Experiment
Abstract : Exploration of ground water resources, grouting, disposal of nuclear waste and extraction of geothermal energy are examples of activities which require consideration of the relationship between effective stress and transmissivity. However, this relationship is poorly understood and very few investigations have been conducted in field scale. READ MORE
-
2. Constitutive Behaviour and Fracture of Adhesive Layers : Inverse Methods and Energetic Balance
Abstract : In the automobile industry, current demands on reduced emissions with maintained or even increased crash worthiness, forces the industry to seek weight-reducing designs. The possibility to use lightweight materials is obviously attractive. At joints, these lightweight materials have to be connected to high-strength or low-cost materials. READ MORE
-
3. The Impact of Fracture Geometry on the Hydromechanical Behaviour of Crystalline Rock
Abstract : Effective construction of tunnels in fractured crystalline rock requires a unified approach for handling rock mechanics and hydrogeological issues. Traditionally, rock mechanics and hydrogeology not only use different nomenclature, they also measure parameters such as e.g. aperture differently. READ MORE
-
4. A Network Model Applied to Cellulose Fibre Materials
Abstract : A network mechanics model for analysis of materials made of dry-shaped cellulose fibres is proposed. In terms of the model, the network is composed of fibres of arbitrary distribution in length, curvature, cross-section. stiffness and strength. The fibres are arranged in a random structure according to an arbitrary orientation distribution. READ MORE
-
5. Hydromechanical Behaviour of Fractures Close to Tunnels in Crystalline Rock
Abstract : The deformation and stiffness properties of rock fractures are important measurable parameters when describing their hydromechanical behaviour. Deformation refers to aperture change. Stiffness refers to the amount of deformation per stress change to which a fracture is subjected. READ MORE