Essays about: "Stress wave velocity"

Showing result 1 - 5 of 6 essays containing the words Stress wave velocity.

  1. 1. Relationship between Shear-Wave Velocity and Consolidation Parameters of Peat

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

    Author : Oskar Markström; [2018]
    Keywords : shear wave velocity; peat; constant rate of strain; consolidation parameters; von Post; Technology and Engineering;

    Abstract : There is a need of developing methods for evaluating material parameters for peat. It is hard and costly to obtain undisturbed samples for laboratory testing of the peat. Therefore, in this thesis the possibility of using in situ measurements of the shear wave velocity for first order estimates of the consolidation parameters has been investigated. READ MORE

  3. 2. Ultrasonic measurement and analysis of screw elongation

    University essay from KTH/Hållfasthetslära (Avd.)

    Author : Anders Pärlstrand; [2018]
    Keywords : ;

    Abstract : Based on the customers' increasing demands on the precision of the preload in a screw joint Atlas Copco is investigating the opportunity to integrate ultrasonic technologies in their industrial tools in order to be able to measure the screw elongation and thereby preload. The preload in a screw joint is important when trying to optimize the joint in terms of weight and life time. READ MORE

  4. 3. Bending properties of commercial wood-based panels by NDT methods

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

    Author : Francesco Poggi; [2017]
    Keywords : Wood-based panels; Non-destructive testing; Bending properties; Resonance vibration; Time-of-flight; Modulus of elasticity; Modulus of rupture; Stress wave velocity; Relative humidity.;

    Abstract : This thesis work focuses mainly on the application of non-destructive testing (NDT) methods on wood-based panels (WBP) in order to estimate the bending properties. To prove the accuracy and applicability of these methods on WBP, their results are correlated with results from a standardized static bending test. READ MORE

  5. 4. Comparison of stress behaviour in thermal barrier coatings using FE analyses

    University essay from Institutionen för ingenjörsvetenskap

    Author : Tobias Hansson; Kristoffer Skogsberg; [2012]
    Keywords : TBC; TGO; FE Analysis; microstructure; surface rougness; residual stresses;

    Abstract : The objective of this thesis project was to compare the stress behaviour in thermal barrier coatings (TBCs) with FE analyses in both 2D and 3D. The main focus was to analyse the vertical stresses in the topcoat (TC) and how they varied in relation to different thicknesses of the thermally grown oxide (TGO), spraying methods of the bondcoat (BC) and the topography of the BC. READ MORE

  6. 5. Ship-Induced Waves and Sediment Transport in Göta River, Sweden

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Jonas Althage; [2010]
    Keywords : turbidity; channel; river; ship-generated waves; sediment transport; erosion; field measurements; shear stress; Technology and Engineering;

    Abstract : Göta River, in Swedish Göta älv, is Sweden’s largest river as to flow rate. The surrounding river valley landscape is also among the most prone to landslides in the country, with cohesive sediments, including quick clay, as the dominant soil type. READ MORE