Sökning: "Drop weight testing"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Drop weight testing.
1. Constitutive equations for concrete materials subjected to high rate of loading
Sammanfattning : Continuum mechanics is used to model the mechanical behaviour of concrete structures subjected to high rates of loading in defence applications. Large deformation theory is used and an isotropic elastic-plastic constitutive equation with isotropic hardening, damage and strain rate dependent loading surface. LÄS MER
2. Damage Tolerance of Impacted Composite Sandwich Structures
Sammanfattning : This thesis deals with damage tolerance of impacted sandwich structures for load bearing applications. Composite sandwich structures find wide application as lightweight solutions in aerospace components, since weight reduction and less fuel emissions are primary concerns for aircraft manufactures. LÄS MER
3. Blast and Impact Loaded Concrete Structures - Numerical and Experimental Methodologies for Reinforced Plain and Fibre Concrete Structures
Sammanfattning : For decades the focus of civil protection has been on civil defence shelters to withstand the threat of warfare and protecting civilians. In latter years, the general focus has often shifted towards the protection of specific targets that host functions important to society. LÄS MER
4. Test Methods for Characterising Ore Comminution Behavior in Geometallurgy
Sammanfattning : Comminution test methods used within mineral processing have mainly been developed for selecting the most appropriate comminution technology for a given ore, designing a grinding circuit as well as sizing the equipment needed. Existing test methods usually require comparatively large sample amounts and are time-consuming to conduct. LÄS MER
5. Material Properties of Bulk Hydrophobic Concrete in a Nordic Environment
Sammanfattning : Concrete in its unaltered form allows the mass transfer of fluids into and out of its microstructure. These fluids can contain detrimental solutes which change the chemistry of the cement paste and/or the corrosion properties of the reinforcement bars, most noticeably hydrogen carbonates (HCO3-), oxygen (O2) and chloride ions (Cl-). LÄS MER