Essays about: "fracture mechanics of concrete"

Found 4 essays containing the words fracture mechanics of concrete.

1. 1. An Investigation of the breakage process of particles : With help of experimental results and discrete element methods

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Ronni Bashiry; [2021]
   Keywords : Geotechnical Engineering; Breakage; Fracture; Spherical particles; DEM; Modelling; Numerical modelling;

   Abstract : In this study the breakage mechanics of brittle glass marbles was investigated. The pro-cess was to firstly investigate them in laboratory environment. The marbles or specimens was loaded until a crushing breakage occurred in a single point load test called Single Sphere Point load test in this document. READ MORE

3. 2. Reinforced Concrete Structures Subjected to Imposed Deformations: A Study of Cracking due to Shrinkage in Slab Foundations for Residential Houses

   University essay from Lunds universitet/Avdelningen för Konstruktionsteknik; Lunds universitet/Institutionen för bygg- och miljöteknologi

   Author : Henrik Johansson; Martin Heinegård; [2020]
   Keywords : Reinforced concrete structures; nonlinear finite element analysis; crack widths; imposed deformations; shrinkage; foundation slabs; fracture mechanics; Atena 2D; Technology and Engineering;

   Abstract : The need for limiting crack widths in reinforced concrete structures is due to durability, tightness towards gaseous and liquid substances, and for aesthetic reasons. Although concrete cracks at relatively low tensile stresses and can not be avoided, strategies for crack control can be adopted to meet the requirements. READ MORE

4. 3. Weight reduction of concrete poles for the Swedish power line grid : Using a Finite Element Model to optimize geometry in relation to load requirements

   University essay from Linnéuniversitetet/Institutionen för byggteknik (BY)

   Author : Jenny Bülow Angeling; [2017]
   Keywords : Keywords: FE-model; Finite Element model; Concrete damage plasticity; Fracture mechanics; Fracture energy; Pole;

   Abstract : Because of an eventual ban of creosote-impregnated products, alternative materials for poles used in the electrical grid are needed. Concrete is one alternative and spun concrete poles have been manufactured for the Swedish grid before. These poles are still in use since the high strength and good functioning. READ MORE

5. 4. Crack propagation in concrete dams driven by internal water pressure

   University essay from KTH/Betongbyggnad

   Author : Maria Sohrabi; José Sanchez Loarte; [2017]
   Keywords : Concrete cracks; water pressure; concrete dams; crack propagation; finite element analysis; linear elastic fracture mechanics; instrumentation;

   Abstract : Concrete structures are in general expected to be subjected to cracking during its service life. This is the reason why concrete is reinforced, where the reinforcement is only activated after cracks occur. However, cracks may be a concern in large concrete structures, such as dams, since it may result in reduced service life. READ MORE