Essays about: "Crack quantification"

Showing result 1 - 5 of 6 essays containing the words Crack quantification.

  1. 1. Investigating Particle Cracking in Single- and Polycrystalline Nickel-Rich Cathodes using In Situ Impedance Spectroscopy

    University essay from Uppsala universitet/Strukturkemi

    Author : Mattias Sjödin; [2021]
    Keywords : Electrochemical surface area; particle cracking; NMC811; transmission-line model; equivalent-circuit fitting; commercial Li-ion batteries;

    Abstract : State-of-the-art Li-ion cathode materials are based on LiMO2 (M=Ni, Mn, Co) layered transition metal oxides (denoted NMC) with Ni-rich composition because of their high specific capacity. Yet, these materials suffer from poor capacity retention due to crack formation during de-/lithiation cycling. READ MORE

  3. 2. Bacteria - based self - healing mortar with bio - plastic healing agents : Comparative analysis on quantification and characterization of self-healing by various experimental techniques

    University essay from KTH/Betongbyggnad

    Author : Rahul Roy; [2020]
    Keywords : Mortar; crack; autonomous healing; bacteria; bioplastic; lactic acid derivatives PLA ; alkanoate derivatives AKD ; internal crack geometry; quantification; characterization; statistical analysis; Bruk; sprickbildning; självläkning; bakteriebaserademedel; bioplast; mjölksyrederivat PLA ; alkanoatderivat AKD ; inre sprickbildning; kvantifiering; karakterisering; statistisk analys;

    Abstract : Crack formation in concrete structures due to various load and non-load factors leading to degradation of service life is very common. Repair and maintenance operations are, therefore, necessary to prevent cracks propagating and reducing the service life of the structures. READ MORE

  4. 3. Identification and quantification of concrete cracks using image analysis and machine learning

    University essay from KTH/Bro- och stålbyggnad

    Author : JUAN CAMILO AVENDAÑO; [2020]
    Keywords : Unmanned Aerial Vehicle; UAV; Convolutional Neural Network; CNN; Crack quantification; Bridge inspection.;

    Abstract : Nowadays inspections of civil engineering structures are performed manually at close range to be able to assess damages. This requires specialized equipment that tends to be expensive and to produce closure of the bridge. Furthermore, manual inspections are time-consuming and can often be a source or risk for the inspectors. READ MORE

  5. 4. A novel platform to quantify crack formation due to root water uptake

    University essay from SLU/Dept. of Soil and Environment

    Author : Susanne Alexandersson; [2019]
    Keywords : soil structure dynamics; root water uptake; crack formation; automatized imaging system;

    Abstract : Soil structure play an important role for a productive and sustainable agriculture. It controls many processes in the soil and has a great impact on soil functions and related ecosystem services. Plants play an important role in soil structure dynamics. READ MORE

  6. 5. Wear mechanisms in austenitic stainless steel drilling : A comprehensive wear study

    University essay from KTH/Materialteknologi

    Author : Alexander Dahlström; [2015]
    Keywords : Austenitic Stainless Steel; Cemented Carbide; Drilling; Wear mechanisms; Adhesive wear; Margin; Cracks.;

    Abstract : This thesis is meant to serve as part of a competence platform for future product development projects at Sandvik Coromant AB, Solid Round Tools Department, Västberga, Sweden. The project objective is to gain generic knowledge of the wear mechanisms that restrict tool lifetime when drilling austenitic stainless steel. READ MORE