Essays about: "Growth of cracks"

Showing result 1 - 5 of 22 essays containing the words Growth of cracks.

  1. 1. Brister inom planeringsarbetet enligt skogsmaskinförarna

    University essay from SLU/School for Forest Management

    Author : Agnes Fredholm; [2022]
    Keywords : traktdirektiv; översiktskarta; avlägg;

    Abstract : Till följd av den oro som fanns under 1800-talet, om att skogen skulle ta slut, började Sverige med skogsskötsel. I skogsskötseln ingår bl.a. ett skötselsystem som heter trakthyggesbruk. READ MORE

  3. 2. U - Net Based Crack Detection in Road and Railroad Tunnels Using Data Acquired by Mobile Device

    University essay from KTH/Geoinformatik

    Author : Kepan Gao; [2022]
    Keywords : U-Net; deep learning; tunnel monitoring; structural health monitoring; crack detection; mobile mapping system;

    Abstract : Infrastructures like bridges and tunnels are significant for the economy and growth of countries, however, the risk of failure increases as they getting aged. Therefore, a systematic monitoring scheme is necessary to check the integrity regularly. READ MORE

  4. 3. Fatigue Crack Growth Analysis in Python algorithm with Finite Element Methods : Numerical Simulation of Fatigue Crack Growth

    University essay from Karlstads universitet

    Author : Hasan Majid; [2022]
    Keywords : ;

    Abstract : The goal of this thesis was to construct and develop a python-based finite element computer program for the evaluation of fatigue crack growth rate in notched metallic rods. The simulation was done by implementing elastic stress theory and linear elastic fracture mechanics techniques. READ MORE

  5. 4. Characterization methodology to assess the mechanical properties of delignified birch/PMMA transparent wood biocomposites

    University essay from KTH/Fiber- och polymerteknologi

    Author : Nicolò Arcieri; [2022]
    Keywords : Transparent wood; mechanical properties; fracture toughness; in situ experiments; cohesive zone model; Transparent trä; mekaniska egenskaper; brottsstyrka; in situ-experiment; modell för kohesionszonen;

    Abstract : Transparent trä biokompositer (TW) är en ny attraktiv klass av biokomposit. De är uppbyggda av delignifierat trä som impregnerats med en polymer med matchande brytningsindexet.  TW kan skräddarsys för inom ett brett spektrum av funktionella, optiska och mekaniska egenskaper. READ MORE

  6. 5. Energy and Strength-based Criteria for Intralaminar Crack Growth in Regions with High Stress Gradients

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Anish Niranjan Kulkarni; [2021]
    Keywords : Cross-ply composites; High crack density; Stress gradient; FEM; Stress analysis; Strain Energy Release Rate;

    Abstract : Cross-ply composite laminates can develop very high density of transverse cracks in the 90-layer under severe thermal and mechanical loading conditions. At such high crack densities, two adjacent cracks start to interact, and a stress gradient is created in the region between these cracks. READ MORE