Essays about: "Crack growth"

Showing result 1 - 5 of 45 essays containing the words Crack growth.

  1. 1. Effect of dwell (hold) time on high temperature fatigue crack growth of AM components

    University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Author : Hemanth Venkatesan; [2023]
    Keywords : Dwell time; creep; fatigue; IN718; LPBF; hold time; sustained loading; Uppehållstid; krypning; utmattning; IN718; LPBF; hålltid; ihållande belastning;

    Abstract : GKN Aerospace AB, Sweden (GAS) is one of the leading companies taking up the charge in manufacturing components using Additive Manufacturing(ed) (AM) techniques in the aerospace sector. They are a hub of engineering and they are a supplier of engine and engine components to the world’s leading aero-engine manufacturers, and airframes to civil and military aircraft manufacturers. READ MORE

  3. 2. Development of thick GaN and AlGaN drift layers for vertical power devices

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Andri Dhora; [2023]
    Keywords : Technology and Engineering;

    Abstract : High-quality, thick III-nitride epitaxial drift layers with controlled doping are needed for next-generation highly efficient vertical power devices for a smart grid applications and electrification of mobility. Achieving desirable material properties, such as low background impurity concentrations and reduced dislocation densities in combination with high growth rates, necessary for practical application present a challenge. READ MORE

  4. 3. 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

  5. 4. 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

  6. 5. Developing a passwordgenerating software : Regarding password memorability and security

    University essay from KTH/Hälsoinformatik och logistik

    Author : Anton Mogaddam; Khan Muhammad; [2022]
    Keywords : Passwords; keyboard patterns; password memorability; Python; Hashcat; Lösenord; tangentbords mönster; minnesvärdhet för lösenord; Python; Hashcat;

    Abstract : With the growth of digital information and technology, more websites require user authentication to access individuals' sensitive information. The main form of authentication are passwords which if chosen unwisely can easily be guessed or cracked by someone else. This is why it is important to create safe yet memorable passwords. READ MORE