Sökning: "Concrete Crack Detection"

Hittade 4 uppsatser innehållade orden Concrete Crack Detection.

1. 1. Numerical method to investigate and assess the capacity of a damaged concrete structure : Using image analysis and advanced concrete modeling

   Master-uppsats, KTH/Bro- och stålbyggnad

   Författare :Zakariya Benosmane; [2022]
   Nyckelord :Damaged Concrete Structure; Extended Finite Element Method XFEM ; Concrete Dam- aged Plasticity CDP ; Photogrammetry; Crack Detection Methods.;

   Sammanfattning : Concrete has for decades been one of the main materials used to construct important structuressuch as dams and bridges. However, after years of service, the concrete structuresstart deteriorating and signs of damages start showing on the structure. LÄS MER

3. 2. Automatic Crack Detection in Sand Molds Using Image Processing and Convolutional Neural Networks

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

   Författare :Tim Andersson; [2022]
   Nyckelord :automatic crack detection; convolutional neural network; image processing; sand casting;

   Sammanfattning : Sand casting is used to manufacture large metal workpieces. The processing is executed by pouring molten metal into a sand mold. During the process, the mold is subjected to mechanical and thermal stress. It is of economic interest to inspect the molds for defects that can affect casting results, in the worst case leading to discarded products. LÄS MER

4. 3. A machine learning analysis of photographs of the Öresund bridge

   Kandidat-uppsats, Högskolan Kristianstad/Avdelningen för datavetenskap; Högskolan Kristianstad/Fakulteten för ekonomi

   Författare :Martijn de Redelijkheid; Kristian Kokoneshi; [2020]
   Nyckelord :Machine Learning; Image Processing; Structural Health Management; Neural Networks; Convolutional Neural Networks; Concrete Crack Detection; Öresund Bridge;

   Sammanfattning : This study presents an exploration of several machine learning and image processing theories, as well as a literature review of several previous works on concrete crack detection systems. Through the literature review a system is selected and implemented with the Öresund bridge photograph collection. LÄS MER

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

   Master-uppsats, KTH/Bro- och stålbyggnad

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

   Sammanfattning : 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. LÄS MER