Search for dissertations about: "Composite Structures"

Showing result 1 - 5 of 204 swedish dissertations containing the words Composite Structures.

  1. 1. Guided wave-based approach for health monitoring of composite structures; Application to wind turbine blades

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Siavash Shoja; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; structural health monitoring; composite structures; wind turbine blades; design optimization; ice detection; Guided wave propagation; numerical simulations;

    Abstract : The use of composite materials has increased in manufacturing of large structures. These structures can be subjected to different types of defects, for which detection has always been a challenge. READ MORE

  2. 2. Residual stresses and shape distortion in composite structures

    University dissertation from Luleå : Luleå tekniska universitet

    Author : J. Magnus Svanberg; [2000]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymeric Composite Materials; Polymera konstruktionsmaterial;

    Abstract : High performance composites usually consist of continuous fibres and a thermoset matrix. One well-known example from the aerospace industry is carbon fibre epoxy composites. For that reason the manufacturing processes of thermoset composites are subject to extensive research. READ MORE

  3. 3. Prefabricated composite bridges a study of dry deck joints

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Robert Hällmark; Luleå tekniska universitet.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Civil engineering and architecture - Building engineering; Bridge construction; prefabrication; monitoring; Samhällsbyggnadsteknik och arkitektur - Byggnadsteknik; Stålbyggnad; Steel Structures;

    Abstract : This thesis deals with prefabricated composite bridges in general, and prefabricated concrete deck elements with dry joints in particular.As outlined in Paper I and Chapter 2 prefabrication has several advantages over in situ construction, and has hence been discussed for decades in the construction business. READ MORE

  4. 4. Opportunities for Weight Reduction in Composite Marine Structures

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Luis Felipe Sanchez Heres; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; material characterization; ultimate limit state; composites; lightweight design; non-crimp fabrics;

    Abstract : Composite marine structures are desirable for a variety of reasons. Compared to traditional steel structures, they enable the construction of vessels with lower fuel consumption, higher top speed, better stability, lower maintenance, higher cargo capacity, or combinations thereof. READ MORE

  5. 5. Damage Tolerance of Impacted Composite Sandwich Structures

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Moeen ud din Saeed Rajput; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; composite sandwich; cellular; polymer; material characterization; modulus; non-crimp fabric; low velocity impact; vibration; uncertainty analysis; drop-weight impact; fractography; barely visible impact damage; X-ray microtomography; compression-after-impact; bending-after-impact; high speed image processing; damage resistance; damage tolerance; Aerospace Engineering; Flyg- och rymdteknik;

    Abstract : This thesis deals with damage tolerance of impacted sandwich structures for load bearing applications. Composite sandwich structures find wide application as lightweight solutions in aerospace components, since weight reduction and less fuel emissions are primary concerns for aircraft manufactures. READ MORE