Search for dissertations about: "Crack development"

Showing result 16 - 20 of 131 swedish dissertations containing the words Crack development.

  2. 16. Crack growth and development of fracture zones in plain concrete and similar materials

    Author : Per-Erik Petersson; Avdelningen för Byggnadsmaterial; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tensile strength; finite element method; test methods; fracture energy; fracture mechanics; concrete; cracking; finita element; brottmekanik; beräkningsmetoder; oarmerad betong; sprickutbredning; sprickor; betong; fracture zone; tensile stress-strain curve;

    Abstract : [abstract missing].... READ MORE

  4. 17. Fatigue crack growth in fiber metal laminates : experiment and modeling

    Author : Per Hofslagare; Michel van Tooren; Linköpings universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Fiber Metal Laminates (FML) is a class of materials with highly resistant fatigue behavior, developed primary for the aerospace industry. The laminates are comprised of alternating layers of high strength aluminwn sheet and fiber reinforced polymers. READ MORE

  5. 18. Small-scale Experiments for Blast-induced Damage: Exploring crack propagation through Digital Image Correlation

    Author : Carlota Rodriguez San Miguel; Changping Yi; Nikolaos Petropoulos; Daniel Johansson; Pablo Segarra Catasus; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Small-scale experiments; Blast-induced cracks; Digital Image Correlation; Crack propagation behavior; Mining and Rock Engineering; Gruv- och berganläggningsteknik;

    Abstract : Blasting plays a crucial role in several engineering applications, from mining and tunneling to demolition projects. One of the remaining challenges of this process is that it can significantly affect the integrity of the rock mass by inducing damage in the form of cracks. READ MORE

  6. 19. Thermal crack estimation in early age concrete : models and methods for practical application

    Author : Mårten Larson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Abstract : Control of thermal cracking in young concrete is of great importance to ensure a desired service life time and function of a structure. Making reliable thermal stress estimations, and thereby conclusions about cracking risks, involves advanced modelling of material properties and structural restraint. READ MORE

  7. 20. Development of Energy-based Damage and Plasticity Models for Asphalt Concrete Mixtures

    Author : Ibrahim Onifade; Björn Birgisson; Linbing Wang; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy-based models; damage; X-ray computed tomography; continuum plasticity mechanics CPM; effective micro-crack stress; Transportvetenskap; Transport Science;

    Abstract : Characterizing the full range of damage and plastic behaviour of asphalt mixtures under varying strain-rates and stress states is a complex and challenging task. One reason for this  is partly due to the strain rate and temperature dependent nature of the material as well as the variation in the properties of the constituent materials that make up the composite asphalt mixture. READ MORE