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    Wyświetlanie 1-3 z 3
    Tytuł:
    Damage and fracture analysis of bolted joints of composite materials based on peridynamic theory
    Autorzy:
    Yang, Na-Na
    Zhao, Tian-You
    Gu, Ji-Guang
    Chen, Zhi-Peng
    Powiązania:
    https://bibliotekanauki.pl/articles/258888.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    peridynamic theory
    composite material
    damage and fracture
    joints
    Opis:
    It is clear that the advantages of fibre glass-reinforced plastics surpass those of steel, but the failure analysis of composite structures is much more complex than that of isotropic materials as composite materials may fail in a variety of ways. In order to simulate the damage and fracture of bolted joints of fibre reinforced composite, the bond-based peridynamic method suitable for elastic, brittle and anisotropic characteristics of composite material is used. The peridynamic model for composite laminate is validated by the finite element method. Then a peridynamic program of composite damage is applied to calculating the damage of bolted joint structure and the damage propagation process and failure mode of the structure is obtained.
    Źródło:
    Polish Maritime Research; 2019, 2; 22-32
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental study of dam-break-like tsunami bore impact mechanism on a container model
    Autorzy:
    Chen, Cheng
    Chen, Jun
    Lin, Peng
    Chen, Chiwei
    Chen, Haozhe
    Powiązania:
    https://bibliotekanauki.pl/articles/260608.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    tsunami bore
    dam break
    container
    Froude number
    movement distance
    coast slope
    Opis:
    Tsunami disasters have frequently occurred in recent years. More and more researchers are focusing on this topic. To investi-gate the tsunami bore impact mechanism on a container model, a multi-functional slope-changing tsunami flume is built in this study. To simulate a tsunami bore, a dam-break wave was generated by a free-falling gate in a reservoir. A needle water level gauge and a high-speed camera were used to measure the tsunami wave heights and velocities for different storage water levels in the test flume, and the corresponding Froude numbers of tsunami waves were also calculated. The factors af-fecting the movement distance of the tsunami wave impacting the container model are explored in this experiment, and the results show that the movement distance is positively correlated with the storage water level, and negatively correlated with the container density and the coast slope.
    Źródło:
    Polish Maritime Research; 2020, 1; 53-59
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental and numerical studies on the shear stability of ship’s thin plates
    Autorzy:
    Li, Xiaowen
    Zhu, Zhaoyi
    Chen, Qinglin
    Cai, Yingqiang
    Peng, Miaojiao
    Powiązania:
    https://bibliotekanauki.pl/articles/2033266.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    shear stability
    ship’s thin plate
    full-field strain measurement
    buckling
    nonlinear
    Opis:
    The stability of thin plate plays an important role in the design and strength check of ship structure. In order to study the shear stability of ship’s thin plates, in-plane shear buckling tests were carried out using a picture frame fixture and a 3D full-field strain measurement system. The critical buckling load, full-field displacement/strain information, and load-displacement curve were obtained. The finite element model with the frame fixture was established based on ABAQUS, with the eigenvalue buckling analysis and nonlinear buckling analysis being carried out to obtain the mechanical response information of the buckling and post-buckling of the ship’s thin plate. The effectiveness and accuracy of the numerical simulation method are verified by comparing the numerical simulation with the experimental results. On this basis, the critical buckling load obtained by shear test, numerical simulation, and theoretical calculation is analyzed, and the function of the frame shear fixture and its influence on the critical buckling load are defined. The research in this paper provides a useful reference for the testing and simulation of in-plane shear stability of ship’s thin plates.
    Źródło:
    Polish Maritime Research; 2021, 4; 133-141
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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