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    Wyświetlanie 1-5 z 5
    Tytuł:
    Hygrothermoelastic buckling response of composite laminates by using modified shear deformation theory
    Autorzy:
    Kazemi, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/949126.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    angle-ply laminate
    buckling
    composite plate
    finite element method
    shear deformation theory
    Opis:
    In this study, a finite element based formulation is developed for analyzing the buckling and post-buckling of composite laminates subjected to mechanical and hygrothermal loads using Modified Hyperbolic Shear Deformation Theory (MHSDT). The changes in the critical buckling load are presented for different lamination schemes, thicknesses, material properties and plate aspect ratios. In addition, post buckling analysis is performed for a composite plate subjected to uniform in-plane thermal and moisture induced loadings by using MHSDT. Matlab software has been used for programming the analysis. The results obtained by Matlab codes are in a satisfactory consistence compared to the references. Thus, the developed MHSDT has been validated for buckling and post buckling analysis of laminated plates in hygrothermal environment.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2018, 56, 1; 3-14
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    English Temperature and moisture effect on laminated rhombic hyperbolic paraboloid
    Autorzy:
    Chaubey, Abhay
    Kumar, Ajay
    Grzegorczyk-Frańczak, Małgorzata
    Szafraniec, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/390903.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
    Tematy:
    temperature
    moisture concentration
    laminated
    skew angle
    ply orientation
    Opis:
    The current work presents a hygrothermal analysis of laminated composite rhombic hyperbolic paraboloids. The cubic variation in displacement field together with cross curvature effects of the shell were used to solve the hygrothermal problem. Because of the parabolic variation of the transverse shear deformation, the shear correction factor was not necessary in this paper. In the mathematical model, the zero conditions of the transverse shear stress at the bottom and top of the shell were applied. The nine-noded curved isoparametric element with seven unknowns in each node was used to implement the present realistic mathematical model. The implementation of the finite element C0 (FE) of the present mathematical model was coded and performed in FORTRAN. The skew hyperbolic paraboloid on which the hygrothermal analysis was conducted had various temperatures, ply orientation, curvatures, moisture concentration, boundary conditions and thickness ratio. The paper shows that with the increase of the skew angle, the non-dimensional deflection decreases, and with the increase of moisture concentration, hygrothermal load and curvature ratio, the deflection increases. The results of the model presented in the paper were compared with other results published in the literature and were found to be consistent with them.
    Źródło:
    Budownictwo i Architektura; 2019, 18, 4; 23-40
    1899-0665
    Pojawia się w:
    Budownictwo i Architektura
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Failure analysis of laminated composite plate under hygro-thermo mechanical load and optimisation
    Autorzy:
    Choudhury, A.
    Mondal, S. C.
    Sarkar, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/264515.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    współczynnik wytrzymałości
    kompozyt hybrydowy
    obciążenia
    first ply failure load
    last ply failure load
    strength ratio
    fiber orientation angle
    hybrid composite
    Opis:
    Failure analysis of laminated composite plates for different mechanical, thermo mechanical and hygro-thermo mechanical loads for different ply thicknesses, stacking sequences, fiber orientation angles and composite material systems is presented in the paper. A comparative study of different failure theories is also presented in the paper. The effect of fiber orientation angles on the first ply failure load is also studied. A hybrid composite laminate is developed based on the first ply failure load which minimizes weight and cost. The last ply failure load based on fully discounted method is calculated for different stacking sequences. An optimum composite material system and laminate layup is studied for a targeted strength ratio which minimizes weight.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2019, 24, 3; 509-526
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    First ply failure analysis of laminated composite beam for different boundary conditions under thermo mechanical loading
    Autorzy:
    Choudhury, Arnab
    Mondal, Samar Chandra
    Sarkar, Susenjit
    Powiązania:
    https://bibliotekanauki.pl/articles/264855.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    współczynnik wytrzymałości
    włókno
    współczynnik kształtu
    kompozyty
    first ply failure load
    fiber orientation angle
    aspect ratio
    hybrid composite beam
    strength ratio
    Opis:
    Failure analysis of a laminated composite beam subjected to uniformly distributed load and thermal load is studied for different boundary conditions and fiber orientation angles, based on first ply failure load. Three different boundary conditions are studied: simply supported, fixed-fixed and fixed-free. The strength ratio is computed and compared for different failure theories. The effect of fiber orientation angle and aspect ratio on the strength ratio based on first ply failure load is presented in the paper. The strength ratio and transverse deflection are determined for Graphite/Epoxy and Glass/Epoxy composite and their hybrid combinations to find out the optimum hybrid composite beam with minimum weight, deflection and cost. The problem is solved in MATLAB platform. The mode of failure of the composite beam is determined by using maximum stress theory.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2020, 25, 1; 12-26
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of the Bending Resistance Properties of Carbon Fiber/Foam Sandwich Structural Composites with Different Laying Angles
    Autorzy:
    Zhu, Lvtao
    Cao, Shengbin
    Zhang, Xiaofeng
    Shen, Wei
    Zhu, Chengyan
    Powiązania:
    https://bibliotekanauki.pl/articles/2171959.pdf
    Data publikacji:
    2022
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    sandwich structure
    composite
    carbon fibre
    ply angle
    three-point bending
    Opis:
    This research aimed to explore the influence of fiber laying angles on the bending resistance properties of carbon fiber/foam sandwich structural composites. Four kinds of composites with the following laying angles: [0°]8, [0°/45°/90°/-45°]s, [0°/90°]4 and [45°/-45°]4 were prepared and tested in three-point bending experiments. The results obtained showed that the bending resistance performance was the best when the laying angle was [0°]8, while it was the worst when the laying angle was [45°/-45°]4. Besides, it was found that the tensile performance was the best when the fibers were arranged in the 0° direction when the strength utilisation rate was the highest. In addition, by observing the failure morphologies of the composites, the delamination and foam cracking were found in the four groups of composites. In contrast, the phenomenon of significant fracture was found on composites with a laying angle of [45°/-45°]4 only, indicating it had a poor bending resistance performance.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2022, 2 (151); 75--81
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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