Temat: triangular element - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Another six-node triangular element for structural analysis
Autorzy:: Ton-That, Hoang Lan
Tematy:: finite element method
FEM
double interpolation procedure
six-node triangular element; Pokaż więcej
Wydawca:: Instytut Podstawowych Problemów Techniki PAN
Powiązania:: https://bibliotekanauki.pl/articles/38887867.pdf Link otwiera się w nowym oknie
Opis:: A six-node triangular element is presented in this paper for structural analysis. With this approach, the approximation functions of the interpolation strategy are given by using the double interpolation procedure, which includes nodal values as well as averaged nodal gradients. The numerical results are, therefore, achieved following the proposed element. The efficiency of this element and its comparison is described by some fundamental examples. Better numerical solutions and smoother distributions of stresses not achieved by the standard elements will be provided when using this element. The computational time is also presented to overview the pros and cons of the proposed element. In fact, the new element’s computational time is higher than that based on the standard element because of the double interpolation procedure, but one does not need post-processing of any smoothing operation.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Innovative triangular plate elements for enhanced plate bending analyses
Autorzy:: Karimi Pour, Arash
Noroozinejad Farsangi, Ehsan
Tematy:: triangular element
plate benchmark
precise stress
finite element method
variational principle
element trójkątny
płyta wzorcowa
dokładne naprężenie
metoda elementów skończonych
zasada wariacyjna; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/59111172.pdf Link otwiera się w nowym oknie
Opis:: The performance of triangular elements satisfying either compatibility or incompatibility conditions in the plate bending analyses is of great importance. To achieve highly accurate responses, four elements are formulated for the structural analysis in this study. All of these elements have thirteen nodes with different degree-of-freedom arrangements. Two of them are displacement-based compatible triangular elements, which are named Karimi Pour Compatible Triangular (KCT) and Noroozinejad Compatible Triangular (NCT) elements. Besides, the other two stress-based incompatible triangular elements are also suggested with the names of Karimi Pour Incompatible Triangular (KIT) and Noroozinejad Incompatible Triangular (NIT) elements. In this study, several benchmark problems are solved by using four proposed elements. These structures were previously analyzed by analytical or numerical schemes. Findings clearly indicated the improvement of answers, when various behaviors of the plate bending structures were studied. Additionally, it is concluded that the solution time is considerably declined if the recommended stress-based elements are utilized.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Parallel Algorithms for Forward and Back Substitution in Linear Algebraic Equations of Finite Element Method
Autorzy:: Fialko, Sergiy
Tematy:: finite element method
multithreaded parallelization
sparse symmetric matrices
triangular solution; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/308616.pdf Link otwiera się w nowym oknie
Opis:: This paper considers several algorithms for parallelizing the procedure of forward and back substitution for high-order symmetric sparse matrices on multi-core computers with shared memory. It compares the proposed approaches for various ﬁnite-element problems of structural mechanics which generate sparse matrices of diﬀerent structures.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Non-contact surface thermal deformation measurement based on chromatic confocal sensor
Autorzy:: Mao, Xiaoxiao
Xing, Zhiming
Zhao, Bin
Sun, Fei
Gao, Xiumin
Tematy:: chromatic confocal sensor
laser triangular displacement sensor
thermal deformation measurement
finite element method; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/58970429.pdf Link otwiera się w nowym oknie
Opis:: Chromatic confocal sensors are widely used in chip processing, high-precision instrument manufacturing, industrial testing and other fields because of high-precision displacement recognitioncapabilities. This research combines a chromatic confocal device with resistance temperature detector for dynamic deformation measurement of heating pipeline. The system is suitable for the measuring range of 300 µm and resolution can reach 0.3 µm. Using finite element method to simulate thermal deformation of aluminium with a thickness of 2 mm, and obtaining simulation trends and results. The end face of aluminium is heated continuously and uniformly in experiment, recording the data of spectral, laser triangular displacement sensor, and temperature sensor at 10°C intervals, respectively. And using Gaussian fitting algorithm to obtain spectral peaks, the corresponding thermal deformation is obtained through the relationship between wavelength and axial displacement. The results show that the experimental data of the chromatic confocal sensor is consistent with the laser triangular displacement sensor basically, with a maximum standard deviation of 1.06. In addition, simulation and experimental trends are consistent.
Dostawca treści:: Biblioteka Nauki

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