Results 41 to 50 of about 14,611,742 (406)
Study on overburden structure and working resistance of supports in deep buried coal seam
Meikuang Anquan, 2023 In view of the characteristics of complex overburden structure and strong mining pressure in deep coal seam working face with large mining height, taking Yangchangwan Coal Mine as the engineering background, the mechanical model of overburden rock ...
LIU Hongtao, HAN Zhou, HAN Zijun, YANG Zhihua, HE Weisheng, WANG Sichen, LUO Zilong
doaj +1 more source
Damage Identification Method of Beam Structure Based on Modal Curvature Utility Information Entropy
, 2020 Generally, the damage of the structure will lead to the discontinuity of the local mode shape, which can be well reflected by the modal curvature of the structure, and the local information entropy of the beam structure will also change with the ...
C. Xiang +3 more
semanticscholar +1 more source
Advanced beam theories for the analysis of beam structures [PDF]
, 2021 Η παρούσα διδακτορική διατριβή αποτελεί συμβολή στην ανάπτυξη εξελιγμένων θεωριών δοκού για την ανάλυση ραβδωτών φορέων. Οι εξελιγμένες θεωρίες δοκού που αναπτύχθηκαν λαμβάνουν υπόψη φαινόμενα γενικευμένης στρέβλωσης (διατμητική υστέρηση λόγω κάμψης και στρέψης), διαστρέβλωσης (παραμόρφωση διατομής – distortion), ενώ πραγματοποιείται και γεωμετρικά μη ...
openaire +2 more sources
Structured air lasing of N2+ [PDF]
Commun Phys 6, 97 (2023), 2023 Structured light has attracted great interest in scientific and technical fields. Here, we demonstrate the first generation of structured air lasing in N2+ driven by 800 nm femtosecond laser pulses. By focusing a vortex pump beam at 800 nm in N2 gas, we generate a vortex superfluorescent radiation of N2+ at 391 nm, which carries the same photon orbital
arxiv +1 more source
Finite Element Coding of Functionally Graded Beams under Various Boundary and Loading Conditions
Journal of Applied Research on Industrial Engineering, 2017 Detailed formulation and coding of exact finite element is carried out to study the static behavior of a layered beam structure. The beam element is modelled based on the first-order shear deformation theory and it is assumed to be composed of three ...
Othman Al-Hawamdeh +2 more
doaj +1 more source
Transfer matrix method for elastic-plastic problem of space-curved beam structure
Nihon Kikai Gakkai ronbunshu, 2019 Problems of space-curved beam structures have been extensively studied by many researchers. Stress analyses for the structural problems are conducted based on a finite element method, boundary element method, or frame structure method.
Sho-ichi KURODA +2 more
doaj +1 more source
Multi-Damage Detection for Steel Beam Structure [PDF]
Journal of Rehabilitation in Civil Engineering, 2016 Damage detection has been focused by researchers because of its importance in engineering practices. Therefore, different approaches have been presented to detect damage location in structures.
Reza Farokhzad +3 more
doaj +1 more source
Pseudo-Static Test of Steel-Glulam Composite Beam-to-Column Exterior Joints [PDF]
Archives of Civil Engineering, 2021 Steel-glulam structure is a new type of composite structure,glulam have lateral support effect on steel plate, that can prevent premature buckling of steel plate and improve the stability of steel structure.
Shaowei Duan +3 more
doaj +1 more source
Numerical Analysis of a New Block-Type Rail Bearing Beam for the Mid-Low-Speed Maglev Train
Advances in Civil Engineering, 2021 In this study, a new block-type rail bearing beam is presented, which consists of a cast-in-place base and prefabricated blocks. The finite element analysis is conducted to assess the proposed new rail bearing beam structure. The performed finite element
Wubin Wang +4 more
doaj +1 more source
Dispersion and localisation in structured Rayleigh beams
International Journal of Solids and Structures, 2014 18 pages, 11 ...
Piccolroaz, Andrea, Movchan, A. B.
openaire +3 more sources