نتایج جستجو برای: beam like structure

تعداد نتایج: 2206887  

In this paper the damage location in beam like-structure is determined using static and dynamic data obtained using finite volume method. The change of static and dynamic displacement due to damage is used to establish an indicator for determining the damage location. In order to assess the robustness of the proposed method for structural damage detection, three test examples including a static...

A Naghilou G Rezazadeh M Fathalilou, M Jalilpour M Sadeghi S Ahouighazvin

In this paper, the size dependent behavior of the gold micro-switches has been studied. This behavior becomes noticeable for a structure when the characteristic size such as thickness or diameter is close to its internal length-scale parameter. The size dependent effect is insignificant for the high ratio of the characteristic size to the length-scale parameter, which is the case of the silicon...

Journal: :international journal of advanced design and manufacturing technology 0
yahya khatami hamid ahmadian

the problem of crack identification in continuous beam like structures is considered. the cracks’ locations and their depths are identified by employing experimental modal test results performed on the structure. the cracks are modeled using generic elements to include the coupling effects between shear forces and bending moments at the crack section. in the identification procedure eigen- sens...

Journal: :Fracture and Structural Integrity 2021

The dynamic experimental and numerical analysis of cracked beams has been studied with the aim quantifying influence depth crack on response steel beams. Artificial Neural Method ANN used where a simulation was improved in Matlab. A finite element model also developed by using Ansys software, obtained results were compared exact length. study takes into account different hidden layer values ord...

Journal: :Optics express 2010
Sung Rae Lee Jongki Kim Sejin Lee Yongmin Jung Jun Ki Kim K Oh

A Bessel-like beam was generated in a novel all-fiber integrated structure. A concentric ring intensity pattern was achieved by the multimode interference along the coreless silica fiber, which was then focused by the integrated micro-lens to result in a Bessel-like beam. The average beam diameter of 7.5 μm maintained over 500 μm axial length for a continuous wave Yb-doped fiber laser input osc...

Journal: :computational methods in civil engineering 2013
o. yazdanpanah s. m. seyedpoor

in this paper, a crack localization method for euler-bernoulli beams via an efficient static data based indicator is proposed. the crack in beams is simulated here using a triangular variation in the stiffness. static responses of a beam are obtained by the finite element modeling. in order to reduce the computational cost of damage detection method, the beam deflection is fitted through a poly...

As a result of environmental and accidental actions, damage occurs in structures. The early detection of any defect can be achieved by regular inspection and condition assessment. In this way, the safety and reliability of structures can be increased. This paper is devoted to propose a new and effective method for detecting, locating, and quantifying beam-like structures. This method is based o...

2016
Akil Ahmed

System identification is an emerging area in engineering fields. To assess the present health of important structures is necessary to know the status of the health of structure and subsequently to improve the health of the structure. In this work, using the finite element software, a simple structural member like beam is modeled. A simply supported beam is taken and crack is initiated at the bo...

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