Effect of Clamping Torque on Large Deflection Static and Dynamic Response of a Cantilever Beam: An Experimental Study

Konagai, Kazuo; Noorzad, Ali; Eskandari‐Ghadi, Morteza

doi:10.18052/www.scipress.com/ijet.15.1

Cited by 5 publications

(3 citation statements)

References 27 publications

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“…The influence parameters have been investigated for their effect on the vibration. Regarding another researcher's works, many related variables such as boundary conditions [10,11], stiffness [12], and shape [13] were either experimentally or analytically investigated for their effect on the deformation under the vibration. Nevertheless, as reported, those variables influenced the deformation, which should be considered in the vibrational study.…”

Section: Introductionmentioning

confidence: 99%

Computational Study of Excitation Controlling Parameters Effect on Uniform Beam Deformation under Vibration

Lap-Arparat

Tuchinda

2023

IJE

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Understanding a structure's behavior is necessary for most applications, especially excitation in ultrasonic applications. Currently, ultrasonic devices are used in various fields and have an essential role in nondestructive testing (NDT). The structure's behavior must be concerned with achieving the best practice. The structural vibrational behavior depends on natural frequency and mode shape. This study attempted to determine the effect of influence parameters on shape deformation for designing the adequate excitation condition. In this study, the influence parameters of a uniform beam, including geometry, support condition, and material, were included to investigate their effect on the frequency, mode shape, and structural response. The result showed the significant influence of a structure's length and support condition on the mode frequency, dramatically decreasing mode frequency for extended installation and cantilever support. This study investigated the three common mode shapes revealed that the longitudinal bending shape dominated due to the loading direction. Therefore, the shape deformation of the structure is mainly governed by the external excitation source, and the high structural response is received by applying the excitation near the antinode position of the vibration. Nevertheless, the computational result showed a good agreement with the analytical validation with less than 1 % error. The study leads to understanding the vibration, which can be further used for either the effective sensor attachment or designing the vibration control of ultrasonic applications.

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Section: Introductionmentioning

confidence: 99%

Computational Study of Excitation Controlling Parameters Effect on Uniform Beam Deformation under Vibration

Lap-Arparat

Tuchinda

2023

IJE

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“…However, practically such ideal clamping is not possible. Hence, finite deformation under finite clamping at the clamped end affects deformation characteristics of clamped practical structures [11]. In addition to the frequently encountered simple, clamped and hinged supports, several machine elements in mechanical engineering applications contain rigid links at boundaries [12].…”

Section: Introductionmentioning

confidence: 99%

Large Deflection of Clamped Curved Beam Under Finite Clamping and Different Combinations of Bending-Stretching

Ghuku

Saha

2020

EST

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The paper experimentally and theoretically analyses large deflection behaviour of clamped curved beam subjected to finite clamping and combined bending-stretching loads. The experimental specimen is clamped around central location under vertically concave and convex orientations. For each specimen settings, clamping is done by two different torque values. Application of vertical end loads on the clamped concave and convex systems produces two different combinations of bending and in-plane loadings. Large deflection behaviour of the experimental system is modelled theoretically considering geometric nonlinearities coming from combined bending-stretching, non-uniform curvature and asymmetric geometry. Effect of finite clamping is incorporated in the theoretical model through equivalent additional end loads. Due to the involved geometric nonlinearities, analysis is carried out through variational energy principle based incremental Lagrangian approach in curvilinear system and transformed into global frame. The semi-analytical model is successfully validated by comparing with the experimental results. The combined theoretical-experimental study addresses practical complication associated with local deformation at boundaries. In addition, the physically plausible theoretical model may be of interest for simulation of many real world structures with complicating system parameters. Moreover, observations on combined effects of curvature, loading combinations and finite clamping may provide reference for design optimization of equivalent engineering structures.

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“…Figure 2 shows the steel plates arrangement for beams specimens. Many previous researches studied the effect of torque [16][17][18][19][20][21][22][23][24][25]. This study is very important to increase the torque capacity to the beams.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Reinforced Concrete Beams with effect of Stiffened Plates

Amli

Shakir

Abdulredha³

et al. 2019

Civ Eng J

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This study presents experimental work including an investigation conducted on five simply supported reinforced concrete beams under pure torsion. First beam without strengthening as a control beam. The other four beams were strengthened externally by bolted thin steel plates. For this test the load was applied gradually. The torque was increased gradually up to failure of the beam. The variables were the thickness and height of the steel plate that was externally connected to both sides of the rectangular reinforced concrete beam. The test results for the beams discussed are based on torque-twist behavior. The experimental results show that the attachment of thin steel plates by mechanical means to beams provides a considerable improvement in the torsional behavior of the reinforced concrete beams. Comparable to the reference beam, the maximum increase in the cracking and the ultimate torque of the composite beam was recorded for the reinforced concrete beam that strengthen by steel plate of (150) mm height, (2mm) thickness and (50mm) spacing between shear connectors (B1). The results revealed that the cracking torque, ultimate torque, global stiffness of beam and beam ductility for all composite beams increase with the increase of the plate's thickness, plate's height.

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Effect of Clamping Torque on Large Deflection Static and Dynamic Response of a Cantilever Beam: An Experimental Study

Cited by 5 publications

References 27 publications

Computational Study of Excitation Controlling Parameters Effect on Uniform Beam Deformation under Vibration

Computational Study of Excitation Controlling Parameters Effect on Uniform Beam Deformation under Vibration

Large Deflection of Clamped Curved Beam Under Finite Clamping and Different Combinations of Bending-Stretching

Behavior of Reinforced Concrete Beams with effect of Stiffened Plates

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