FEM Analysis of Shear Deformation Transfer Rate depending on Adhesion Method of a Triangular Shaped Fiber Optic Bending Sensor

Based on the analysis of character of load-transfer of super-long pile, for the purpose of pile settlement control, critical pile length for single friction super-long pile was calculated by Cooke’s shear deformation-transfer model, because the assumption of Cooke’s model is similar with working condition of super-long pile. In the analysis, compression of pile is taken into account. Then, the design chart of critical pile length for super-long pile is provided for normal design index. Lastly, the critical pile length of an engineering example is analysed by the method, the calculated results have agreed well with the field measurement. The analysis show that critical pile length is greatly concerned with ratio of Young’s module of pile and soil, the greater the ratio is, longer the critical pile length is. Pile diameter also affects the critical pile length, the larger the diameter is, longer the critical pile length is. In addition, the critical pile length of super-long pile is concerned with shaft resistance distribution along the pile.

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Fiber Optic Bending Sensor for Water Level Monitoring: Development and Field Test: A Review

IEEE Sensors Journal ◽

10.1109/jsen.2013.2278074 ◽

2013 ◽

Vol 13 (11) ◽

pp. 4113-4120 ◽

Cited By ~ 19

Author(s):

Joao Batista Rosolem ◽

Danilo Cesar Dini ◽

Rivael Strobel Penze ◽

Claudio Floridia ◽

Ariovaldo Antonio Leonardi ◽

...

Keyword(s):

Water Level ◽

Field Test ◽

Fiber Optic ◽

Bending Sensor ◽

Level Monitoring ◽

Water Level Monitoring

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Fiber Optic Bending Sensor Based on Hollow Core Fiber

Frontiers in Optics + Laser Science APS/DLS ◽

10.1364/fio.2019.jw4a.59 ◽

2019 ◽

Author(s):

I. Hernández-Romano ◽

S. Marrujo-García ◽

M. Torres-Cisneros ◽

D. Lopez-Cortes ◽

D. A. May-Arrioja ◽

...

Keyword(s):

Fiber Optic ◽

Hollow Core ◽

Core Fiber ◽

Bending Sensor

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Micro-displacement vibration measurement using a hetero-core fiber optic tip macro-bending sensor

26th International Conference on Optical Fiber Sensors ◽

10.1364/ofs.2018.the90 ◽

2018 ◽

Author(s):

Hiroshi Yamazaki ◽

Michiko Nishiyama ◽

Kazuhiro Watanabe

Keyword(s):

Fiber Optic ◽

Vibration Measurement ◽

Core Fiber ◽

Bending Sensor

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Evaluation of Effect of Sample Size and Layer Direction on Mechanical Property of Specimen Manufactured by FDM-Type 3D Printer

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.794.324 ◽

2019 ◽

Vol 794 ◽

pp. 324-332 ◽

Cited By ~ 1

Author(s):

Hiroyuki Akiyama ◽

Makoto Uchida ◽

Yoshihisa Kaneko

Keyword(s):

Sample Size ◽

Shear Deformation ◽

Young’S Modulus ◽

Strain Distribution ◽

Young's Modulus ◽

Fem Analysis ◽

Bending Test ◽

3D Printer ◽

Experimental Conditions ◽

Bending Load

In the present study, we investigate the effect of the sample size and layer direction on mechanical properties of the specimen fabricated by the FDM-type 3D printer under 4-point bending test. Acrylonitrile-butadiene-styrene (ABS) was employed as a source material. Bending tests were performed under several experimental conditions of layer direction, dimension of the specimens and supporting distance. The relationship between bending load and displacement depended strongly on the layer direction. Young’s modulus increased with increasing supporting distance, particularly, when the filaments were parallel to the loading direction. The strain distribution during the bending test was evaluated by DIC. When the supporting distance was short, strain distribution obtained from DIC became different from the theoretical distribution. This result indicated that the prominent shear deformation occurs in the bending of the printed material when the supporting distance is short. Subsequently, FEM analysis was performed to remove the error in the estimation of Young’s modulus due to the shear deformation, and the correcting equation was proposed.

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