The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform

Nam Quoc Ngo - One of the best experts on this subject based on the ideXlab platform.

  • Shear Force sensing by strain transformation using non-rectilinearly embedded fiber Bragg grating
    Sensors and Actuators A: Physical, 2004
    Co-Authors: Rupali Suresh, Swee Chuan Tjin, Nam Quoc Ngo
    Abstract:

    This paper presents a new method of Shear Force measurement using fiber Bragg grating (FBG) as the sensing element. In this sensor, the FBG is embedded in such a way that the applied Shear strain is transformed as an equivalent axial strain in the embedded fiber. The basic sensor design consists of layers of carbon composite material (CCM) and deformable layer with an embedded FBG at a very small angle. With this embedding technique, a linear variation of the reflected Bragg wavelength shift with the applied Shear Force is observed. The sensor was tested with an applied Force of 40N. A good sensitivity of 81pm/N is found for this sensor, which is suitable for most engineering applications. Failure test of the sensor shows that the sensor can withstand a Maximum Shear Force of 67N. This paper presents the basic principle, the embedding technique and the parametric study of the sensor. © 2004 Elsevier B.V. All rights reserved.

Rupali Suresh - One of the best experts on this subject based on the ideXlab platform.

  • Shear Force sensing by strain transformation using non-rectilinearly embedded fiber Bragg grating
    Sensors and Actuators A-physical, 2004
    Co-Authors: Rupali Suresh, Swee Chuan Tjin
    Abstract:

    This paper presents a new method of Shear Force measurement using fiber Bragg grating (FBG) as the sensing element. In this sensor, the FBG is embedded in such a way that the applied Shear strain is transformed as an equivalent axial strain in the embedded fiber. The basic sensor design consists of layers of carbon composite material (CCM) and deformable layer with an embedded FBG at a very small angle. With this embedding technique, a linear variation of the reflected Bragg wavelength shift with the applied Shear Force is observed. The sensor was tested with an applied Force of 40 N. A good sensitivity of 81 pm/N is found for this sensor, which is suitable for most engineering applications. Failure test of the sensor shows that the sensor can withstand a Maximum Shear Force of 67 N. This paper presents the basic principle, the embedding technique and the parametric study of the sensor.

  • Shear Force sensing by strain transformation using non-rectilinearly embedded fiber Bragg grating
    Sensors and Actuators A: Physical, 2004
    Co-Authors: Rupali Suresh, Swee Chuan Tjin, Nam Quoc Ngo
    Abstract:

    This paper presents a new method of Shear Force measurement using fiber Bragg grating (FBG) as the sensing element. In this sensor, the FBG is embedded in such a way that the applied Shear strain is transformed as an equivalent axial strain in the embedded fiber. The basic sensor design consists of layers of carbon composite material (CCM) and deformable layer with an embedded FBG at a very small angle. With this embedding technique, a linear variation of the reflected Bragg wavelength shift with the applied Shear Force is observed. The sensor was tested with an applied Force of 40N. A good sensitivity of 81pm/N is found for this sensor, which is suitable for most engineering applications. Failure test of the sensor shows that the sensor can withstand a Maximum Shear Force of 67N. This paper presents the basic principle, the embedding technique and the parametric study of the sensor. © 2004 Elsevier B.V. All rights reserved.

Nadarajah Ravichandran - One of the best experts on this subject based on the ideXlab platform.

  • Design and analysis of retaining wall backfilled with shredded tire and subjected to earthquake shaking
    Soil Dynamics and Earthquake Engineering, 2016
    Co-Authors: Shweta Shrestha, Nadarajah Ravichandran, M. Raveendra, J.a. Attenhofer
    Abstract:

    Abstract The applicability of shredded tire as an economical alternative for conventional granular soil backfill for retaining walls was investigated by conducting geotechnical and structural designs as well as finite element simulations. A literature survey was conducted to compile and document the engineering properties of shredded tire. It was found that the key geotechnical engineering properties vary significantly with shred size and shredding method. Then, a gravity-cantilever retaining wall was designed for dynamic loading conditions considering seismic design parameters corresponding to the Charleston, SC area. Geotechnical design revealed a longer toe compared to heel for shredded tire backfill to maintain stability; however, a shorter footing was needed to maintain overall stability compared to that of granular backfill. Conventional designs and finite element simulations showed significant reductions in computed horizontal deflection at the tip of the wall, structural demand in terms of Maximum Shear Force and bending moment, and construction cost in terms of excavation and material when shredded tire was used as the backfill. Upper and lower bound curves of Maximum Shear Force and Maximum bending moment in the stem were also produced based on the results of parametric studies conducted by varying the friction angle and cohesion of shredded tire, and the amplitude and mean period of the input motion.

  • Applicability of shredded tire chips as a lightweight retaining wall backfill in seismic regions
    Geo-Congress 2014 Technical Papers, 2014
    Co-Authors: Nadarajah Ravichandran, Lea Huggins
    Abstract:

    Using shredded tires as an alternative backfill material for retaining walls is an effective method for recycling a common and abundant waste material. In this paper, the engineering properties of the shredded tire from various sources were compiled. Retaining walls were designed for static and seismic conditions using the average properties following load and resistance factor design (LRFD) method and compared with that of conventional granular material. The performance of retaining wall backfilled with shredded tires was then investigated by applying design earthquake acceleration-time histories using advanced finite element software and compared with that of sand backfill. Results show that the shredded tire backfill significantly reduces the wall tip deflection and Maximum Shear Force and bending moment along the wall.

Hiroshi Shima - One of the best experts on this subject based on the ideXlab platform.

  • BEHAVIORS OF L-SHAPE Shear CONNECTOR SUBJECTED TO STRUT COMPRESSIVE Force IN BEAM TYPE TEST SPECIMENS
    2020
    Co-Authors: Hiroshi Shima
    Abstract:

    This study investigates the behaviors of L-shape Shear connector subjected to strut compressive Force in steel-concrete composite structure. It was found that splitting crack in the concrete in front of the Shear connector controlled the Maximum Shear Force on the Shear connector. After crack occurred in the concrete starting from the head of the Shear connector, the Shear connector started to have large displacements until occurrence of splitting crack. Moreover, occurrence of splitting crack was found to reverse the direction of the slip between concrete and steel plate in front of the Shear connector.

  • formulation for Maximum Shear Force on l shape Shear connector subjected to strut compressive Force at splitting crack occurrence in steel concrete composite structures
    Procedia Engineering, 2011
    Co-Authors: R Soty, Hiroshi Shima
    Abstract:

    Abstract This study investigates the performances of L-shape Shear connectors subjected to strut compressive Force in steelconcrete composite structures by means of beam type test method. Experimental data showed that splitting crack occurrence in the concrete in front of the Shear connector controlled the Maximum Shear Force on L-shape Shear connector. An equation to predict the Maximum Shear Force at splitting crack occurrence which is a function of width, height, thickness to height ratio of the Shear connector, and the concrete strength is proposed. Moreover, the horizontal relative displacements of the head of the Shear connector were found to have big increments with small increments of Shear Force after the occurrence of crack in the concrete from the head of the Shear connector. Also, the occurrence of splitting crack in the concrete in front of the Shear connector reversed the slip direction between concrete and steel plate in front of the Shear connector.

Swee Chuan Tjin - One of the best experts on this subject based on the ideXlab platform.

  • Shear Force sensing by strain transformation using non-rectilinearly embedded fiber Bragg grating
    Sensors and Actuators A-physical, 2004
    Co-Authors: Rupali Suresh, Swee Chuan Tjin
    Abstract:

    This paper presents a new method of Shear Force measurement using fiber Bragg grating (FBG) as the sensing element. In this sensor, the FBG is embedded in such a way that the applied Shear strain is transformed as an equivalent axial strain in the embedded fiber. The basic sensor design consists of layers of carbon composite material (CCM) and deformable layer with an embedded FBG at a very small angle. With this embedding technique, a linear variation of the reflected Bragg wavelength shift with the applied Shear Force is observed. The sensor was tested with an applied Force of 40 N. A good sensitivity of 81 pm/N is found for this sensor, which is suitable for most engineering applications. Failure test of the sensor shows that the sensor can withstand a Maximum Shear Force of 67 N. This paper presents the basic principle, the embedding technique and the parametric study of the sensor.

  • Shear Force sensing by strain transformation using non-rectilinearly embedded fiber Bragg grating
    Sensors and Actuators A: Physical, 2004
    Co-Authors: Rupali Suresh, Swee Chuan Tjin, Nam Quoc Ngo
    Abstract:

    This paper presents a new method of Shear Force measurement using fiber Bragg grating (FBG) as the sensing element. In this sensor, the FBG is embedded in such a way that the applied Shear strain is transformed as an equivalent axial strain in the embedded fiber. The basic sensor design consists of layers of carbon composite material (CCM) and deformable layer with an embedded FBG at a very small angle. With this embedding technique, a linear variation of the reflected Bragg wavelength shift with the applied Shear Force is observed. The sensor was tested with an applied Force of 40N. A good sensitivity of 81pm/N is found for this sensor, which is suitable for most engineering applications. Failure test of the sensor shows that the sensor can withstand a Maximum Shear Force of 67N. This paper presents the basic principle, the embedding technique and the parametric study of the sensor. © 2004 Elsevier B.V. All rights reserved.