The finite element analysis and experimental study of beams with active constrained layer damping treatments

2004 ◽  
Vol 278 (1-2) ◽  
pp. 343-363 ◽  
Author(s):  
Yinming Shi ◽  
Hongxing Hua ◽  
Hugo Sol
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Constrained Layer Damping ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Active Constrained Layer Damping ◽  
Damping Treatments ◽  
Active Constrained Layer

Mathematical Modeling and Experimental Study on Electrochemical Deburring of Miniature Holes

2013 ◽  
Vol 721 ◽  
pp. 382-386 ◽  
Author(s):  
Ze Fei Wei ◽  
Xing Hua Zheng ◽  
Zi Yuan Yu
Keyword(s):  
Mathematical Modeling ◽  
Experimental Data ◽  
Mathematical Model ◽  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Electrochemical Machining ◽  
Current Density Distribution ◽  
Element Analysis ◽  
The Finite Element Analysis

The paper mainly focused on burr removal of the miniature hole drilled on aluminum plate by electrochemical machining. A mathematical model for the electrochemical deburring of miniature holes (M-ECD) was established based on the finite element analysis to the current density distribution. Both theoretical analysis and experimental study were held on the effects of many factors to the deburring results. The results proved that predictions based on our mathematical model were agreed with the experimental data comparatively.

Pressure Capacity Study of Φ100 Reinforced Thermoplastic Pipe

2019 ◽  
Vol 944 ◽  
pp. 867-872
Author(s):  
Lin Wang ◽  
Yu Ran Fan ◽  
Peng Song
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Small Deviation ◽  
Experimental Result ◽  
Burst Pressure ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Simulation Results ◽  
Structural Layer

The pressure capacity of reinforced thermoplastic pipe was studied by the finite element analysis and experimental study using Φ100 reinforced thermoplastic pipes. The simulation results illustrated that the failure mode of reinforced thermoplastic pipe under internal pressure was the break of glass fiber belt in structural layer. Moreover, the simulated burst pressure fitted well with the experimental result, the small deviation between two results may be resulted from the process defects of RTP.

The Finite Element Analysis and Experimental Study of Fly Ash Embankment Reinforcement

2012 ◽  
Vol 188 ◽  
pp. 193-198
Author(s):  
Hu Mei Wang ◽  
Yang Wang ◽  
Lin Huang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Fly Ash ◽  
Model Experiment ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Positive Effect

This paper presents the effect of two-directional reinforced with geogrid on the performance of embankment, and carries out model experiment and numerical simulation on fly ash embankment. Finally, the curve of relationship among the embankment deformation, the amount of reinforcement and reinforced position was obtained. In addition, the optimum geogrids-reinforced project was also disscussed. The disscussion has some positive effect on the design of reinforced embankment of fly ash.

Experimental Study and Finite Element Analysis of Reinforced Inorganic Polymer Concrete Beam

2012 ◽  
Vol 193-194 ◽  
pp. 891-896
Author(s):  
Zhe An Lu ◽  
Xin Jin ◽  
Xiao Chun Fan
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Inorganic Polymer ◽  
Polymer Concrete ◽  
Engineering Practice ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Load Function ◽  
Ductility Ratio

The stress behavior of the reinforced inorganic polymer concrete(IPC) beam was discussed, included the load-deflection curve, craze load and ultimate bearing capacity under the static load function through the method of the experimental study and the non-linear finite element analysis. Compared the data of the experiment with the results of the finite element analysis, it indicates that the reinforced IPC beam owns higher ductility ratio and better deformation capacity on the same loading condition. Meanwhile, the cracks of IPC beam develop more slowly than the normal ones, there were less and smaller cracks on IPC beam. The research results offer the theoretical and experimental references for engineering practice and design index of IPC.

scholarly journals Design and Experimental Research on Sealing Structure for a Retrievable Packer

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Yang Liu ◽  
Zhanghua Lian ◽  
Junwen Chen ◽  
Shengping Kuang ◽  
Yisheng Mou ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Theoretical Calculation ◽  
Large Deformation ◽  
Experimental Research ◽  
Element Analysis ◽  
Sealing Performance ◽  
The Finite Element Analysis

In order to reduce the failure accidents of conventional packers, a kind of sealing structure of retrievable packers is designed, which can provide reference for optimizing the sealing performance and pressure capacity of packers. And theoretical calculation and experimental research on their sealing performance and pressure capacity are carried out through the finite element analysis on the contact with large deformation based on Abaqus and experimental study. The results show that the upper packer is subjected to greater stress and mainly plays a sealing role in the sealing process. In order to improve the sealing performance of the packer, the height of the upper and lower packer should be preferentially selected about 60 mm, the height of the middle rubber cylinders should be about 50 mm, and the thickness of the packer should be about 21 mm. The newly designed rubber cylinders can meet 150°C. The newly designed rubber cylinders can meet the sealing function and pressure bearing function under the condition of 10,000 Psi and 150°C. The newly designed rubber cylinder can satisfy the function of sealing and pressure-bearing under 140°C and 10,000 Psi. The whole experiment shows that the capacity of bearing pressure and sealing is stable, which can better meet the requirements of field use.

Experimental and Finite Element Analysis of Stand-Off Layer Damping Treatments for Beams

2007 ◽  
Author(s):  
Jessica M. H. Yellin ◽  
I. Y. Shen ◽  
Per G. Reinhall
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Frequency Response ◽  
Viscoelastic Layer ◽  
Constrained Layer Damping ◽  
Response Functions ◽  
Element Analysis ◽  
Frequency Response Functions ◽  
Damping Treatments ◽  
Passive Constrained Layer Damping

Passive stand-off layer (PSOL) and slotted stand-off layer (SSOL) damping treatments are presently being implemented in many commercial and defense designs. In a PSOL damping treatment, a stand-off or spacer layer is added to a conventional passive constrained layer damping treatment. In an SSOL damping treatment, slots are included in the stand-off layer. A set of experiments using PSOL and SSOL beams in which the geometric properties of the stand-off layer were varied was conducted to analyze the contribution of the stand-off layer to the overall system damping. This set of experiments measured the frequency response functions for a series of beams in which the total slotted area of the stand-off layer was held constant while the number of slots in the stand-off layer was increased for a constant stand-off layer material. Finite element analysis models were developed in ANSYS to compare the predicted frequency response functions with the experimentally measured frequency response functions for the beams treated with PSOL and SSOL damping treatments. In these beams, the bonding layers used to fabricate these treatments were found to have a measurable and significant effect on the frequency response of the structure. The finite element model presented here thus included an epoxy layer between the base beam and the stand-off layer, a contact cement layer between the stand-off layer and the viscoelastic layer, and a method for modeling delamination.

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