Dissertation > Excellent graduate degree dissertation topics show

Application of Cellular Automata to the Simulation Test of Concrete under Dynamic Load

Author: JinSheng
Tutor: YuanFang
School: Tianjin University
Course: Structural Engineering
Keywords: Automatic Cellular Multiple random equivalent truss model Numerical Simulation Uniaxial impact test Triaxial impact test
CLC: TU311.3
Type: Master's thesis
Year: 2010
Downloads: 17
Quote: 0
Read: Download Dissertation

Abstract


Inhomogeneity of concrete materials , discrete and phase material boundary crack lead to complex mechanical properties of concrete materials , mostly concrete macro-mechanical properties of materials idealized as a homogeneous continuum for this method under static load the mechanical properties of concrete research has better applicability . Concrete materials under impact loading will exhibit different characteristics under static load . Impact load test is the primary means of dynamic mechanical properties , and the inadequacies of the high cost , the shape of the test model , size requirements , load , difficult to control , due to the limitations of the test equipment and test technology , the discrete nature of the test results than large. Traditional numerical simulation divided into a large number of calculations the unit described various defects concrete delicate and complex calculation . Provides a new way based on the the automatic cellular machine theory of multiple random equivalent truss model to describe the mechanical properties of concrete material under impact loading , the model by the method of increasing contact between the unit rather than the number of units , at the mesoscopic level achieve unevenness description of materials , control of the number of nodes, and to shorten the calculation time . The article studies the under impact loading multiple random equivalent truss model parameters: the ultimate strength of the rod member , the ultimate strength of the variance value of the lever member , the lever member elastic modulus , damping coefficient . The impact of these parameters on the results of numerical experiments , uniaxial and triaxial loading test model used to simulate the concrete impact damage test . The numerical simulation results and experimental results are in good agreement , and to prove the validity of the numerical experiments , thus proving multiple random equivalent truss model described the concrete material impact on the mechanical properties of loads applicability for the simulation of concrete under impact loading further the study provides a theoretical basis .

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study on Springback of High-Strength Steel Stamping,TG386
  3. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  4. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  5. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  6. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  7. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  8. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  9. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  10. Numerical Simulation of Biomass Direct Reburning,TK16
  11. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  12. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  13. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  14. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23
  15. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  16. Numerical Simulation and Contrastive Analysis of Labyrinth Seals and Leaf Seals,TK263.2
  17. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  18. The Design and Performance Simulation of External Valve Small Displacement Pump,TE933.3
  19. Analysis of the Impact of Tailings Dam Stability under Seepage Role,TV649
  20. Study on Hydraulic Fracturing of Low Permeability Reservoir,P618.13
  21. Numerical Simulation and Experimental Study of Air-Assisted Sprayer of Orchard,S491

CLC: > Industrial Technology > Building Science > Building structure > Structure theory to calculate > Structural Mechanics > Structural Dynamics
© 2012 www.DissertationTopic.Net  Mobile