Dissertation > Excellent graduate degree dissertation topics show

Prediction of Effective Properties for Metal Matrix Composites and Design of Toplolgy Optimization for Microstructure

Author: ZhangJunHua
Tutor: XieGuiLan
School: Xiangtan University
Course: Materials Processing Engineering
Keywords: Metal Matrix Composites Homogenization Theory Finite Element Ansysis Variable Density Method Topology Optimization
CLC: TB331
Type: Master's thesis
Year: 2009
Downloads: 178
Quote: 0
Read: Download Dissertation

Abstract


As a kind of new and advanced engineering materials, metal matrix composites are developing very fast recently and more and more attention are gained due to their enhanced properties. SiC particle reinforced Al-matrix composites is one of the most attractive composites nowdays, moreover it is the investigative object of perfect composites both in theory and experiment. Firstly,the random distributed model of particle with MATLAB is built, then the macroscopic properties of metal matrix composites are predicted by the homogenization method was combined with finite element method. Program of topology optimization for microstructure is written based on homogenization theory to guide the optimization design of the matirial.The expression for solving the effective properties is deduced in the microscopic system based on asymptotic homogenization theory combined with finite element method. The three dimension cell model of particle random distribution is established. A MATLAB program is written. As an example, SiC particle reinforced Al-matrix composites, macroscopic effective elastic constants of composite are calculated and compared with that obtained by other methods . The results show that homogenization method is feasible to predict the effective elastic constants. The influence of shape the particle, properties, distribution and the volume percentage of the particle on the effective elastic constants of the particle reinforced metal matrix composites are forecasted.The tensile experiment of the metal matrix composites with particle uniform or random distribution is simulated by the finite element method and the contrast analysis between the results of the simulation and prediction is done, so we can know the effective elastic constants obtained from the simulation agree with those gained by the homogenization theory. It shows that the simulated experiment supplied by this paper may be a method for verifying the effective constants of the composites. Topology optimization for microstructure of the composite is presented based on the method of homogenization. Variable density method was taken as material interpolation,the objective was aimed to obtain the minimal compliance and OC method was used as the optimal algorithm. A code is progamed with the ANSYS Parameter Design Language for computing the topology optimization of microstructure of the composite and honeycomb structure is obtained.All of the jobs can provide guidance for design and optimization of the materials.

Related Dissertations

  1. Research on Dimensional Stability of the Submicron Al2O3P/Al Composite,TB331
  2. The Influence of the Dimension Ratio and Scale Effect on Plastic Flow of Cylindrical SiC Reinforced Aluminum Matrix Composites,TB331
  3. Numerical Simulation for Ratcheting of Particle Reinforced Metal Matrix Composites Based on Periodical Boundary Condition,TB331
  4. Simulation and Experimental Study on the Cutting Process of SiC_p/Al Composites,TB331
  5. Damping Capacity of 7075 Aluminum Alloy Base Matrix Composites Reinforced with Bi-Sn Coated Al18B4O33 Whisker,TB332
  6. Friction and corrosion behavior of complex metal alloys ( CMA ) reinforced metal matrix composites ( MMC ),TB331
  7. Design of the Solar Photovoltaic Power Generation System and Research on the Optimal Methods of Power Supply System,TM615
  8. Detection and Surveillance of the Damage for Particle Reinforced Metal Matrix Composites by Ultrasonic Method,O346.5
  9. Research on Ultrasonic Vibration Cutting of Particle Reinforced Aluminum Metal Matrix Composites,TG663
  10. The Effect of Heat Treatment on Damping Capacity of Aluminum Matrix Composites Reinforced with SnO2-Coated Al18B4O33 Whisker,TG174.44
  11. The Fabrication, Characterization and Application of the Metal Matrix Carbon Nanotube Composite,TB383.1
  12. Damping Capacity and Mechanical Property of Aluminum Matrix Composites Reinforced with SnO2-Coated Al18B4O33 Whisker,TB33
  13. Research on Dynamic Compressive and Tensile Properties of SiCp/2024Al Composite,TB331
  14. The Influence of Solidification Conditions on the Microstructure and Properties of SiCp/Al-6Mg Composites,TB33
  15. The Research Methods of Structure Topology Optimization Based on the web Share,TP393.09
  16. Topology Optimization Design for the Thick Plate Transition Layer,TU375.2
  17. Research on Topology Optimization Methods of Continuum Structure Based on Newton Optimality Criterion,TB472
  18. Research of 2-dof Micro-positional Stage About Compliant Mechanism Based on Topology Optimization Method,TH703
  19. Preparation of semi-solid forging bimetallic composite technology,TG249.9
  20. Topological Optimiation Lightweight Design for Aluminum Alloy Semi-trailer Key Structures,U462.2
  21. Research on the Development Technology of Aluminum-plastic Combinative Trunk Lid,U465.6

CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Composite materials > Metal composite materials
© 2012 www.DissertationTopic.Net  Mobile