Dissertation > Excellent graduate degree dissertation topics show

Property Research and Design of Interply Hybrid Composite and Numerical Simulation Research of Resisitance Performance

Author: ZhaoWei
Tutor: ZhangDongXing
School: Harbin Institute of Technology
Course: Materials Science
Keywords: composite materials finite element simulation fibers of Kevlar protectivedeck
CLC: TB332
Type: Master's thesis
Year: 2012
Downloads: 53
Quote: 0
Read: Download Dissertation


The shelter,which is applied to battle command,defense, observation, shootingand so on in modern war, is still the valid comprehensive military buildup. The portholeof shelter that encircles thick reinforced concrete all around often becomes the weakpoint. Its protection ability determines internal personnel security. This paper is focusedon how to choose protective material, the theoretical analysis of the model and thebullet impact bunkers protection deck by finite element simulation, which is aimed atstudying the protect ability against light weapons.By the comparative studying of four different fiber material properties andconsidering the fiber hybrid effect, comprehensive performance Kevlar fiber waschosen as main reinforced materials and S-2glass fiber is chosen as secondaryreinforced materials. Al2O3ceramic is widely used as protective deck of the panel due toits excellent cost performance. The epoxy resin was chosen as matrix considering therigid and process maturity characteristics.This paper analyzed the residual stress of the ceramic and Kevlar fiber in theorymodel. The compression stress, which is formed under the action of ceramic cone, candamage the bullet. The increase of fiber content and intersection of the node reflects theincreased stress wave. To improve the wave velocity can absorb more energy, whichimproves the performance of the whole protection deck.The impact of the bullet Kevlar composite/ceramic deck was studied by theABAQUS finite element simulation software. The stress and energy change wereresearched during the projectile penetrating deck process, and the results wereconsistent with the theory analysis. Different quantitative values were compared bychanging the different parameters such as fiber layer angle, hybrid ratio of fibers and thenumber of fiber layer. Under the condition of invariable deck thickness, the protectionproperties increased with the fiber layer number. Both S-2glass fiber and Kevlar fiberhave the best hybrid proportion range0.30.7, and0°/30°/60°/90°/-60°/-30°/0°is the best interval piles angle, which has the best protective effect.According to the finite element simulation, structure of the bunker protection deckwas designed. The ABAQUS software was used for the impact resistance numerical simulation, and the results showed that6mm thick Kevlar composite/ceramic armor canresist the penetration of flat-node projectile with initial velocity of500m/s, whichsatisfied the theoretical predictions.

Related Dissertations

  1. Research rotodyne cutting damage yuan formation mechanism of high-voltage driver,TJ811
  2. Electromagnetic Transformation Medium and the Effects of Microstructures,O441.6
  3. The Large Concrete Hydration Heat Temperature Effects Research of the Cable Stayed Bridge,U441.5
  4. Research on a New Helical Cone Grinding Theory and Cutter Grinding Machine,TG596
  5. The Integrated Design of the Linear Ion Source and Its Performance Research,TL503.3
  6. Magnetic Field Optimization and Erosion Simulation of Circle Planar Magnetron Sputtering Target,TG174.4
  7. Research of Rolling Technology and FEM Simulation on Q420 Steel Plate,TG335.5
  8. The Research of Complex Surface Numerical Value Simulation and Polishing Technology.,TG580.692
  9. The Research of Reactive Power Compensation Capacitor’s Fault Mechanism,TM531.4
  10. Simulation and Analysis of Shield Tunneling Method Construction for Subway,U455.43
  11. Study on the Jet Performance and the Arrangement Optimization of Flat Fan Nozzle Used in Roll Cooling System,TG333.17
  12. The Research on Thermal Field Calculation of Tightly-coupled Dry-type Air-core Split Reactor,TM47
  13. The Simulation and Numerical Analysis about Manufacture Processing of Stainless Steel Based on ABAQUS,TG501
  14. The Mast Design of Closed Resin Base Composite,U667.1
  15. Reserch on the Simulation and Optimization of Self-Piercing Riveting Process for Dissimilar Materials,U466
  16. Martensitic Transformation Crystallography and Finite Element Simulation of Microstructure in Steels,TG142.24
  17. Phase Shift Adjustment and Optimization for Miniature Pulse Tube Cryocooler,TB651
  18. Study on Extrusion-Shearing Composite Deformation Process of Magnesium Alloys,TG379
  19. Numerical Analysis for Hull Strength and Delamination Damage of Composite Marine Structures,U674.701
  20. 3d Finite Element Simulation of Rail Wheel Forming Process,U260.331.1
  21. Based on finite element simulation analysis of knee prosthesis surgery localization,R687.4

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