Dissertation > Excellent graduate degree dissertation topics show

Buckling and Postbuckling Research of Stiffened Composite Panel Containing Damage

Author: FanZhenMin
Tutor: ChenJiAn
School: Shanghai Jiaotong University
Course: Aircraft design
Keywords: stiffened composite panels buckling post-buckling fast calculation damage
CLC: TB33
Type: Master's thesis
Year: 2012
Downloads: 170
Quote: 0
Read: Download Dissertation

Abstract


The stiffened composite panel, as a typical engineering structure in aviation, aerospace, machinery and many other fields, has been more and more applications. In actual use, the stiffened composite panel is often subject to compression, and buckling instability is the most common failure mode. Stiffness composite panels have a high post-buckling strength capacity, which is needed for a reasonable use in design. The damage in the stiffeners and skin often occurs. Therefore, in consideration of damage, how to accurately determine the critical buckling load and the post-buckling strength capacity of stiffened composite panels is one of the key problems in composite material structure design.The effective width method that is widely applied in the analysis of isotropic planar stringer-stiffened panels has been extended to handle curved composite structures. The non-linear finite element analysis model of the stiffened composite plates was established with ABAQUS / CAE. The study of composite stiffened panels in compression buckling, shear buckling, and combined compression and shear buckling behavior was carried out, and predicted the more accurate buckling load and post-buckling carrying capacity. To validate this code, predictions obtained by this study were compared with experimental results and with ABAQUS calculations as well. Good agreement between the present proposed method, experiments and ABAQUS was found. Then, in the original state without damage, the impacts of parameters of the ribs height, thickness, and interfacial strength on the buckling load and ultimate strength of stiffened composite plates are discussed using the RIKS method. Finally, on the basis of the previous study, the stiffened curved plate model with impact and crack damage are established, and the microcrack direction position and other parameters influencing the buckling and post-buckling are analyzed. Meanwhile, the influence of the equivalent damage reduction on the post-buckling of impact damage is performed.

Related Dissertations

  1. Research on the Effects of Protection and Renovation of Apple Polyphenols on UVB-Induced HepG2 Cell Injury,S661.1
  2. Based on the tutor clinical experience in medical treatment of chronic kidney disease proteinuria,R277.5
  3. The Yishenhuoxue methods for the treatment of kidney stones extracorporeal shock wave lithotripsy of renal injury after clinical studies,R277.5
  4. The Study of Lead Exposure on Cyprinus Carpio Ovary Epithelial Cells,X174
  5. Study on the Occurrence, Damage and the Technology of Controling the Weeds in Direct-Seeding Rice Field of Huai Bei Area,S451.1
  6. Studies on the Characteristics of Japonica Rice Varieties Which Are the Most Widely Cultivated in Zhejiang Province,S511.22
  7. Rate-dependent Endochronic Damage Constitutive Model for Concrete,TU528
  8. Acidizing technology in the Adaptability of Ansai Oilfield,TE39
  9. Russia moral damage compensation system research,DD913
  10. The Research of Buildings Damaged Evaluation Model for Surface Movement,TU746.1
  11. Stress folds regularity and the realization of a large area of ??ordered structures,TB383.1
  12. AE Experiment Study on Damage and Failure Processes of Rock with Hole,TU452
  13. The Study on Damage Identification of Hydraulic Structure Using Information Fusion Technique,TV31
  14. The Research on the Technology of Fracturing Fluid Through Reservoir Water,TE357.12
  15. Protective Effect of Silymarin on Liver Injury Induced with Cyclophosphamide in Mice,R285.5
  16. Copper spin necking punch forming numerical modeling and simulation,TG386
  17. The Experiment of High-dose Vitamins E Supplements to Rat Antioxidant Capacity and Cell Function,R151
  18. Study of Buckling in Continuous Annealing Process Line and the Improvements,TG156.2
  19. Effects and Mechanisms of Bradykinin on Cardiomyocytes Senescence Induced by Oxidative Stress,R363
  20. Numerical Analysis Method and Application for Creep Damage of Asphalt Mixture,O346.1
  21. Influence of Baicalin on the Heart and Kidney Injury Induced by Iron Overload,R285

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