다방향으로 입체 보강된 복합재 노즐의 열탄성해석 Thermo-Elastic Analysis of the Spatially Reinforced Composite Nozzle

This paper predicts the material properties of spatially reinforced composites (SRC) and analyzes the thermo-elastic behavior of a kick motor nozzle manufactured from that material. To find the appropriate SRC structure for the nozzle throat that satisfies given design conditions, the equivalent material properties of the SRC are predicted using the superposition method for those of rod and matrix. Studied are the elastic behavior, temperature distribution, and thermo-elastic behavior of a kick motor nozzle composed of carbon/carbon SRC as a throat part. The elastic deformation of the nozzle composed of 3D carbon/carbon SRC shows asymmetry in a circumferential direction. However, 4D carbon/carbon SRC nozzle shows uniform deformation in the circumferential direction. Stress concentration in connecting parts of the kick motor nozzle is ultimately high due to the high temperature gradient in each connecting part. The thermo-elastic deformations of both the 3D and the 4D SRC nozzles are uniform in the circumferential direction due to the isotropy of CTE of each SRC. The deformation of the 3D SRC nozzle is a slightly smaller than that of the 4D SRC nozzle in the nozzle throat, which is favorably effective on rocket thrust. The circumferential stress is the most critical component of the kick motor nozzle. The 4D SRC nozzle having 1,1,1,1.7 diameters in each direction has the smallest circumferential stress among several SRC nozzles.
Publisher
한국복합재료학회
Issue Date
2002-10-18
Language
KOR
Citation

한국복합재료학회 2002년도 추계학술발표대회, pp.100 - 105

URI
http://hdl.handle.net/10203/15583
Appears in Collection
AE-Conference Papers(학술회의논문)
Files in This Item
다방향으로 입체 보강된 복합재 노즐의 열탄성 해석.pdf(361.62 kB)Download
  • Hit : 142
  • Download : 99
  • Cited 0 times in thomson ci

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0