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Analytical Determination of Out-of-Plane Thermo-elastic Properties for Laminated Composite Plate

복합재 라미네이트의 두께방향 열탄성 물성치 계산

  • Received : 2015.03.03
  • Accepted : 2015.04.09
  • Published : 2015.04.30

Abstract

This paper presents analytical expressions for the determination of out of plane thermo-elastic properties for conventional laminated composite plates. The approach follows that commonly accepted for in-plane properties. Results over a variety of lay-ups reveals that it is poor assumption to use transverse tape lamina properties to represent out of plane laminate properties for laminates with more than 10% plies oriented off-axis($90^{\circ}$) from uniaxial or for laminates with angle plies of $15^{\circ}$ or greater.

본 논문은 적층된 복합재 라미네이트의 두께방향(out-of-plane) 열탄성 물성치 계산식에 관하여 서술하였다. 다양한 적층패턴을 유도된 계산식에 적용한 결과, 섬유방향이 단방향 0도로 구성된 라미네이트에서 총 플라이수 중 10% 이상이 모두 90도 섬유방향으로 이루어져 있거나, 또는 15도 이상의 섬유방향으로 형성된 적층패턴을 가지는 라미네이트(Laminate)의 두께방향 물성치를 복합재 라미나(lamina)의 단섬유방향과 직교하는 물성치(transverse property)로 가정하는 것은 적절하지 않은 것으로 나타났다.

Keywords

References

  1. J. Hochhalter, A. Maji, D. Reicher, "Process Induced Errors in Replicated Carbon Fiber Reinforced Polymer Mirrors", Proceedings of the Ninth Biennial ASCE Aerospace Division International Conference on Engineering, Construction, and Operations in Challenging Environments, pp. 875-882. 2004. DOI: http://dx.doi.org/10.1061/40722(153)120
  2. J. Massarello, J. Hochhalter, P. Fuierer, A. Maji, "Composite mirror replication: curing, coating and polishing", Proc. SPIE Vol. SPIE-5868, pp. 210-219. 2005. DOI: http://dx.doi.org/10.1117/12.614603
  3. H.E. Bennett, H.F. Blazek, A.O. Danielson, "Large lightweight low scatter composite active/adaptive mirror development", Proceedings of SPIE - The International Society for Optical Engineering, p 63060Q, 2006. DOI: http://dx.doi.org/10.1117/12.687503
  4. R. C. Romeo, R. Martin, :Progress in 1m-class lightweight, CFRP composite mirrors for the ULTRA telescope", Proceedings of SPIE -The International Society for Optical Engineering, p 62730S, 2006. DOI: http://dx.doi.org/10.1117/12.672221
  5. Michael W. Hyer, Stress Analysis of Fiber-reinforced Composite Materials, McGRAW-HILL International Editions, 1998.
  6. Ronald F. Gibson, Principles of Composite Material Mechanics, McGRAW-HILL, 1994.
  7. Robert M. Jones, Mechanics of Composite Materials, CRC Press, 1998.
  8. Laszlo P. Kollar, George S. Springer, Mechanics of Composite Structures, Cambridge University Press, 2009.
  9. Isaac M. Daniel, Ori Ishai, Engineering Mechanics of Composite Materials, Oxford Uni. Press, 1994.