• Title/Summary/Keyword: Torison angle

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Buckling Analysis of Laminated Composite Cylindrical Shell under Combined Load State (복합하중상태에 있는 복합재료 원통형 쉘의 좌굴 거동)

  • Yeo, Kyoung-Su;Yang, Won-Ho;Cho, Myoung-Rae;Sung, Ki-Deug
    • Transactions of the Korean Society of Automotive Engineers
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    • v.7 no.9
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    • pp.119-130
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    • 1999
  • This paper deals buckling behavior of laminated composite cylindrical shells subjected to combination of axial compression and torison. Linear and nonlinear finite element analysis are carried out . the influence of load type, load ratio, fiber orientation angle, stacking sequence, and intial imperfect on buckling behavior is discussed.

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The molecular structure of (+) -6-methoxy-.alpha. 1-2-naphtha-leneacetic acid determined by X-Ray method

  • Kim, Yang-Bae;Song, Hyun-June
    • Archives of Pharmacal Research
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    • v.7 no.2
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    • pp.137-139
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    • 1984
  • The molecular structure of (+)-6-Me hoxy-.alpha.-methyl-2-naphthaleneacetic acid (Naproxen), $C_{14}H_{14}O_{ 3}$, was determined by X-Ray diffraction technique. Naproxen crystallized in $P2_1$ with two molecules on the unit cell of dimensions a = 7.855, b = 5.783, c = 13.347$\AA$ and $\beta$ = $93.9^{\circ}$

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