• Title, Summary, Keyword: Mx 무시효과

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The Effect of Neglecting the Longitudinal Moment Terms in Analyzing Laminates with Increasing Aspect Ratio (적층판 해석시 형상비 증가에 따른 종방향 모멘트의 무시효과)

  • Han, Bong Koo;Kim, Duk Hyun
    • Journal of Korean Society of Steel Construction
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    • v.13 no.1
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    • pp.53-60
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    • 2001
  • Theories for advanced composite structures are too difficult for such design engineers for construction and some simple but accurate enough methods are necessary. The senior author has reported that some laminate orientations have decreasing values of $D_{16}$, $B_{16}$, $D_{26}$ and $B_{26}$ stiffnesses as the ply number increases. For such plates the fiber orientations given above behave as specially orthotropic plates and simple formulas developed by the senior author. Most of the bidge and building slabs on girders have large aspect ratios For such cases frurther simplification is possible by neglecting the effect of the longitudinal moment terms(Mx) on the relevant partial differential equationsof equilibrium In this paper, the result of the study on the subject problem is presented.

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The Effect of Neglecting the Longitudinal Moment Terms in Analyzing Composite Laminate Plates (복합적층판 해석시 종방향 모멘트 무시효과)

  • Han, Bong-Koo;Baek, Jong-Nam
    • Journal of the Korean Society for Advanced Composite Structures
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    • v.2 no.3
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    • pp.25-29
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    • 2011
  • Some laminate orientations have decreasing values of $D_{16}$, $B_{16}$, $D_{26}$ and $B_{26}$ stiffnesses as the ply number increases. For such plates, the fiber orientations given above behave as specially orthotropic plates and simple formulas developed by the senior author. Most of the bridge and building slabs on girders have large aspect ratios. For such cases further simplification is possible by neglecting the effect of the longitudinal moment terms(Mx) on the relevant partial differential equations of equilibrium. In this paper, the result of the study on the subject problem is presented.

The Effect on Neglecting the Longitudinal Moment Terms in a Composite Liminate Plate with Stacking Sequence and Fiber Orientation (적층형태 및 보강방향에 따른 복합적층판의 종방향 모멘트 무시효과)

  • Lee, Bong-hak;Lee, Jung-ho;Hong, Chang-Woo;Kim, Kyung-Jin
    • Journal of Industrial Technology
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    • v.18
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    • pp.97-105
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    • 1998
  • The most of the design engineers for construction has academic background of bachelors degree. Theories for advanced composite structures are too difficult for such engineers and some simple but accurate enough methods are necessary. The senior author has reported that some laminate orientations have decreasing values of $D_{16}$, $B_{16}$, $D_{26}$ and $B_{26}$ stiffnesses as the ply number increases. Such plates behave as special orthotropic plates and simple formulas developed by the author can be used. Most of the bridge and building slabs on girders have large aspect ratios. For such cases further simplification is possible by neglecting the effect of the longitudinal moment terms($M_x$) on the relevant partial differential equations of equilibrium. In this paper, the result of the study on the subject problem is presented.

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