The Effect of Neglecting The Longitudinal Moment Terms on The Deflection of Laminated Plates with a Pair of Opposite Edges Simple Supported and The Other Pair of Opposite Edges Free

양단단순-타단자유 지지된 적층복합판의 처짐에 대한 종방향 모멘트 무시효과

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 B$_{16}$, B$_{26}$, D$_{26}$, and D$_{26}$ stiffnesses as the ply number increases. Such plates above behave as special orthotropic plates and simple formulas developed by the senior author［1, 3］ 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.ted.d.