一様圧縮荷重を受ける段ボール箱形容器(正方形筒)の弾性曲げ応力解析 : 異方性側板の場合

概要

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Formulations of elastic deflection and bending stresses for anisotropic side plates (width 350, height h=300 and thickness 5.44mm, and longitudinal coefficients E_x=291 and E_y=153N/mm^2 in width and height directions and Poison's ratio ν_<xy>=0.10 for width direction strain to height direction strain) in the case of the corrugated fiberboard box shape (CFCBS) under uniform compression p_<y0> were expressed using the constrain of four edges, and behaviors of deflection w and bending stresses for its box were discussed by these formulations, w and bending normal stresses σ_<bx> and σ_<by> in width and height directions of side plates distribute symmetrically to center lines in width and height directions, and shear stress τ_<bxy> distributes antisymmetrically to their center lines. Maximum w_m of |w| is at side edge centers in the side plate, and maximum σ_<bxm> of σ_<bx> is at side edge centers and maximum σ_<bym> of |σ_<by>| is at positions of L/32 from the plate center in the width direction. And maximum τ_<bxym> of |τ_<xby>| is at corners of the side plate. Ratios w(aniso)/w(iso), σ_<bx>(aniso)/σ_<bx>(iso), σ_<by>(aniso)/σ_<by>(iso) and τ_<bxy>(aniso)/τ_<bxy>(iso) for the anisotropic plate to the isotropic plate (longitudinal coefficient E=E_x and Poison's ratio ν=ν_<xy>) are about 2, 2, 1 and 4/3 respectively.
社団法人日本機械学会の論文
2004-10-25