抗压强度计算公式[精华].pdf

抗压强度计算公式[精华]

凯里卡特(K.Q.Kellicutt)公式

(1)

式中P-瓦楞纸箱抗压强度(N);

Pr-单位长度瓦楞纸板原纸的综合环压强度(N/cm);

Z-瓦楞纸箱的周长(cm);

AXz-瓦楞常数

J-纸箱常数

瓦楞纸板原纸的综合环压强度计算公式如下

(2)

式中Rn-纸板面纸，里纸或夹芯卡纸环压值(N/0.152m)

Rmn-瓦楞原纸环压值(N/0.152m)

C-瓦楞原纸的楞缩率

瓦楞纸箱凯里卡特常数表

公制英制

楞型

AXzJAXzJ

A/F8.361.108.360.59

B/F5.001.275.000.68

C/F6.101.276.100.68

AB/F13.361.0113.360.54

BC/F11.101.0811.100.58

AC/F14.461.0214.460.55

AAA/F25.080.8925.080.48

ABC/F19.460.9819.460.53

凯里卡特简易公式

在公式(1)中

2/3令(4*AXz/Z)*Z*J=F则P=Pr*F(3)

式中F-凯里卡特简易常数

瓦楞纸箱凯里卡特简易常数F值表

F常数

Z(cm)

A/FB/FC/FAB/FBC/FAAA/FACB/F

7047.1038.6044.0059.2056.0079.4073.60

8049.2040.3046.0061.9058.6083.0076.90

9051.2041.9047.9064.4060.9086.3080.0010053.0043.4049.60

66.7063.1089.4082.9011054.7044.8051.2068.9065.1092.3085.50

12056.3046.2052.7070.9067.1095.0088.1013057.8047.4054.10

72.8068.9097.6090.4014059.3048.6055.5074.6070.60100.0092.70

15060.7049.7056.8076.4072.20102.4094.9016062.0050.8058.00

78.0073.80104.6096.9017063.2051.8059.2079.6075.30106.7098.90

18064.5052.8060.3081.2076.80108.80100.8019065.6053.8061.40

82.6078.20110.80102.6020066.8054.7062.5084.1079.50112.70

104.40

21067.9055.6063.5085.4080.80114.50106.1022068.9056.50

64.5086.8082.10116.30107.8023070.0057.3065.5088.1083.30118.00

109.4024071.0058.2066.4089.3084.50119.70111.0025071.9058.90

67.3090.5085.60121.40112.5026072.9059.7068.2091.7086.80123.00

114.0027073.8060.5069.1092.9087.90124.50115.4028074.7061.20

69.9094.0088.90126.00116.8029075.6061.9070.7095.1090.00127.50

118.2030076.4062.6071.5096.2091.00129.00119.50

马基(Makee)公式

(4)

式中

P-瓦楞纸箱抗压强度(N);

Pm-瓦楞纸板边压强度(N);

Dx-瓦楞纸板纵向挺度(MN/m);

Dy-瓦楞纸