Analysis of ultimate uniaxial compressive strength of stiffened panel considering influence of shear load

位置	边界条件
AD	R_y = R_z = 0，耦合端部节点并约束U_x一致，施加位移载荷
A1D1	R_y = R_z = 0，耦合端部节点且U_x = 0
AA1，DD1	R_x = R_z = 0，耦合端部节点并约束U_y一致
EF，E1F1，BB1，CC1	U_z = 0

Table 2. Boundary conditions of single-span model with compression loads

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Table 2. Boundary conditions of single-span model with compression loads

位置	边界条件
AB	R_x = R_z = U_z = 0，耦合端部节点并约束U_x一致，施加位移载荷
A1B1	R_x = R_z = U_z = 0，耦合端部节点并约束U_x = 0
AA1，BB1	R_y = R_z = U_z = 0，耦合端部节点并约束U_y一致

Table 3. Boundary conditions of single-span model with in-plane shear loads
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Table 3. Boundary conditions of single-span model with in-plane shear loads
位置边界条件
AB U_z = 0，耦合端部节点并约束U_x一致
A1B1 U_z = 0，耦合端部节点并约束U_x = 0
AA1，BB1 U_z = 0，约束板边节点R_z一致
角点B1 U_y = 0

Table 4. Cases for reliability verification of ultimate strength under axial compression
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Table 4. Cases for reliability verification of ultimate strength under axial compression
参数算例1 算例2
${t_{\rm{p}} }$/mm 15 18.5
${h_{\rm{w}} }$/mm 580 235
${t_{\rm{w}} }$/mm 15 10
${b_{\rm{f}} }$/mm 150 90
${t_{\rm{f}} }$/mm 20 15

Table 5. Calculation results of case 1 and case 2

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Table 5. Calculation results of case 1 and case 2

模型	轴压极限强度/MPa		误差/%
模型	本文结果	文献[11]结果	误差/%
单跨（算例1）	240.96	238.33	1.10
双跨（算例1）	233.09	227.05	2.66
单跨（算例2）	234.45	231.47	1.29
双跨（算例2）	201.25	190.98	5.38

Table 6. Cases for reliability verification of ultimate shear stress
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Table 6. Cases for reliability verification of ultimate shear stress
算例剪切极限应力/MPa 误差/%
本文结果文献结果
WANG F t10 165.87 163.55 1.42
WANG F t19 175.78 180.23 −2.47
ZHANG S 150.95 149.13 1.22

Table 7. Information of the sizes of stiffeners

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Table 7. Information of the sizes of stiffeners

尺寸	加强筋尺寸/mm
尺寸	F（$ {h_{\rm{w}}} \times {t_{\rm{w}}} $）	A（$ {h_{\rm{w}}} \times {b_{\rm{f}}} \times {t_{\rm{w}}}/{t_{\rm{f}}} $）	T（$ {h_{\rm{w}}} \times {t_{\rm{w}}} + {b_{\rm{f}}} \times {t_{\rm{f}}} $）
Size 1	$ 250 \times 25 $	$ 235 \times 90 \times 10/15 $	$ 235 \times 10 + 90 \times 15 $
Size 2	$ 350 \times 35 $	$ 383 \times 100 \times 12/17 $	$ 383 \times 12 + 100 \times 17 $
Size 3	$ 550 \times 35 $	$ 580 \times 150 \times 15/20 $	$ 580 \times 15 + 150 \times 20 $

Table 8. Ultimate stress of stiffened plate obtained by applying compression-shear load simultaneously with fixed proportion

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Table 8. Ultimate stress of stiffened plate obtained by applying compression-shear load simultaneously with fixed proportion

$ {\sigma _x}:{\tau _{xy}} $	极限状态应力/MPa
8∶2	${\sigma _{x{\rm{u}} } } = 230.72,{\text{ } }{\tau _{xy} } = 57.68$
7∶3	${\sigma _{x{\rm{u}} } } = 214.06,{\text{ } }{\tau _{xy} } = 91.74$
6∶4	${\sigma _{x{\rm{u}} } } = 183.18,{\text{ } }{\tau _{xy} } = 122.12$
4∶6	${\sigma _{x{\rm{u}} } } = 109.44,{\text{ } }{\tau _{xy} } = 164.16$

Table 9. Ultimate stress of stiffened plate as applying shear load to a specified value followed by axial compression load

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Table 9. Ultimate stress of stiffened plate as applying shear load to a specified value followed by axial compression load

$ {\tau _{xy}}/{\tau _{y}} $	极限状态应力/MPa
0.2	${\sigma _{x{\rm{u}} } } = 238.98,{\text{ } }{\tau _{xy} } = 36.21$
0.4	${\sigma _{x{\rm{u}} } } = 225.85,{\text{ } }{\tau _{xy} } = 72.42$
0.6	${\sigma _{x{\rm{u}} } } = 198.37,{\text{ } }{\tau _{xy} } = 108.63$
0.8	${\sigma _{x{\rm{u}} } } = 153.18,{\text{ } }{\tau _{xy} } = 144.85$

Table 10. Ultimate strength of three stiffened plates under combined loads of lateral pressure, shear and axial compression

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Table 10. Ultimate strength of three stiffened plates under combined loads of lateral pressure, shear and axial compression

带板厚t_p/mm	纯轴压/MPa	侧压/MPa	侧压+轴压/MPa	侧压+剪力(0.2)+轴压/MPa	侧压+剪力(0.4)+轴压/MPa	侧压+剪力(0.6)+轴压/MPa	侧压+剪力(0.8)+轴压/MPa
15.0	226.48	0.10	194.80 (100%)	190.88 (98.0%)	177.12 (90.9%)	146.36 (75.1%)	72.86 (37.4%)
15.0	226.48	0.15	174.62 (100%)	170.61 (97.7%)	155.41 (89.0%)	122.05 (69.9%)	46.00 (26.3%)
18.5	244.79	0.10	214.97 (100%)	211.11 (98.2%)	197.27 (91.8%)	171.57 (79.8%)	114.30 (53.2%)
18.5	244.79	0.15	196.08 (100%)	192.67 (98.3%)	179.76 (91.7%)	152.14 (77.6%)	94.39 (48.1%)
25.0	280.42	0.10	251.89 (100%)	248.71 (98.7%)	234.71 (93.2%)	207.46 (82.4%)	157.26 (62.4%)
25.0	280.42	0.15	237.83 (100%)	230.86 (97.1%	216.91 (91.2%)	192.07 (80.8%)	145.11 (61.0%)

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Ji YAN, Jinju CUI, Deyu WANG. Analysis of ultimate uniaxial compressive strength of stiffened panel considering influence of shear load[J]. Chinese Journal of Ship Research, 2023, 18(2): 149

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Paper Information

Category: Ship Structure and Fittings

Received: Sep. 24, 2021

Accepted: --

Published Online: Mar. 20, 2025

The Author Email:

DOI:10.19693/j.issn.1673-3185.02540

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Boundary conditions of two-span model with compression loads

Table 1. Boundary conditions of two-span model with compression loads

Table 2. Boundary conditions of single-span model with compression loads

Table 2. Boundary conditions of single-span model with compression loads

Table 3. Boundary conditions of single-span model with in-plane shear loads

Table 3. Boundary conditions of single-span model with in-plane shear loads

Table 4. Cases for reliability verification of ultimate strength under axial compression

Table 4. Cases for reliability verification of ultimate strength under axial compression

Table 5. Calculation results of case 1 and case 2

Table 5. Calculation results of case 1 and case 2

Table 6. Cases for reliability verification of ultimate shear stress

Table 6. Cases for reliability verification of ultimate shear stress

Table 7. Information of the sizes of stiffeners

Table 7. Information of the sizes of stiffeners

Table 8. Ultimate stress of stiffened plate obtained by applying compression-shear load simultaneously with fixed proportion

Table 8. Ultimate stress of stiffened plate obtained by applying compression-shear load simultaneously with fixed proportion

Table 9. Ultimate stress of stiffened plate as applying shear load to a specified value followed by axial compression load

Table 9. Ultimate stress of stiffened plate as applying shear load to a specified value followed by axial compression load

Table 10. Ultimate strength of three stiffened plates under combined loads of lateral pressure, shear and axial compression

Table 10. Ultimate strength of three stiffened plates under combined loads of lateral pressure, shear and axial compression