Research Article

Design and Numerical Simulation of Pyramidal Prefolded Patterned Thin-Walled Tubes

Table 2

Geometries and numerical results of the supplemental square patterned tubes for the analysis of ratio R.

Specimenh (mm) (°)Weight increase (%) (kN) reduction (%) (kN)SEA (kJ/kg)SEA increase (%)Crushing trajectory

S5_R0_842.387.11.176.642.047.410.71.4NF
S5_R0_803.985.11.770.746.555.712.518.5NCF
S5_R0_765.583.12.364.351.354.612.215.5NCF
S5_R0_727.181.02.860.054.652.111.69.7CF
S5_R0_6810.776.64.058.355.948.810.71.4CF
S5_R25_841.787.10.977.141.649.311.15.7NF
S5_R25_802.985.11.472.545.156.012.619.5NCF
S5_R25_764.183.12.064.751.055.212.317.1NCF
S5_R25_725.481.02.561.353.654.112.014.1CF
S5_R25_686.778.83.059.455.053.211.811.8CF
S5_R25_648.076.63.458.855.549.611.37.7CF
S5_R50_841.287.10.979.539.848.511.04.0NF
S5_R50_801.985.11.675.243.152.311.711.4NF
S5_R50_762.783.12.665.550.455.412.316.9NCF
S5_R50_723.681.03.062.952.454.412.014.3NCF
S5_R50_684.478.84.461.453.554.011.812.0CF
S5_R50_645.476.65.260.554.252.911.58.8CF
S5_R75_721.881.03.681.038.749.110.82.7NF
S5_R75_682.278.84.576.941.852.411.48.6NF
S5_R75_642.776.65.173.244.654.511.812.3NCF
S5_R75_603.274.26.064.351.353.811.69.9NCF
S5_R75_563.771.76.963.352.153.211.37.7NCF
S5_R75_524.369.17.059.455.052.811.36.9CF
S6_R0_764.684.21.678.940.250.211.37.0NF
S6_R0_725.982.52.976.642.058.813.023.7NCF
S6_R0_687.480.74.473.344.557.012.518.3NCF
S6_R0_648.978.86.470.846.455.812.013.5NCF
S6_R0_6010.676.88.866.749.555.511.610.5CF
S6_R50_762.384.21.988.832.750.911.48.3NF
S6_R50_723.082.52.185.135.553.511.913.4NF
S6_R50_683.780.74.683.536.761.313.326.1NCF
S6_R50_644.578.85.479.439.060.913.124.8NCF
S6_R50_605.376.87.077.241.561.013.023.4NCF
S6_R50_566.274.69.172.744.959.112.317.2CF
S6_R75_484.169.88.776.242.351.510.82.6NF
S6_R75_444.767.111.273.544.360.112.317.1NCF
S6_R75_405.564.114.669.947.060.611.912.5NCF
S6_R75_366.360.718.168.947.862.911.711.3NCF
S6_R75_327.356.823.067.049.261.111.37.5CF