Bionic Design of the Bumper Beam Inspired by the Bending and Energy Absorption Characteristics of Bamboo

Table 2

Structure parameter of bionic bumpers (mm).

Parameter	Normal	Bionic1	Bionic2	Bionic2S	Bionic3	Bionic4
L	1200	1200	1200	1200	1200	1200
H	80	80	80	80	—	—
L1	—	—	52	52	80	80
L2	—	—	76	76	50	50
L3	—	—	88	88	—	—
L4	—	—	100	100	—	—
L5	—	—	85	85	—	—
R	—	—	—	—	1400	1400
R0	1400	1400	1400	1400	—	—
R1	—	—	—	—	30	—
R2	—	—	—	—	—	15
D1	50	50	50	50	—	—
D2	50	25	25	25	—	—
T	—	—	—	—	2	2
T0	2	2	2	2	2	2
T1	—	—	2	1	—	—
m (kg)	1.635	1.509	1.705	1.555	1.47	2.04