Evaluation of Compression Performance of APM Aluminum Foam-Polymer Filled Pipes Prepared via Different Epoxy Resin Bonding Processes

Table 2

Compression characteristic parameters of different specimens.

Compression parameters	Thin-walled pipes	Epoxy-bonding APM foam filled pipes	Epoxy foam-bonding APM composite pipes
Initial peak load (kN)	25.57 ± 4.26	19.38 ± 6.41	22.10 ± 7.21
Peak strain (%)	1.4 ± 4 × 10^−6	4.1 ± 4 × 10^−6	2.7 ± 4 × 10^−6
Minimum load (kN)	8.56 ± 1.51	24.17 ± 1.66	21.74 ± 4.53
Load drop magnitude (kN)	14.26∼19.76	−9.54 to −0.04	−2.32 to 3.04
Plateau load (kN)	10.41 ± 1.32	25.99 ± 2.32	27.70 ± 2.32
Iaverage	0.42 ± 0.08	0.70 ± 0.07	0.73 ± 0.04
Imax	0.56 ± 0.04	0.73 ± 0.04	0.74 ± 0.06