Foamed aluminium yog ib hom khoom siv multicellular, nws yog ib hom khoom siv sib xws. Nws muaj kev ua tau zoo heev thiab loj deformability. Nws yog ib qho zoo zog absorbing khoom. Nws yog dav siv hauv tsheb, aviation, aerospace thiab lwm yam kev lag luam. Nws yog qhov tshwj xeeb tshaj yog haum rau ntau yam kev sib tsoo tsis sib tsoo. Vim tias nws feem ntau yog siv los ua cov khoom siv tiv thaiv, nws yog Dynamic shock compression kev ua tau zoo kuj tau txais kev saib xyuas ntau. Feem ntau foamed aluminium yog tsim los ua ib lub vaj huam sib luag vaj huam sib luag, uas yog, hu ua "sandwich" qauv tsim los ntawm cov hlau vaj huam sib luag thiab cov tub ntxhais foamed aluminium. Cov khoom siv txhuas muaj nws tus kheej cov yam ntxwv thiab tib lub sijhawm daws qhov teeb meem ntawm nws lub zog qis, uas yog cov qauv zoo heev.

Aluminium ua npuas ncauj khoom muaj cov yam ntxwv ntawm damping thiab absorbing poob siab zog, tab sis lub zog ntawm ib qho txhuas ua npuas ncauj khoom yog tsawg. Txhawm rau txo qhov kev puas tsuaj ntawm kev tawg cuam tshuam rau hauv qab kem ntawm lub thav duab, txheej txheej ntawm txhuas ua npuas dej yog ntxiv ntawm ob txheej ntawm steel phaj los tsim cov txheej txheem ntau txheej los tiv thaiv kev tawg, kom paub txog qhov muaj nuj nqi ntawm kev tiv thaiv tawg thiab poob siab attenuation. Thaum lub foob pob tawg cuam tshuam rau cov qauv sib xyaw, cov txhuas ua npuas dej ua rau cov yas deformation thiab yog compacted. Vim tias qhov qis impedance ntawm aluminium ua npuas ncauj shock yoj, lub zog ntawm kev ntxhov siab yoj tuaj yeem ua rau tsis muaj zog heev. Nyob rau hauv cov txheej txheem no, lub zog ntawm huab cua shock yoj raug txo, thiab muaj peev xwm tawg tau zoo dua piv nrog cov khoom siv monolayer.