Lub kaum sab xis hlau muaj qhov vuam zoo, kev ua haujlwm yas deformation thiab qee lub zog kho tshuab xav tau thaum siv. Raws li qhov xav tau sib txawv ntawm cov qauv, ntau yam khoom siv ntxhov siab tuaj yeem tsim tau, thiab lawv kuj tuaj yeem siv ua cov khoom sib txuas ntawm cov khoom.

Qhov zoo ntawm qhov chaw ntawm cov hlau kaum sab xis yog teev tseg hauv tus qauv, thiab feem ntau nws yuav tsum tsis muaj qhov tsis zoo hauv kev siv, xws li delamination, scarring, cracks, thiab lwm yam.

Qhov ntau yam kev tso cai ntawm cov hlau kaum sab xis geometry deviation kuj tau teev tseg hauv tus qauv, uas feem ntau suav nrog cov khoom xws li degree khoov, sab dav, sab tuab, vertex lub kaum sab xis, qhov hnyav theoretical, thiab lwm yam, thiab nws tau teev tseg tias cov hlau kaum sab xis yuav tsum tsis muaj qhov torsion tseem ceeb.