Machubu achitsulo osasunthika akakokedwa, kuwonongeka kwa machubu otentha monga ming'alu kapena kupezeka kwa tanki yamafuta yowoneka bwino kwambiri kumapangidwa pambuyo poti kusweka kunachitika panjira, pafupifupi palibe kupunduka kwa pulasitiki komwe kunachitika, nthawi zambiri kumakhala kuthyoka kwamphamvu. Kuphulika kwa Brittle kumachitika chifukwa cha zifukwa zosiyanasiyana. Monga: malire a tirigu amawomba, mosasamala kanthu kuti ndi amphamvu kuposa mphamvu ya matrix kapena ofooka, zonsezi zimayambitsa ming'alu; tsankho pa mbewu malire inclusions ndi wosweka zifukwa; Komanso, ngakhale zochepa kwambiri kuposa malire a zokolola za mtanda pansi pa katundu wosiyanasiyana, zingayambitsenso kusweka kwa kutopa.

Kawirikawiri, makina a hydraulic (pneumatic) zigawo zomwe zimagwiritsidwa ntchito popanga, zipangizo zimaganiziridwa kuti zimakhala zofanana, zosalekeza, isotropic, malinga ndi njira iyi yowunikira imatengedwa kuti ndi yotetezeka, nthawi zina ngozi zidzachitika kuphulika. Kafukufukuyu anapeza kuti otsika nkhawa Chimaona fracture ndondomeko zimachitika mkulu mphamvu zitsulo zipangizo, zinthu bungwe ndi kutali homogeneous, isotropic. Mabungwe ali ndi ming'alu, padzakhala inclusions, porosity ndi zolakwika zina zomwe zingawoneke ngati microcracks zakuthupi. Komanso, Chimaona fracture komanso membala wa kutentha zogwirizana. Pamene anthu kudzera kafukufuku anapeza kuti pamene kutentha akutsikira m'munsi kutentha zina, zinthu adzakhala n'kukhala Chimaona boma, mmene odzipereka mphamvu utachepa, chodabwitsa chodziwika kuti ozizira brittleness, kotero kapangidwe komanso malinga ndi ntchito kutentha membala kusankha. ndi kutentha kozizira kozizira kwa zinthuzo.