Murti, qobiliyati az tasiri mekhaniki be deformatsiya vayron shudani jismhoi sakhtro guyad. Murti ba Holati strukturii jism va sharoithoi ozmudi on vobasta ast. Masalan, Murtii jism bo afzudani bori tasirkunanda va pastshavii harorat, dar mavridi afzudani darajai shiddat va zakhirai energiyai chandiri meafzoyad. Murtii ashyoe, ki tanho hangomi tasiri zarbati mushohida meshavad, Murtii zarbati va Mmurtie, ki tanho dar harorathoi past zohir megardad, sardshikan nomida meshavad.