haprale purunemisele iseloomulik, purunemise lähtekoha suunas orienteeritud noolja mustriga murdepind (vt noolpraod)
a fractographic pattern of radial marks that looks like series of letters "V" nested together while the points of the chevrons can be tracked back to the fracture origin (see: chevron cracks)
Hea teada
Such patterns are typically found on brittle fracture surface of parts whose widths are considerably greater than thicknesses.