detaili sisenurga pindade kokkuviimise (ühendamise) kõverpindne element ja/või selle raadius
radii on internal corners, often found on castings, where its function is to prevent the formation of stress cracks, which can originate from sharp corners
Kui näiteks sisselõigatud teravnurkse soone põhjas nn. üleminekuraadius puudub (R = 0), siis teoreetiline kontsentratsioonitegur α ≈ 3, meeterkeermel α ≈ 2,5.
A fillet is a rounded corner that is used to transition between two internal flat surfaces in a mechanical component. The fillet helps to reduce stress concentrations at the corner and improve the overall strength of the component. By rounding the corners, the fillet also helps to reduce the risk of cracking and breaking, making the component more durable.
