RT Journal Article SR Electronic A1 Pokluda, Jaroslav T1 Theoretical Strength of Solids JF Communications - Scientific Letters of the University of Zilina YR 2004 VO 6 IS 2 SP 5 OP 11 DO 10.26552/com.C.2004.2.5-11 UL https://komunikacie.uniza.sk/artkey/csl-200402-0001.php AB The significance of theoretical strength (TS) investigations is explained and a brief overview of the current state of TS calculations is presented on the background of a historical evolution. Influence of crystal defects on TS is outlined by taking into account published theoretical models. The study is completed by a discussion concerning differences between theoretical and experimental results.