Elastic Limit 3 : The limiting value of deforming stress applied to a material beyond which it will not return to its original shape, i.e. permanent deformation occurs
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}