VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University197010.18287/2541-7533-2012-0-2(33)-142-148UnknownThe influence of grain orientation and structure parameters on the limiting formability of skin sheets during stretch-wrap formingAryshenskyV. Yu.<p>Doctor of Engineering</p>
<p>Professor of the Metal Forming Department</p>vladimir.aryshensky@alcoa.comGrechnikovaA. F.<p>Postgraduate student of the Metal Forming Department</p>anna.grechnikova@alcoa.comYerisovYa. A.<p>Engineer of the Metal Forming Department</p>yaroslav.erisov@mail.ruSamara State Aerospace University180620121121421480812201408122014Copyright © 2015, VESTNIK of the Samara State Aerospace University2015<p>The paper presents theoretical analysis of the influence of fundamental material properties, namely, crystallattice constants, grain orientation factors and grain size on the stability of the process of longitudinal stretch-wrapforming of skin sheets. The dependence of the limiting stretch-wrap forming coefficient on grain orientationand structure parameters is established.</p>Longitudinal stretch-wrap formingstretch-wrap forming coefficientgrain sizeanisotropygrain orientation parametershardening modulusbucklingplanar-stressed stateПродольная обтяжкакоэффициент обтяжкиразмер зернаанизотропияпараметры текстурымодуль упрочненияпотеря устойчивостиплоское напряжённое состояние