TITLE:
Numerical Simulation of Stress-Strain State for Nonhomogeneous Shell-Type Structures Based on the Finite Element Method
AUTHORS:
Eteri L. Hart, Vadim S. Hudramovich, Sergey A. Ryabokon, Elena V. Samarskaya
KEYWORDS:
Projective-Iterative Version; Finite Element Method; Shell-Type Structures; Opening; Elastoplastic Deformation
JOURNAL NAME:
Modeling and Numerical Simulation of Material Science,
Vol.3 No.4,
October
15,
2013
ABSTRACT:
Projective-iterative version of finite element method has developed
for numerical simulation of the stress-strain state of nonhomogeneous
shell-type structures (shells with openings). Plastic deformation of the
material is taken into account when using the method of elastic solutions that
reduce the solution of elastoplastic problems to solution of elastic problems.
Developed PIV’s significant savings of computer calculation has been compared
with the calculation on a fine mesh of traditional FEM. Designed scheme allows
analysis of the mutual influence of openings. Analysis of the transformation
zone of plastic deformation is developed. For definiteness, the cylindrical
shell structures with several rectangular openings are considered.