Usage of special finite elements for solution of fracture mechanics problems
Journal Title: Вісник Тернопільського національного технічного університету - Year 2016, Vol 82, Issue 2
Abstract
The paper suggests the usage of special modified finite elements, which account for the square-root singularity of stress and strain fields at the crack top and allows high-precision evaluation of stress intensity factors. These elements are introduced into the programs of finite element method for the analysis of plate problems of termoelasticity of anisotropic solids containing cracks. The comparison is done between the known analytic solutions and the results obtained using special finite elements and modified finite elements. High accuracy of the results obtained with the usage of modified special finite elements has been proved.
Authors and Affiliations
Viktor Koshelyuk, Yuriy Tulashvili
Keywords
Related Articles
- EP ID EP257628
- DOI -
- Views 35
- Downloads 0
The numerical anaysis of stressed state of multilayered coverings with defects on an rigid foundation
Multilayered coverings can be considered as thick plates resting on a rigid substrate. For research of stress-strain state (SSS) of multilayered plates on an rigid foundation the refined structural-continual model of mom...
Spline collocation method for free vibration analysis of laminated shallow shells
The presented study deals with free vibration of cross-ply symmetrically laminated composite doubly-curved panels with constant thickness. Based on the first-order shear deformation theory (FSDT) the equations of motion...
Experimental researches of parameters technological process of the improved beets tops purifier
In this article, the problem of the need to improve existing and development of essentially new beet-harvesting machines is investigated since the existing ones do not fully satisfy the agronomic requirements for the pro...
Unification of the stress-strain state investigation of the supporting structural systems
Development of analytical methods for calculating complex structural systems, statically-indeterminated relatively the external support and internal force factors simultaneously require further development. In most cases...
Analysis of dynamics of adaptive three edge heads with elastic guides and electromagnetic drives
The paper deals with the dynamics analysis of the developed by the authors three edge head with elastic guides and electromagnetic drives in order to compare their operation dynamic features against the single tool machi...