Topology optimization and geometric nonlinear modeling using positional finite elements

2021 ◽  
Author(s):  
Daniele M. S. Paulino ◽  
Edson D. Leonel
Keyword(s):  
Topology Optimization ◽  
Finite Elements ◽  
Nonlinear Modeling ◽  
Geometric Nonlinear

An Evolutionary Multi-Objective Optimization Approach to the Topology Optimization of Auxetic Structures

2002 ◽  
Author(s):  
Ashraf O. Nassef
Keyword(s):  
Topology Optimization ◽  
Elastic Modulus ◽  
Finite Elements ◽  
Multiobjective Optimization ◽  
Poisson Ratio ◽  
Optimization Approach ◽  
Multi Objective Optimization ◽  
Finite Elements Analysis ◽  
Multi Objective ◽  
Auxetic Structures

Auxetic structures are ones, which exhibit an in-plane negative Poisson ratio behavior. Such structures can be obtained by specially designed honeycombs or by specially designed composites. The design of such honeycombs and composites has been tackled using a combination of optimization and finite elements analysis. Since, there is a tradeoff between the Poisson ratio of such structures and their elastic modulus, it might not be possible to attain a desired value for both properties simultaneously. The presented work approaches the problem using evolutionary multiobjective optimization to produce several designs rather than one. The algorithm provides the designs that lie on the tradeoff frontier between both properties.

Extension of unsymmetric finite elements US‐QUAD8 and US‐HEXA20 for geometric nonlinear analyses

2007 ◽  
Vol 24 (4) ◽  
pp. 407-431 ◽  
Author(s):  
Ean Tat Ooi ◽  
Sellakkutti Rajendran ◽  
Joon Hock Yeo
Keyword(s):  
Finite Elements ◽  
Nonlinear Analyses ◽  
Geometric Nonlinear

scholarly journals Optimal design of power frames for special purpose vehicles' cockpits with regard to their eigenfrequencies and shock resistance

2018 ◽  
Vol 148 ◽  
pp. 02003 ◽  
Author(s):  
Aleksandr Leontev ◽  
Mikhail Aleshin ◽  
Oleg Klyavin ◽  
Alexey Borovkov
Keyword(s):  
Topology Optimization ◽  
Optimal Design ◽  
Finite Elements ◽  
Structural Design ◽  
Main Tool ◽  
Finite Elements Method ◽  
Standards And Regulations ◽  
Shock Resistance

The paper is focused on development of a methodology for designing special purpose vehicles' cockpits minimizing vibration and impacts in the workspace. Finite elements method is utilized as the main tool in assessment of the structural design. The method also forms a foundation for further topology optimization, which allows for obtaining lightweight adaptable to production design fulfilling both vibration and impact requests, standards and regulations. The method has been used in designing experimental cockpit for a prospective tractor. Thus it is shown that the methodology being presented in the article can be successfully implemented in design of special purpose vehicles.

Polygonal finite elements for topology optimization: A unifying paradigm

2009 ◽  
Vol 82 (6) ◽  
pp. 671-698 ◽  
Author(s):  
Cameron Talischi ◽  
Glaucio H. Paulino ◽  
Anderson Pereira ◽  
Ivan F. M. Menezes
Keyword(s):  
Topology Optimization ◽  
Finite Elements ◽  
Polygonal Finite Elements

Checkerboard-free topology optimization using non-conforming finite elements

2003 ◽  
Vol 57 (12) ◽  
pp. 1717-1735 ◽  
Author(s):  
Gang-Won Jang ◽  
Je Hyun Jeong ◽  
Yoon Young Kim ◽  
Dongwoo Sheen ◽  
Chunjae Park ◽  
...  
Keyword(s):  
Topology Optimization ◽  
Finite Elements
Sign in / Sign up

Export Citation Format

Share Document