Finite prism method based topology optimization of beam cross section for buckling load maximization

2017 ◽  
Vol 57 (1) ◽  
pp. 55-70 ◽  
Author(s):  
Huu-Dat Nguyen ◽  
Gang-Won Jang ◽  
Do-Min Kim ◽  
Yoon Young Kim
Keyword(s):  
Topology Optimization ◽  
Cross Section ◽  
Beam Cross Section ◽  
Buckling Load ◽  
Buckling Load Maximization

scholarly journals Introducing Design Space-Independence in Beam Cross-Section Optimization

2020 ◽  
Author(s):  
Chander Sen ◽  
Jitendra Prasad
Keyword(s):  
Topology Optimization ◽  
Cross Section ◽  
Design Space ◽  
Beam Cross Section ◽  
Material Distribution ◽  
Cross Sectional ◽  
Load Carrying ◽  
Optimization Formulation ◽  
Torsional Loads ◽  
First Moment

The cross-sectional topology optimization of a slender load carrying member such as a beam typically begins with the choice of design space which is generally either a square or a rectangle. However, when subjected to bending and torsional loads, such design space may often lead to biased topologies as the material distribution is directed towards the boundaries. As it may be difficult to avoid square/rectangular design space, this work introduces a constraint which may help in decreasing the dependency on the shape of the design space. The constraint is on polar first moment of area and is different from the traditional weight constraint in a way that it simultaneously constrains the weight and enclosed volume. The outcomes from the new scheme are compared with those obtained through conventional compliance- and weight- based topology optimization formulation.

Fatigue Assessment of Concrete Members Strengthened by FRP Materials

2014 ◽  
Vol 617 ◽  
pp. 221-224 ◽  
Author(s):  
Alena Čavojcová ◽  
Martin Moravcik
Keyword(s):  
Fatigue Damage ◽  
Cross Section ◽  
Theoretical Approach ◽  
Material Properties ◽  
Beam Cross Section ◽  
European Standard ◽  
Fatigue Assessment ◽  
Concrete Members ◽  
Damage Structure ◽  
T Beam

Fatigue and fatigue damage leads to a change in material properties that can lead to the element failures. Generally, it is necessary to verify the influence of the fatigue effects on the concrete members according to European standard EC2, [1]. FRP materials have been possibly used for the fatigue damage structure rehabilitation. There we can apply the condition of the limit boundaries stress on concrete and limit force in FRP material theoretical approach. Fatigue assessment will be analyzed for T-beam cross section with reinforcement and strengthened FPR material in this paper.

Formation of given field distribution in laser-beam cross section

1984 ◽  
Vol 27 (5) ◽  
pp. 411-413
Author(s):  
V. B. Korshikov ◽  
P. R. Lakhno ◽  
V. N. Rozhdestvin
Keyword(s):  
Laser Beam ◽  
Cross Section ◽  
Field Distribution ◽  
Beam Cross Section
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