Topology Optimization for Optimal Fracture Resistance Taking into Account Interfacial Damage

2019 ◽  
pp. 103-134
Keyword(s):  
Topology Optimization ◽  
Fracture Resistance ◽  
Interfacial Damage

scholarly journals Topology Optimization for Maximizing the Fracture Resistance of Periodic Quasi-Brittle Composites Structures

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3279
Author(s):  
Daicong Da ◽  
Julien Yvonnet
Keyword(s):  
Topology Optimization ◽  
Fracture Resistance ◽  
Composite Structures ◽  
Energy Criterion ◽  
Field Method ◽  
Unit Cell ◽  
Phase Field Method ◽  
Interfacial Damage ◽  
Multiple Loads ◽  
Unit Cells

Topology optimization for maximizing the fracture resistance of particle-matrix composites is investigated. The methodology developed in our previous works, combining evolutionary topology optimization and phase field method to fracture embedding interfacial damage, is applied and extended to periodic composites and multiple objectives. On one hand, we constrain the periodicity of unit cells geometry and conduct their topology optimization for one given load prescribed over the whole structure. On the other hand, we consider a single unit cell whose topology is optimized with respect to the fracture energy criterion when subjected to multiple loads. Size effects are investigated. We show that significant enhancement of the fracture resistance can be achieved for the studied composite structures by the present method. In addition, a first attempt to fracture resistance enhancement of a unit cell associated with a material is investigated for multiple loads, exhibiting a complex optimized microstructure.

Level‐set topology optimization for maximizing fracture resistance of brittle materials using phase‐field fracture model

2020 ◽  
Vol 121 (13) ◽  
pp. 2929-2945 ◽  
Author(s):  
Chi Wu ◽  
Jianguang Fang ◽  
Shiwei Zhou ◽  
Zhongpu Zhang ◽  
Guangyong Sun ◽  
...  
Keyword(s):  
Topology Optimization ◽  
Level Set ◽  
Phase Field ◽  
Fracture Resistance ◽  
Brittle Materials ◽  
Fracture Model

Fracture resistance via topology optimization

2007 ◽  
Vol 36 (3) ◽  
pp. 263-271 ◽  
Author(s):  
Vivien J. Challis ◽  
Anthony P. Roberts ◽  
Andrew H. Wilkins
Keyword(s):  
Topology Optimization ◽  
Fracture Resistance
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