Multiobjective crashworthiness optimization of thin-walled structures with functionally graded strength under oblique impact loading

2017 ◽  
Vol 117 ◽  
pp. 165-177 ◽  
Author(s):  
Liang Ying ◽  
Minghua Dai ◽  
Sizhu Zhang ◽  
Haolin Ma ◽  
Ping Hu
Keyword(s):  
Impact Loading ◽  
Oblique Impact ◽  
Functionally Graded ◽  
Crashworthiness Optimization ◽  
Thin Walled Structures ◽  
Thin Walled

Steering column support topology optimization including lattice structure for metal additive manufacturing

2020 ◽  
pp. 095440622094712
Author(s):  
S Mantovani ◽  
GA Campo ◽  
M Giacalone
Keyword(s):  
Additive Manufacturing ◽  
Bulk Material ◽  
Optimization Methods ◽  
Functionally Graded ◽  
Lattice Structures ◽  
Advantages And Disadvantages ◽  
Thin Walled Structures ◽  
Wide Range ◽  
Thin Walled ◽  
Graded Lattice

Structural engineering in the automotive industry has moved towards weight reduction and passive safety whilst maintaining a good structural performance. The development of Additive Manufacturing (AM) technologies has boosted design freedom, leading to a wide range of geometries and integrating functionally-graded lattice structures. This paper presents three AM-oriented numerical optimization methods, aimed at optimizing components made of: i) bulk material, ii) a combination of bulk material and graded lattice structures; iii) an integration of solid, lattice and thin-walled structures. The optimization methods were validated by considering the steering column support of a mid-rear engine sports car, involving complex loading conditions and shape. The results of the three methods are compared, and the advantages and disadvantages of the solutions are discussed. The integration between solid, lattice thin-walled structures produced the best results, with a mass reduction of 49.7% with respect to the existing component.

Crashworthiness design for functionally graded foam-filled thin-walled structures

2010 ◽  
Vol 527 (7-8) ◽  
pp. 1911-1919 ◽  
Author(s):  
Guangyong Sun ◽  
Guangyao Li ◽  
Shujuan Hou ◽  
Shiwei Zhou ◽  
Wei Li ◽  
...  
Keyword(s):  
Functionally Graded ◽  
Thin Walled Structures ◽  
Crashworthiness Design ◽  
Foam Filled ◽  
Thin Walled
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