Journal ArticleDOI
Venation-Inspired Growth Technique for Stiffener Layout Design of Plate and Shell Structures
Kai Xue,Lei Li,Qiu Hong Li +2 more
Reads0
Chats0
TLDR
In this paper, a novel design method for stiffener layout of plate and shell structures is proposed, inspired by the morphogenesis mechanism of dicotyledonous venation which is featured by hierarchy and functional adaptivity.Abstract:
A novel design method for stiffener layout of plate and shell structures is proposed in this paper. The method is inspired by the morphogenesis mechanism of dicotyledonous venation which is featured by hierarchy and functional adaptivity. It is expected that a optimal stiffener layout can be gradually achieved if the stiffeners extend by obeying a similar growth rule as the venation. Starting from the so called “seeds”, the stiffeners grow and branch off towards the direction that optimizes the structural performance. And the stiffeners with the minimum effectiveness to the structural performance are degenerated simultaneously. During the design process, the relative density of each element is treated as the design variable. The growth and degeneration of the stiffeners are determined by the nodal and elemental sensitivity numbers respectively. The design algorithm is programmed in Python and integrated with Abaqus software which is used as the FEA preprocessor and solver. To validate the effectiveness of the proposed method, it is applied to design the stiffener layouts of some typical structures with the objective of maximizing the overall stiffness with a volume constraint.read more
Citations
More filters
Journal ArticleDOI
A review on metallic porous materials: pore formation, mechanical properties, and their applications
TL;DR: In this article, a comprehensive review on the mechanism of pore formation, mechanical properties, and applications of metallic porous materials is presented, which highlights some important factors for advanced wear-resistant tool and biomedical implant applications of porous metallic materials.
Journal ArticleDOI
Effect of different surface treatments on bioactivity of porous titanium implants
TL;DR: In this paper, the effect of different surface treatments on the bioactivity of medical grade Ti6Al7Nb alloy implants manufactured by selective laser melting was evaluated in vitro and shown to have a selective effect on apatite layer development on the surface of samples.
Book ChapterDOI
Review of Existing Biomaterials—Method of Material Selection for Specific Applications in Orthopedics
TL;DR: Biomaterials in orthopedics that are used either as a support or substitute for bone tissues, from the aspect of their properties and state-of-the-art results in real clinical cases are reviewed.
Journal ArticleDOI
Accentuated osseointegration in osteogenic nanofibrous coated titanium implants
Siddhartha Das,Kanchan P. Dholam,Sandeep V Gurav,Kiran Bendale,Arvind Ingle,Bhabani Mohanty,Pradip Chaudhari,Jayesh R. Bellare +7 more
TL;DR: The findings of the present study confirm that osteogenic nanofibrous coating significantly increases the magnitude of osteogenesis in the peri-implant zone and favours the dynamics of osseointegration.
References
More filters
Journal ArticleDOI
Cell polarity and tissue patterning in plants
TL;DR: The overall picture to emerge suggests that cell patterning can result from competition between cells acting as preferred channels, sources and sinks for developmental signals.
Journal ArticleDOI
EBF3PanelOpt: An optimization framework for curvilinear blade-stiffened panels
TL;DR: In this article, a framework, EBF3PanelOpt, is developed for design and optimization of complex, multifunctional, aircraft structural concepts like pressurized non-circular fuselage structures to be used in hybrid wing/body vehicles that are subjected to complex structural loading cases.
Journal ArticleDOI
On equivalence between stress criterion and stiffness criterion in evolutionary structural optimization
TL;DR: In this paper, the contours of element von Mises stress and stiffness sensitivity number are found to be very similar in finite element analysis (FEA), and it is concluded that the optimized topologies of a structure using the fully stressed criterion and the minimum compliance or maximum stiffness criterion are equivalent.
Journal ArticleDOI
The leaf venation as formed in a tensorial field
TL;DR: In this paper, it was shown that the topology of these patterns rather corresponds to what is expected from growth in a tensorial stress field, and this was demonstrated by analogic experiments performed on crack formation in gel films.
Journal ArticleDOI
Architecture of optimal transport networks.
TL;DR: It is shown that sources are directly connected to wells, without intermediate junctions, for minimal resistance networks preserving the total channel volume in case of plug flow regime and that no more than three or four channels meet at each junction of optimal bidimensional networks.
Related Papers (5)
Adaptive growth technique of stiffener layout pattern for plate and shell structures to achieve minimum compliance
Xiaohong Ding,Koetsu Yamazaki +1 more