In-plane compression of graded hierarchical honeycombs. Issue 7 (May 2022)
- Record Type:
- Journal Article
- Title:
- In-plane compression of graded hierarchical honeycombs. Issue 7 (May 2022)
- Main Title:
- In-plane compression of graded hierarchical honeycombs
- Authors:
- Wang, Yuyang
Lu, Guoxing
San Ha, Ngoc
Wang, Li - Other Names:
- Wu Chengqing guest-editor.
Xia Yong guest-editor.
Bi Kaiming guest-editor. - Abstract:
- Hierarchical and graded honeycomb structures are extensively applied in many fields due to their excellent compression properties and energy absorption capacity. In the present study, the segmented graded hierarchical honeycomb structures with triangle substructures (GHT) are constructed to numerically investigate the in-plane crushing performance by the nonlinear finite element analysis code ABAQUS/Explicit. GHT exhibits the best energy absorption capacity compared to graded regular hexagonal honeycomb structures (GRH), graded hierarchical structures with Kagome substructures (GHK) and graded hierarchical structures with hexagonal substructures (GHH). The comprehensive effect of inertia and yield strength at each layer is illustrated by investigating the deformation modes under different loading speeds. The plateau stress is discussed in two ways: the overall average plateau stress corresponding to the whole structure and the segmental plateau stress corresponding to the specific layer. The relationship between overall average plateau stress, relative density and loading speed for the graded structure is established based on one-dimensional shock wave theory and compared with the uniform structure. The segmental properties of plateau stress at both impact and fixed ends are investigated in detail by combining theoretical analysis and deformation characteristics, and the results show good consistency with the simulation results at low, medium, and high loading speedHierarchical and graded honeycomb structures are extensively applied in many fields due to their excellent compression properties and energy absorption capacity. In the present study, the segmented graded hierarchical honeycomb structures with triangle substructures (GHT) are constructed to numerically investigate the in-plane crushing performance by the nonlinear finite element analysis code ABAQUS/Explicit. GHT exhibits the best energy absorption capacity compared to graded regular hexagonal honeycomb structures (GRH), graded hierarchical structures with Kagome substructures (GHK) and graded hierarchical structures with hexagonal substructures (GHH). The comprehensive effect of inertia and yield strength at each layer is illustrated by investigating the deformation modes under different loading speeds. The plateau stress is discussed in two ways: the overall average plateau stress corresponding to the whole structure and the segmental plateau stress corresponding to the specific layer. The relationship between overall average plateau stress, relative density and loading speed for the graded structure is established based on one-dimensional shock wave theory and compared with the uniform structure. The segmental properties of plateau stress at both impact and fixed ends are investigated in detail by combining theoretical analysis and deformation characteristics, and the results show good consistency with the simulation results at low, medium, and high loading speed conditions. Finally, the concept of cyclic graded structure is introduced, which can further optimize the energy absorption capacity and provide guidance for the design of new multifunctional structures. … (more)
- Is Part Of:
- Advances in structural engineering. Volume 25:Issue 7(2022)
- Journal:
- Advances in structural engineering
- Issue:
- Volume 25:Issue 7(2022)
- Issue Display:
- Volume 25, Issue 7 (2022)
- Year:
- 2022
- Volume:
- 25
- Issue:
- 7
- Issue Sort Value:
- 2022-0025-0007-0000
- Page Start:
- 1483
- Page End:
- 1504
- Publication Date:
- 2022-05
- Subjects:
- Hierarchical graded honeycombs -- in-plane loading -- plateau stress -- energy absorption
Structural engineering -- Periodicals
Construction, Technique de la
Structural engineering
Periodicals
624.1 - Journal URLs:
- http://ase.sagepub.com/ ↗
http://multi-science.metapress.com/content/121491 ↗
http://www.ingenta.com/journals/browse/mscp/ase ↗
http://www.multi-science.co.uk/ ↗ - DOI:
- 10.1177/13694332221086701 ↗
- Languages:
- English
- ISSNs:
- 1369-4332
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 20702.xml