Mechanical properties and energy absorption capabilities of aluminium foam sandwich structure subjected to low-velocity impact

Ying, Zhao; Yang, Zhaohan; Yu, Tianlai; Xin, Dabo

doi:10.1016/j.conbuildmat.2020.121996

Cited by 89 publications

(33 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a composite material, the aluminum foam sandwich panel has good impact resistance and energy absorption owing to the energy absorption of aluminum foam and the high strength of steel, which is widely used in many protective structures in the aerospace and automobile industry [1][2][3]. Moreover, it has attracted many scholars to simulate and study its quasi-static and dynamic mechanical properties [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Mechanical response of aluminum foam sandwich structure under impact load

Zhang

2022

Mater. Res. Express

View full text Add to dashboard Cite

This study investigates the mechanical response of aluminum foam sandwich panels, sandwich cylindrical shells, and sandwich shallow shells under impact loads. First, a finite element model of the sandwich panel was established, and an impact load was applied. The numerical results were compared with theoretical and experimental results to verify the model's effectiveness. Second, the energy absorption efficiency and overall deformation of sandwich panels, sandwich cylindrical shells, and sandwich shallow shells under the same impact load were studied. The research shows that the energy absorption performance of the sandwich shells is better than that of the sandwich panels, and the overall deformation is less than that of the sandwich panels. The effect of increasing panel thickness on the two types of sandwich shell studies is based on this basis. The conclusions describe that increasing the panel thickness will significantly reduce the structure's energy absorption efficiency and deformation. Finally, the effect of single-and double-layer structure on the impact resistance of sandwich shells was studied when the total thickness of the sandwich structure was unchanged. The results show that compared with the single-layer structure, the energy absorption efficiency, overall deformation, and contact force between the projectile and structure of the double-layer structure will be reduced.

show abstract

Section: Introductionmentioning

confidence: 99%

Mechanical response of aluminum foam sandwich structure under impact load

Zhang

2022

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…Much work so far has discussed the three-point bending of the AFSPs and the response of the panels subjected to impact and explosion [9][10][11][12][13][14], and there are limited investigations on the plastic forming of doubly curved AFSPs. Jackson et al [15] demonstrated that incremental sheet forming can be applied to deform the sandwich panels which have ductile and largely incompressible cores.…”

Section: Introductionmentioning

confidence: 99%

“…The geometric models of closed-cell aluminum foam include the equivalent models [12,13], the regular models [18,19], and the random models [20,21], and few numerical researches on shaping the AFSPs were conducted with random foam models. Contorno et al [22] numerically investigated the bending process of AFSP using the sandwich model with a 2D equivalent foam core, and it can be found that AFSPs can be deformed through properly designed processes.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Plastic Forming of Doubly Curved Surfaces of Aluminum Foam Sandwich Panel Using 3D Voronoi Model

Zhang

Chen

Gao

et al. 2021

Metals

View full text Add to dashboard Cite

This paper presents a numerical investigation on the plastic forming of doubly curved surfaces of aluminum foam sandwich panel (AFSP). A mesoscopic 3D Voronoi model that can describe the structure of closed-cell aluminum foam relatively realistically was established, and a series of numerical simulations using the model of the sandwich panel with a Voronoi foam core were conducted on the plastic forming of two typical doubly curved surfaces including spherical and saddle-shaped surfaces of AFSPs to analyze the deformation behaviors and the forming defects in detail. Multi-point forming experiments of spherical and saddle-shaped AFSPs with different target radii were implemented and the doubly curved panels with good forming quality were obtained. The simulated results of the surface illumination maps, the face sheet profiles, and the maximum strain differences in selected areas of the face sheet and the experimental results indicated that the Voronoi AFSP model can reflect the actual defects occurred in the plastic forming of doubly curved sandwich panels, and the high forming accuracy of the sandwich panel model was also demonstrated in terms of the shape error and the thickness variation.

show abstract

“…The entangled steel wire porous metal material has excellent energy absorption performance, and its impact toughness limit value was 45.5 J/cm 2 . Ying Zhao et al [ 22 ] used the drop hammer test machine to study the energy absorption and the mechanisms of deformation and damage of aluminum foam sandwich structures under the condition of low-velocity impact experiments. They found that the height and density of the core plate and the thickness of the panel had a significant effect on the impact resistance of the sandwich structure.…”

Section: Introductionmentioning

confidence: 99%

Charpy Impact Behavior of a Novel Stainless Steel Powder Wire Mesh Composite Porous Plate

Zhou

2021

Materials

View full text Add to dashboard Cite

A novel powder wire mesh composite porous plate (PWMCPP) was fabricated with 304 stainless steel powders and wire mesh as raw materials by vacuum solid-state sintering process using self-developed composite rolling mill of powder and wire mesh. The effects of different mesh volume fractions, mesh diameters, and sintering temperatures on the pore structure and Charpy impact properties of PWMCPPs were studied. The results show that PWMCPPs have different shapes and sizes of micropores. Impact toughness of PWMCPPs decreases with increasing wire mesh volume fraction, and increases first and then decreases with increasing wire mesh diameter, and increases with increasing sintering temperature. Among them, the sintering temperature has the most obvious effect on the impact toughness of PWMCPPs, when the sintering temperature increased from 1160 °C to 1360 °C, the impact toughness increased from 39.54 J/cm2 to 72.95 J/cm2, with an increased ratio of 84.5%. The tearing between layers, the fracture of the metallurgical junction, and the fracture of wire mesh are the main mechanisms of impact fractures of the novel PWMCPPs.

show abstract

Mechanical properties and energy absorption capabilities of aluminium foam sandwich structure subjected to low-velocity impact

Cited by 89 publications

References 47 publications

Mechanical response of aluminum foam sandwich structure under impact load

Mechanical response of aluminum foam sandwich structure under impact load

Numerical Study on the Plastic Forming of Doubly Curved Surfaces of Aluminum Foam Sandwich Panel Using 3D Voronoi Model

Charpy Impact Behavior of a Novel Stainless Steel Powder Wire Mesh Composite Porous Plate

Contact Info

Product

Resources

About