Experimental investigation into the synergetic damage of foam-filled and unfilled corrugated core hybrid sandwich panels under combined blast and fragment loading

Zhang, Pan; Mo, Daihui; Ge, Xinxin; Wang, Hao; Zhang, Changzai; Cheng, Yuansheng; Li, Jun

doi:10.1016/j.compstruct.2022.116089

Cited by 23 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various materials are used as blast-resistant materials. Different types of steel [4,[12][13][14][15], composite materials [16,17], foams [18], and concrete [19] are among the most commonly utilized materials. The level of protection and weight of each of these materials varies.…”

Section: Methodsmentioning

confidence: 99%

FEM Analysis of Anti-Mining Protection of Armored Vehicles

Pešić¹,

Jović²,

Milovanović³

et al. 2022

Applied Engineering Letters

View full text Add to dashboard Cite

The safety of the troop in an armored vehicle is paramount. The most serious threat to armored vehicles is a buried charge explosion or an improvised explosive device. The use of numerical approaches in the validation of armored vehicles minimizes the number of prototypes needed and speeds up the design process. This research focuses on blast simulation utilizing the ConWep (which stands for conventional weapon) method for STRENX armor steel used for blast protection in ALM (which stands for antilandmine) vehicles. The plate is modeled as a deformable solid with the Johnson-Cook plasticity model. In this paper protective plates were examined in order to determine which geometry gives the best protective conditions for the troop in an armored vehicle. Three different geometries were numerically tested, and two of them represent combined geometry. The maximal value of the plastic strain and maximal value of the vertical displacement of the central node on the protective plate was chosen as the parameters to represent the obtained results.

show abstract

Section: Methodsmentioning

confidence: 99%

FEM Analysis of Anti-Mining Protection of Armored Vehicles

Pešić¹,

Jović²,

Milovanović³

et al. 2022

Applied Engineering Letters

View full text Add to dashboard Cite

show abstract

“…It was reported that combined loading induced synergistic damage on a target [ 39 , 40 , 41 , 42 ], which was much more serious than the sum of damages induced by individual loadings [ 43 , 44 ]. Several works explored the performance of sandwich panels under combined loading [ 45 , 46 , 47 , 48 ]. The results indicated that the structural responses and energy absorption capacities of sandwich panels under combined loading were quite different to those under individual loading.…”

Section: Introductionmentioning

confidence: 99%

Computational Analysis of Sandwich Panels with Graded Foam Cores Subjected to Combined Blast and Fragment Impact Loading

Zhang

et al. 2023

Materials

View full text Add to dashboard Cite

This study aimed to evaluate the performance of sandwich panels with graded foam cores of layered densities against combined blast and fragment impact loading, and to ascertain the optimal gradient of core configuration that would maximize the performance of sandwich panels against combined loading. First, based on a recently developed composite projectile, impact tests of the sandwich panels against simulated combined loading were conducted to provide a benchmark for the computational model. Second, a computational model, based on three-dimensional finite element simulation, was constructed and verified by means of a comparison of the numerically calculated and experimentally measured peak deflections of the back facesheet and the residual velocity of the penetrated fragment. Third, the structural response and energy absorption characteristics were examined, based on numerical simulations. Finally, the optimal gradient of core configuration was explored and numerically examined. The results indicated that the sandwich panel responded in a combined manner involving global deflection, local perforation and perforation hole enlargement. As the impact velocity increased, both the peak deflection of the back facesheet and the residual velocity of the penetrated fragment increased. The front facesheet was found to be the most important sandwich component in consuming the kinetic energy of the combined loading. Thus, the compaction of the foam core would be facilitated by placing the low-density foam at the front side. This would further provide a larger deflecting space for the front facesheet, thus reducing the deflection of the back facesheet. The gradient of core configuration was found to have limited influence on the anti-perforation ability of the sandwich panel. Parametric study indicated that the optimal gradient of foam core configuration was not sensitive to time delay between blast loading and fragment impact loading, but was sensitive to the asymmetrical facesheet of the sandwich panel.

show abstract

A novel efficient energy absorber: circular metal foam-filled tube under external inversion over a die

Bai,

Zhang

2024

Acta Mech

View full text Add to dashboard Cite

Experimental investigation into the synergetic damage of foam-filled and unfilled corrugated core hybrid sandwich panels under combined blast and fragment loading

Cited by 23 publications

References 31 publications

FEM Analysis of Anti-Mining Protection of Armored Vehicles

FEM Analysis of Anti-Mining Protection of Armored Vehicles

Computational Analysis of Sandwich Panels with Graded Foam Cores Subjected to Combined Blast and Fragment Impact Loading

A novel efficient energy absorber: circular metal foam-filled tube under external inversion over a die

Contact Info

Product

Resources

About