Full scale field testing of trapezoidal core sandwich panels subjected to adjacent and contact detonations

Al-Rifaie, Hasan; Studziński, Robert; Gajewski, Tomasz; Malendowski, Michał; Peksa, Piotr; Sumelka, Wojciech; Sielicki, Piotr W.

doi:10.1201/9781003132134-50

Cited by 2 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In that investigation, the ability to dissipate energy from the blast load through the plastic deformations of the core layer of the sandwich panel was compared using performance indicators. The publications [3,4] present experimental and numerical results for sandwich panels (considered sacrificial elements) with various unconnected corrugated core layers made of aluminium. One of the outcomes of this research was the conclusion that this type of sandwich panel should not be considered a protection element in the case of close-in detonation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sandwich panel subjected to blast wave impact and accelerated fragments

Studziński,

Sumelka,

Malendowski

et al. 2024

Eksploatacja i Niezawodność – Maintenance and Reliability

View full text Add to dashboard Cite

The article presents sandwich panels subjected to blast wave impact and accelerated fragments. The research discusses results obtained from original experimental setups that fill a gap in the area of investigation of the mechanical response of sandwich panels used in civil engineering applications under accidental design situations such as blast wave impact and/or fragment penetration. In field experiments, a high-speed camera was used to record both the fragment trajectory and the deflection of the sandwich panel. The authors proposed the equivalent static load for both the global analysis of the sandwich panel and the calibration of the numerical model. In FE modelling, CONWEP algorithm was used to simulate blast wave impact, and ductile damage model material to allow perforation of the sandwich panel faces. The convergence of mesh size was analyzed. For the validated numerical model, an evaluation of the effect of the size of the fragment (diameter/mass) on the outlet velocity and the size of the inlet and outlet holes was carried out.

show abstract

Section: Introductionmentioning

confidence: 99%

“…3, where r = 0.85 m represents the distance between the unit charge and the external facing of the sandwich panel (in Fig.1it is represented by H). Note that if Z  1.0 then the explosion is classified as close zone detonation, while if Z > 1.0 then it is classified as a far zone detonation.…”

mentioning

confidence: 99%

Sandwich panel subjected to blast wave impact and accelerated fragments

Studziński,

Sumelka,

Malendowski

et al. 2024

Eksploatacja i Niezawodność – Maintenance and Reliability

View full text Add to dashboard Cite

show abstract

“…Various research on blast wave propagation was conducted by Stoller in [5,6] and resistance of structures against such loads was researched in [7][8][9]. A field test that focused on overpressure measurements of various types of explosives was described in [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Dependency of the Blast Wave Pressure on the Amount of Used Booster

2021

View full text Add to dashboard Cite

Most of the damage caused by an explosion is caused by a pressure effect. The magnitude of the pressure generated by the explosion is influenced by the external characteristics of the environment (surrounding objects, their arrangement, geometry, etc.) and internal characteristics (type of explosive, type of charge, booster and others). An effective combination of internal factors creates a symmetry that results in the highest possible value of pressure generated by the charge explosion. The paper focuses on the influence of the booster reaction on this symmetry. The scope of the paper is to understand the dependency of the blast wave pressure on the amount of used blaster to increase the efficacy of explosions on the environment and structures to increase the protection of affected structures. The open-air field tests were conducted using different types of explosives: trinitrotoluene and three different types of industrially made ANFO explosives (pure ammonium nitrate and fuel oil, ammonium nitrate and fuel oil plus aluminum powder, ammonium nitrate and fuel oil mixed with trinitrotoluene). The obtained data were compared with the analytical approach for setting the generated maximal pressure on the front of the blast wave.

show abstract

Full scale field testing of trapezoidal core sandwich panels subjected to adjacent and contact detonations

Cited by 2 publications

References 0 publications

Sandwich panel subjected to blast wave impact and accelerated fragments

Sandwich panel subjected to blast wave impact and accelerated fragments

Dependency of the Blast Wave Pressure on the Amount of Used Booster

Contact Info

Product

Resources

About