Performance of a shock tube facility for impact response of structures

Andreotti, Riccardo; Colombo, M.; Guardone, Alberto; Martinelli, Paolo; Riganti, G.; Prisco, Marco di

doi:10.1016/j.ijnonlinmec.2015.02.010

Cited by 24 publications

(11 citation statements)

References 37 publications

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“…The results showed the investigation of stress and strain distributions for finite element study and the experimental tests [14]. Andreotti et al [15] studied the numerical approach for the performance of a double diaphragm using shock tube and structural response. Justusson et al [16] and Aune et al [17,18] investigated the use of shock tubes to deform the metal plates plastically.…”

Section: Introductionmentioning

confidence: 99%

Deformation of Stacked Metallic Sheets by Shock Wave Loading

Patil

Murkute

Shirafkan

et al. 2018

Metals

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The focus of the present work is to develop a deep understanding of deformation of stacked metal sheets with a series of different sequences by using shock wave loading. Here, experimental and numerical investigations of deformation of a single metal sheet of 1.5-mm and the stack of three metal sheets of 0.5-mm thickness of aluminum (Al), copper (Cu) and brass (Br) material were carried out. In the shock wave experiments, helium was used as the driving gas to produce a strong shock wave. Finite elements method (FEM) simulations on 3D-computational models were performed with explicit dynamic analysis, and Johnson-Cook material model was used. The obtained results from experiments of the outer diameter, thickness distribution, and dome height were analyzed and compared with the numerical simulations, and both the results are in excellent agreement. Moreover, for the same pressure load, due to lower inter-metallic friction in the stacked sheets compared to a cohesive property of the single sheet, an excellent deformation of stacked metallic sheets was observed. The results of this work indicated that the shock wave-forming process is a feasible technique for mass production of stacked metallic sheets as well as fabricating a hierarchical composite structure, which provides higher formability and smooth thickness distribution compared to a single material.

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Section: Introductionmentioning

confidence: 99%

Deformation of Stacked Metallic Sheets by Shock Wave Loading

Patil

Murkute

Shirafkan

et al. 2018

Metals

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“…By increasing the pressure of the driver and the instant rupture of the diaphragm, the shock wave is generated [2]. This increase is achieved by a variety of methods including explosion [3,4], combustion [5], or highpressure gas tank [6,7].…”

Section: Introductionmentioning

confidence: 99%

An Optical Measurement System to Measure Velocity and Provide Shock Wave Pressure Diagrams

Zamani

Samimi

Sardarzadeh

et al. 2020

IJE

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This paper introduces an optical measurement system for shock wave characteristics. The system works by mounting a metal plate attached to spring mounts against the shock wavefront. This set is sealed and can plot the shock wave pressure diagram by measuring plate's displacement, radiation and changing the reflection of light during shock wave conflict, and converting these optical data to voltage. In the experiments with the optical system, there was no delay time in the wave impact response. Using the optical system and the fixture designed and built, it is also possible to measure the velocity of moving objects and monitor the planar shock wave formation in addition to the shock wave velocity. Then the calibration was performed with the help of a standard piezoresistive sensor in a cold diaphragm shock tube, with a pressure of 5.5 to 12.5 bar by performing 12 tests. Relations and figures for output voltage and shock pressure are also explained.

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“…Since a shock wave is not representative of a blast wave, in order to enlarge the range of applications, shock tubes have been modified so that they could generate a blast wave instead of a shock wave. Recent examples of the application of classical shock tubes for this type of investigation can be found in papers [7][8][9], which provide experimental data and results of numerical modeling confirming the correct flow and pressure profiles. One of the main difficulties related to gas-driven shock tubes is the proper design and modeling of the fracture of diaphragms opening the flow.…”

Section: Introductionmentioning

confidence: 99%

Blast-Induced Compression of a Thin-Walled Aluminum Honeycomb Structure—Experiment and Modeling

Stanczak

Frąś

Blanc

et al. 2019

Metals

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The presented discussion concerns the behavior of a thin-walled hexagonal aluminum honeycomb structure subjected to blast loading. The shock wave affecting the structure is generated by detonation of the C4 charge in an explosive-driven shock tube (EDST). The EDST set-up is an instrumented device that makes it possible to study blast effects in more stable and repeatable conditions than those obtained in a free-air detonation. The formation of folds characteristic of a honeycomb deformation in the axial compression distributes the initial loading over a time period, which is considered as an efficient method of energy dissipation. The test configuration is modeled in the Ls-Dyna explicit code, which enables analysis of the mechanisms of energy absorption that accompanies structural deformation under a blast loading. The conclusions reached in the performed experimental and numerical investigation can be applied to the modeling and optimization of cellular structures used to mitigate blast loadings.

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Performance of a shock tube facility for impact response of structures

Cited by 24 publications

References 37 publications

Deformation of Stacked Metallic Sheets by Shock Wave Loading

Deformation of Stacked Metallic Sheets by Shock Wave Loading

An Optical Measurement System to Measure Velocity and Provide Shock Wave Pressure Diagrams

Blast-Induced Compression of a Thin-Walled Aluminum Honeycomb Structure—Experiment and Modeling

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