Performance of composite structural insulated panel with metal skin subjected to blast loading

Chen, Wensu; Hao, Hong; Chen, Shuyang; Hernández, Francisco

doi:10.1016/j.matdes.2015.06.081

Cited by 19 publications

(11 citation statements)

References 32 publications

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“…In structural design practice, blast overpressure caused by gas explosion is usually provided by the facility owner or from commonly used criteria (ASCE, 2010). For example, two simplified triangular blast overpressures are considered in the design of structures (Chen et al, 2015b) 30 m away from a VCE hazard with the side-on overpressures ranging from 10 to 103 kPa and positive phase duration ranging from 20 to 200 ms, as specified in the criteria SG-22 (Manufacturing Chemists Association, 1978) and Chemical Industries Association (CIA) (Chemical Industries Association, 1992).…”

Section: Industrial Accidental Explosionmentioning

confidence: 99%

Review of the current practices in blast-resistant analysis and design of concrete structures

Hao

et al. 2016

Advances in Structural Engineering

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227

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In contemporary society, industrialization and rising of terrorism threats highlight the necessity and importance of structural protection against accidental and intentionally malicious blast loads. Consequences of these extreme loading events are known to be catastrophic, involving personnel injuries and fatalities, economic loss and immeasurable social disruption. These impacts are generated not only from direct explosion effects, that is, blast overpressure and primary or secondary fragments, but also from the indirect effects such as structural collapse. The latter one is known to be more critical leading to massive losses. It is therefore imperative to enlighten our structural engineers and policy regulators when designing modern structures. Towards a better protection of concrete structures, efforts have been devoted to understanding properties of construction materials and responses of structures subjected to blast loads. Reliable blast resistance design requires a comprehensive knowledge of blast loading characteristics, dynamic material properties and dynamic response predictions of structures. This article presents a state-of-the-art review of the current blast-resistant design and analysis of concrete structures subjected to blast loads. The blast load estimation, design considerations and approaches, dynamic material properties at high strain rate, testing methods and numerical simulation tools and methods are considered and reviewed. Discussions on the accuracies and advantages of these current approaches and suggestions on possible improvements are also made.

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Section: Industrial Accidental Explosionmentioning

confidence: 99%

Review of the current practices in blast-resistant analysis and design of concrete structures

Hao

et al. 2016

Advances in Structural Engineering

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227

132

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“…Several methods can be used to model sandwich panels. The simplest method is to model the sandwich as a block, divide it into three regions, and assign facesheet and foam properties to the corresponding regions [23]. Though extremely simple, the disadvantage of this method is that the facesheet and core are always rigidly connected, and the heat transfer between them is assumed to be perfect (infinite conductance).…”

Section: Numerical Simulationmentioning

confidence: 99%

Laser Forming of Sandwich Panels With Metal Foam Cores

Bucher

Cardenas

Verma³

et al. 2018

Journal of Manufacturing Science and Engineering

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Over the past decade, laser forming has been effectively used to bend various metal foams, opening the possibility of applying these unique materials in new engineering applications. The purpose of the study was to extend laser forming to bend sandwich panels consisting of metallic facesheets joined to a metal foam core. Metal foam sandwich panels combine the excellent shock-absorption properties and low weight of metal foam with the wear resistance and strength of metallic facesheets, making them desirable for many applications in fields such as aerospace, the automotive industry, and solar power plants. To better understand the bending behavior of metal foam sandwich panels, as well as the impact of laser forming on the material properties, the fundamental mechanisms that govern bending deformation during laser forming were analyzed. It was found that the well-established bending mechanisms that separately govern solid metal and metal foam laser forming still apply to sandwich panel laser forming. However, two mechanisms operate in tandem, and a separate mechanism is responsible for the deformation of the solid facesheet and the foam core. From the bending mechanism analysis, it was concluded on the maximum achievable bending angle and the overall efficiency of the laser forming process at different process conditions. Throughout the analysis, experimental results were complemented by numerical simulations that were obtained using two finite element models that followed different geometrical approaches.

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“…However, since the FEM model has to be able to predict localised failure modes, core was modelled with solid elements, based on similar research [5][6][7][8][9][10][11][22][23][24]. Due to significant thickness of MgO board the facings were discretised with solid elements as well.…”

Section: Fem Model Descriptionmentioning

confidence: 99%

“…Sandwich panel is a low-weight prefabricated product ready for an immediate assembly, which makes it easy to handle, transport and embed in the structure; it is also characterised by water impermeability, improved thermal properties and a relatively good bearing capacity. These advantages are the main reason why it is widely used in the building industry [3][4][5][6][7][8][9][10][11][12][13]. The most common types of panels used in civil engineering are composed of steel or aluminium facings and a polyurethane or expanded polystyrene foam core.…”

Section: Introductionmentioning

confidence: 99%

“…The most common types of panels used in civil engineering are composed of steel or aluminium facings and a polyurethane or expanded polystyrene foam core. Due to complexity of layer interactions even these widespread combinations of materials are of a great interest to researchers in terms of geometry optimisation (length, relative layer thickness, facing geometry) [3,4,14], localised load effects and varied support conditions [4][5][6][7], the influence of openings [8] or submission to extreme loads (windborne debris, explosions) [10,11]. Exchanging thin metal facings with relatively thicker, wood-based ones and using a foam core of a significant thickness created a sandwich panel variation called the Structural Insulated Panel (SIP).…”

Section: Introductionmentioning

confidence: 99%

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Failure mode prediction for composite structural insulated panels with MgO board facings

Smakosz

Kreja

2018

AIP Conference Proceedings

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Abstract. Sandwich panels are readily used in civil engineering due to their high strength to weight ratio and the ease and speed of assembly. The idea of a sandwich section is to combine thin and durable facings with a light-weight core and the choice of materials used allows obtaining the desired behaviour. Panels in consideration consist of MgO (magnesium oxide) board facings and expanded polystyrene core and are characterized by immunity to biological corrosion, a high thermal insulation and a relatively low impact on environment. Customizing the range of panels to meet market needs requires frequent size changes, leading to different failure modes, which are identified in a series of costly full-scale laboratory tests. A nonlinear numerical model was created with a use of a commercial ABAQUS code and a user-defined procedure, which is able to reproduce observed failure mechanisms; its parameters were established on the basis of small-scale tests and numerical experiments. The model was validated by a comparison with the results of the full-scale bending and compression tests. The results obtained were in satisfactory agreement with the test data.

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Performance of composite structural insulated panel with metal skin subjected to blast loading

Cited by 19 publications

References 32 publications

Review of the current practices in blast-resistant analysis and design of concrete structures

Review of the current practices in blast-resistant analysis and design of concrete structures

Laser Forming of Sandwich Panels With Metal Foam Cores

Failure mode prediction for composite structural insulated panels with MgO board facings

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