Robert Studziński
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View article: An Assessment of the Behaviour of Ceiling Beams of Different Structure
An Assessment of the Behaviour of Ceiling Beams of Different Structure Open
The article focuses on floor composite beams used in buildings. Within the scope of the conducted analytical and numerical studies, the authors compared the typical solution—namely, the T-shaped reinforced concrete beam—with various types …
View article: Numerical Design Calculation According to EN 1993-1-14 of Innovative Thin-Walled Columns with Sectional Transverse Strengthening
Numerical Design Calculation According to EN 1993-1-14 of Innovative Thin-Walled Columns with Sectional Transverse Strengthening Open
This paper presents a numerical analysis of cold-formed thin-walled columns reinforced with sectional transverse stiffeners (STSs) based on the recent part of EC3 concerning the finite element analysis. Columns that are 1 m tall with vario…
View article: Experimental, Numerical and Analytical Evaluation of Load-Bearing Capacity of Cold-Formed S-Beam with Sectional Transverse Strengthening
Experimental, Numerical and Analytical Evaluation of Load-Bearing Capacity of Cold-Formed S-Beam with Sectional Transverse Strengthening Open
The article provides information about strengthening cold-formed thin-walled steel beams made of the sigma profile. An innovative concept for sectional transverse strengthening of thin-walled beams subjected to concentrated forces was inve…
View article: Impact of Heterogeneous Soil Conditions on the Life Cycle Assessment of a Multi-Storey Reinforced Concrete Structure
Impact of Heterogeneous Soil Conditions on the Life Cycle Assessment of a Multi-Storey Reinforced Concrete Structure Open
This article discusses the design of reinforced concrete structures taking into account non-uniform soil conditions, as well as aspects of sustainable engineering. To achieve this, the soil-structure interaction was explicitly introduced i…
View article: Sandwich panel subjected to blast wave impact and accelerated fragments
Sandwich panel subjected to blast wave impact and accelerated fragments Open
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 respons…
View article: Experimental investigation of sandwich panels supported by thin-walled beams under various load arrangements and number of connectors
Experimental investigation of sandwich panels supported by thin-walled beams under various load arrangements and number of connectors Open
In the paper there the laboratory tests of interaction between thin-walled beams of the Z crosssection and the sandwich panels with PIR foam core are presented. The different numbers of connectors (0, 4, and 8) were used to connect the san…
View article: Prediction of high-speed debris motion in the framework of time-fractional model: theory and validation
Prediction of high-speed debris motion in the framework of time-fractional model: theory and validation Open
In this work, a newly proposed fractional derivative framework is used for the prediction of high-speed debris motion. The paper focuses on the mathematical formulation of the equation of motion, in which the damping term is generalised us…
View article: Dynamic Characteristics of Reticulated Domes Built of Composite Elastic/Viscoelastic Rods Modeled by the Fractional Zener Model
Dynamic Characteristics of Reticulated Domes Built of Composite Elastic/Viscoelastic Rods Modeled by the Fractional Zener Model Open
The new method for the determination of the dynamic characteristics of reticulated domes is proposed. Reticulated domes are built of composite rods. Each rod contains two layers made of elastic and viscoelastic materials, respectively. The…
View article: Experimental Investigation of the Failure Scenario of Various Connection Types between Thin-Walled Beam and Sandwich Panel
Experimental Investigation of the Failure Scenario of Various Connection Types between Thin-Walled Beam and Sandwich Panel Open
The paper presents failure scenarios for various types of connections between a thin-walled beam and a sandwich panel. In addition to standard connections used in civil engineering applications, that is, self-drilling fasteners for sandwic…
View article: Identification of Aluminium Powder Properties for Modelling Free Air Explosions
Identification of Aluminium Powder Properties for Modelling Free Air Explosions Open
Aluminium is a component in many energetic formulations. Therefore, its combustion is one of the main thermochemical processes that govern the output from the energetics. Modelling aluminium combustion is a challenging task because the pro…
View article: Dynamic failure of the aluminium plate under air-blast loading in the framework of the fractional viscoplasticity model - theory and validation
Dynamic failure of the aluminium plate under air-blast loading in the framework of the fractional viscoplasticity model - theory and validation Open
This paper deals with the numerical simulation of the dynamic failure of an aluminium plate under air-blast loading. Constitutive modelling based on the fractional viscoplasticity is used. The material model is non-local due to the propert…
View article: Influence of type and orientation of thin-walled beams on the interaction effectiveness with sandwich panels
Influence of type and orientation of thin-walled beams on the interaction effectiveness with sandwich panels Open
In the paper, the problem of the interaction between thin-walled beams with sandwich panels has been presented. The sandwich panels consist of steel external facings and the polyurethane foam core. The Z and C cross-section shapes and thei…
View article: Modern Trends in Research on Steel, Aluminium and Composite Structures
Modern Trends in Research on Steel, Aluminium and Composite Structures Open
Modern Trends in Research on Steel, Aluminium and Composite Structures includes papers presented at the 14th International Conference on Metal Structures 2021 (ICMS 2021, Poznań, Poland, 16-18 June 2021). The 14th ICMS summarised a few yea…
View article: Full scale field testing of trapezoidal core sandwich panels subjected to adjacent and contact detonations
Full scale field testing of trapezoidal core sandwich panels subjected to adjacent and contact detonations Open
Corrugated-core sandwich panels are efficient protective structures that can absorb blast/impact energy through plastic deformation. A relatively non-expensive folding technique is used to manufacture the core to different topologies. Lite…
View article: Analytical Models of Axially Loaded Blind Rivets Used with Sandwich Beams
Analytical Models of Axially Loaded Blind Rivets Used with Sandwich Beams Open
The paper presents the novel use of analytical models of a beam on an elastic foundation. The one-parameter model (Winkler model) and the two-parameter models (Filonenko-Borodich and Pasternak models) were investigated. These models were u…
View article: A New Blast Absorbing Sandwich Panel with Unconnected Corrugated Layers—Numerical Study
A New Blast Absorbing Sandwich Panel with Unconnected Corrugated Layers—Numerical Study Open
The need for more effective defence systems is of critical importance because of the rising risk of explosive attacks. Sandwich panels are used as plastically deforming sacrificial structures, absorbing blast wave energy. To the authors’ k…
View article: Blast Test and Failure Mechanisms of Soft-Core Sandwich Panels for Storage Halls Applications
Blast Test and Failure Mechanisms of Soft-Core Sandwich Panels for Storage Halls Applications Open
In this paper, an experimental investigation is presented for sandwich panels with various core layer materials (polyisocyanurate foam, mineral wool, and expanded polystyrene) when subjected to a justified blast load. The field tests simul…
View article: Field test and probabilistic analysis of irregular steel debris casualty risks from a person-borne improvised explosive device
Field test and probabilistic analysis of irregular steel debris casualty risks from a person-borne improvised explosive device Open
Person-borne improvised explosive devices (PBIEDs) are often used in terrorist attacks in Western countries. This study aims to predict the trajectories of PBIED fragments and the subsequent safety risks for people exposed to this hazard. …
View article: Use of Blind Rivets in Sandwich Panels—Experimental Investigation of Static and Quasi-Cyclic Loading
Use of Blind Rivets in Sandwich Panels—Experimental Investigation of Static and Quasi-Cyclic Loading Open
In this paper, we present an original experimental investigation on a pull-out test of a blind rivet from the external facing of sandwich panels with various core layer materials (polyisocyanurate foam, mineral wool, and expanded polystyre…
View article: Selected aspects of numerical modeling of the short span thin-walled beams
Selected aspects of numerical modeling of the short span thin-walled beams Open
This paper concentrates on selected aspects of numerical modeling of a short span thin-walled beams. The performed numerical simulations cover different types of finite elements (shell or solid finite elements) and different mesh sizes. Mo…
View article: Contact Between 3D Beams with Deformable Circular Cross-Sections – Numerical Verification
Contact Between 3D Beams with Deformable Circular Cross-Sections – Numerical Verification Open
In this paper a numerical analysis of contact between three-dimensional elastic beams with deformations at the contact zone is carried out. The authors propose a new model of beam-to-beam contact which is the continuation of ideas presente…