Kent Persson
YOU?
Author Swipe
View article: Numerical study on train-induced vibrations: A comparison of timber and concrete buildings
Numerical study on train-induced vibrations: A comparison of timber and concrete buildings Open
This paper deals with the prediction of train-induced building vibrations by using a numerical framework. The framework is based on a sub-structure approach, where a sequence of different models are used. The free-field ground vibrations a…
View article: Efficient nonlinear reduced order modeling for dynamic analysis of flat structures
Efficient nonlinear reduced order modeling for dynamic analysis of flat structures Open
In the present paper, strategies for reduced order modeling of geometrically nonlinear finite element models are investigated. Simulation-free, non-intrusive approaches are considered, which do not require access to the source code of a fi…
View article: Numerical investigation of railway subgrade stiffening: Critical speed and free-field vibrations
Numerical investigation of railway subgrade stiffening: Critical speed and free-field vibrations Open
For a train speed close to the speed of elastic waves in the soil, often referred to as “critical speed”, largely elevated vibration responses occur. This can be a practical problem for soft soil sites, where the phenomenon may cause exces…
View article: Reduced order modeling of soft-body impact on glass panels
Reduced order modeling of soft-body impact on glass panels Open
In the paper, strategies for reduced order modeling of glass panels subjected to soft-body impact are developed by means of dynamic substructuring. The aim is to obtain accurate and computationally efficient models for prediction of the pr…
View article: Effects of modeling strategies for a slab track on predicted ground vibrations
Effects of modeling strategies for a slab track on predicted ground vibrations Open
In the paper, the effect of modeling strategies regarding the dynamic behavior of a railway slab track on a layered half-space is studied. The track is modeled with various degrees of accuracy through the use of either beam theory, shell f…
View article: Structural Behaviour of Glass Panels Under Soft-body Impact
Structural Behaviour of Glass Panels Under Soft-body Impact Open
Glass is a commonly used material in modern architecture not only for building enclosures but also for glazed barriers preventing building occupants from falling out of balconies or different levels inside buildings. The paper reports some…
View article: Non-destructive testing of the strength of glass by a non-linear ultrasonic method
Non-destructive testing of the strength of glass by a non-linear ultrasonic method Open
The paper presents basis and experimental results of a non-destructive method aimed at determination of the presence of large surface cracks in glass samples by measurements with NAW® technology (Nonlinear Acoustic Wave). The method is bas…
View article: MODEL REDUCTION FOR STRUCTURES SUBJECTED TO BLAST LOADING BY USE OF DYNAMIC SUBSTRUCTURING
MODEL REDUCTION FOR STRUCTURES SUBJECTED TO BLAST LOADING BY USE OF DYNAMIC SUBSTRUCTURING Open
In the present study, strategies are developed to enable time-efficient models for structures subjected to blast loading, appropriate for use in a structural design process.Dynamic substructuring is employed to obtain reduced models with l…
View article: On the Applicability of the Weibull Distribution to Model Annealed Glass Strength and Future Research Needs
On the Applicability of the Weibull Distribution to Model Annealed Glass Strength and Future Research Needs Open
The applicability of the Weibull distribution to model the strength of glass, the existence of a size effect on the strength and the need for a non-destructive testing of the strength are discussed and reviewed. There are a growing number …
View article: Abstract of: A numerical method for analysis of fracture statistics of glass and simulations of a double ring bending test
Abstract of: A numerical method for analysis of fracture statistics of glass and simulations of a double ring bending test Open
The results from a new numerical method for simulating the strength and fracture locations of small glass specimens subjected to double ring bending are compared with experimental data. The method implements the weakest-link principle whil…
View article: An Analysis of Glass Fracture Statistics
An Analysis of Glass Fracture Statistics Open
A numerical method is applied to model the fracture stress and failure location in glass panes subjected to various bending arrangements. The method assumes the weakest-link principle and the existence of surface microcracks. The fracture …
View article: Structural Analysis of Slender Glass Panel Subjected to Static and Impact Loading
Structural Analysis of Slender Glass Panel Subjected to Static and Impact Loading Open
Slender glass panels are widely used as storefronts and indoor separating walls in shopping malls and public buildings. To ensure that the design and construction is technically safe for general use and that it meets current and accepted t…
View article: A numerical method for analysis of fracture statistics of glass and simulations of a double ring bending test
A numerical method for analysis of fracture statistics of glass and simulations of a double ring bending test Open
The results from a new numerical method for simulating the strength and fracture locations of small glass specimens subjected to double ring bending are compared with experimental data. The method implements the weakest-link principle whil…
View article: Performance of Standard Statistical Distributions for Modeling Glass Fracture
Performance of Standard Statistical Distributions for Modeling Glass Fracture Open
Experimental data on the strength of new annealed float glass tested in an ambient environment was collected. A comparison was made between four standard distributions, the normal, lognormal, Gumbel and Weibull, with respect to the perform…
View article: Generating initial reinforcement layouts using graphic statics
Generating initial reinforcement layouts using graphic statics Open
A key step to the strut-and-tie method is the selection of an appropriate truss model, due to the static indeterminacy of reinforced concrete there are often several suitable models possible. A method for automatically generating a suitabl…
View article: PREDICTION MODELS OF FREE-FIELD VIBRATIONS FROM RAILWAY TRAFFIC
PREDICTION MODELS OF FREE-FIELD VIBRATIONS FROM RAILWAY TRAFFIC Open
Many cities experience an increasing population leading to a need for urban densification. In these cities, unused land close to railways will have to be developed with new residential and office buildings. The infrastructural demand will …
View article: Variation in models for simple dynamic structure–soil–structure interaction problems
Variation in models for simple dynamic structure–soil–structure interaction problems Open
To account for dynamic cross-coupling of structures via the soil, a computational model must be accurate enough to provide the correct overall behaviour of the scattered wave field. However, simplicity is also important when a model should…
View article: Effect of structural design on traffic-induced building vibrations
Effect of structural design on traffic-induced building vibrations Open
Population growth and urbanization results in densified cities, where new buildings are being built closer to existing vibration sources, and new transportation systems are constructed closer to existing buildings. Potential disturbing vib…
View article: Comparisons of various approaches to low frequency in-situ measurements and corresponding models
Comparisons of various approaches to low frequency in-situ measurements and corresponding models Open
New recommendations for environmental noise levels have been issued in Sweden. The permissible levels at facades of new buildings have been increased, which has resulted in a risk for higher indoor low frequency noise levels, since the rec…
View article: Strategy for predicting railway-induced vibrations in buildings
Strategy for predicting railway-induced vibrations in buildings Open
Urban densification is a way of accommodating population growth. Land adjacent to railways is used for constructing residences and other buildings, and new tramway systems are planned. Under these circumstances, nearby buildings will be ex…
View article: Influence of foundation type and soil stratification on ground vibration - A parameter study
Influence of foundation type and soil stratification on ground vibration - A parameter study Open
Vibration of machinery and construction work are major sources of noise and vibration pollution in the urban environment. The frequencies dominating the vibration, and the distances over which it spreads via the ground, depend on the sourc…
View article: Numerical modelling of ground vibration caused by elevated high-speed railway lines considering structure-soil-structure interaction
Numerical modelling of ground vibration caused by elevated high-speed railway lines considering structure-soil-structure interaction Open
Construction of high-speed railway lines has been an increasing trend in recent years. Countries like Denmark and Sweden plan to expand and upgrade their railways to accommodate high-speed traffic. To benefit from the full potential of the…