Thin-Walled Cross-Sections and their Joints: Tests and FEM-Modelling

2014 ◽  
Vol 945-949 ◽  
pp. 1211-1215 ◽  
Author(s):  
Nikolay I. Vatin ◽  
Jarmo Havula ◽  
Lassi Martikainen ◽  
Aleksei S. Sinelnikov ◽  
Anna V. Orlova ◽  
...  
Keyword(s):  
Applied Sciences ◽  
Shear Strength ◽  
Cross Sections ◽  
Start Up ◽  
University Of Applied Sciences ◽  
Negative Effect ◽  
Flow Through ◽  
Numerical Research ◽  
Thin Walled ◽  
Compression Resistance

This summary report is based on the experimental and numerical research of thin-walled cross-section’s compression resistance and shear strength of their joints carried out in St. Petersburg State Polytechnical University and HAMK University of Applied Sciences, Sheet Metal Centre. Current situation on Russian market concerning the usage of cold-formed thin-walled cross-sections is aimed to find out a base foundation to start up a stipulation of the elements under discussion in the building industry (Kolesov et al. 2007; Peleshko, Urchenko 2009; Zhmarin 2012). Some questions about the compression resistance of such cross-sections were raised on different conferences (Vatin, Sinelnikov 2013; Winter 1952; Yu Wei-Wen et al. 1996) by scientific community and by companies such as Rautaruukki Oyj (Finland). Steel galvanized C-and U-profiles and thermo-profiles are types of thin-walled cross-sections that are normally used in small houses construction (Shatov 2011; Smaznov 2011). Thermo-profiles have slots in web that decrease the thermal flow through the web, but have a negative effect on strength of the profiles (Schafer, Pekoz 1998; Vatin, Popova 2006). These profiles were an object of the research. Investigations carried out included tests to prove the compression resistance of the thin-walled cross-sections and shear strength of stud-to-rack joints. Numerical modelling of thin-walled cross-sections (Cheng, Schafer 2007) was done with contemporary analysis software (SCAD Office, Lira) (Kriksunov et al. 2010; Perel'muter et al. 2009) using the finite element method (FEM) (Bayan et al. 2011; Gordeeva, Vatin 2011; Rasmussen 2009).

scholarly journals Detecting and Facing Information Demand for New Target Groups such as Start-up Founders – A Case Study at the WHU Library

2019 ◽  
Vol 43 (1) ◽  
pp. 216-222
Author(s):  
Ragna Seidler-de Alwis ◽  
Julia Grefkes
Keyword(s):  
Applied Sciences ◽  
Information Science ◽  
Target Group ◽  
Specific Information ◽  
Target Groups ◽  
Information Demand ◽  
Start Up ◽  
University Of Applied Sciences ◽  
The Status

AbstractFuture oriented libraries can make use of the current start-up trend. An orientation towards new and unorthodox target groups can lead to an enhanced extension of demand and can emphasize the status of libraries. The library of the WHU – Otto Beisheim School of Management is considering to involve a new target group, start-up founders amongst their alumni. To that end, a survey was carried out and evaluated in cooperation with the Institute of Information Science at the TH Köln – University of Applied Sciences in form of a bachelor thesis, which this article is based upon. Here, a structured pre-analysis tries to determine the demand of this specific target group (founders) and develops a concept to serve the demand of this target group specifically. The example of the case study illustrates a method for target groups specific information demand and also checks the consequences for libraries and their services who venture out of their regular clientele.

Development of a Course on Gas and Steam Turbines Supported by Cost-Efficient Turbomachinery Experiments

2014 ◽  
Author(s):  
Stefan aus der Wiesche
Keyword(s):  
Applied Sciences ◽  
Great Part ◽  
Cycle Performance ◽  
Experimental Investigations ◽  
Steam Turbines ◽  
University Of Applied Sciences ◽  
Flow Through ◽  
Cost Efficient ◽  
Gas Turbine Cycle ◽  
University Laboratory

Based on a voice-of-the-industry survey covering major turbine manufactures as well as power plant owners and operators an undergraduate course on gas and steam turbines was developed at Muenster University of Applied Sciences. This course is also supported by cost-efficient experiments. The experimental investigations on laboratory test rigs are making the students more familiar with turbomachinery phenomena like gas turbine cycle performance, fundamental rotordynamics, blade vibrations, and flow through turbine cascades and loss correlations. The experiments and test rigs were developed in great part by students as part of their Bachelor or Master theses. Furthermore, the experiments did not require tremendous efforts or an expensive infrastructure; they were operated in typical University laboratory environments.

scholarly journals Being different at work: How gender dissimilarity relates to social inclusion and absenteeism

2016 ◽  
Vol 20 (6) ◽  
pp. 879-893 ◽  
Author(s):  
Wiebren S. Jansen ◽  
Sabine Otten ◽  
Karen I. van der Zee
Keyword(s):  
Applied Sciences ◽  
Social Inclusion ◽  
Work Group ◽  
Gender Diversity ◽  
Work Outcomes ◽  
Diversity Climate ◽  
University Of Applied Sciences ◽  
Negative Effect ◽  
Group Members ◽  
Personnel Administration

We investigated how and when gender dissimilarity relates to two highly important individual work outcomes: social inclusion and absenteeism. We collected survey data among 397 employees from a university of applied sciences and combined these with data from the organization’s personnel administration. Our results indicate that dissimilarity was negatively related to perceived work group inclusion. In addition, this negative effect was stronger when the group was perceived to have a negative diversity climate. Finally, there was a conditional indirect effect of gender dissimilarity on absenteeism through inclusion. That is, being different from other group members in terms of gender was associated with higher absenteeism through lower levels of perceived inclusion, but only when the group was perceived to have a negative diversity climate. Together, the present research demonstrates that sometimes being different is associated with more absences and underlines the importance of establishing a positive climate for gender diversity.

scholarly journals Theoretical and Experimental Stress-Strain Analysis of Compressed Steel Members with Closed Cross-Sections

2013 ◽  
Vol 8 (1) ◽  
pp. 59-66
Author(s):  
Michal Tomko ◽  
Mohamad Al Ali ◽  
Ivo Demjan
Keyword(s):  
Cross Sections ◽  
Carrying Capacity ◽  
Strain Analysis ◽  
Load Carrying Capacity ◽  
Steel Members ◽  
Fundamental Information ◽  
Load Carrying ◽  
Numerical Research ◽  
Thin Walled ◽  
Theoretical Results

Abstract The paper presents fundamental information about experimental and theoretic-numerical research to determinate the load-carrying capacity of thin-walled cold-formed compressed steel members. The investigated members have closed cross-sections made from homogeneous materials. The theoretic-numerical analysis in this paper is oriented on the modeling of the initial deviations effects, caused by production process, on the load-carrying capacities of mentioned members, while the experimental investigation is to verify the theoretical results and to investigate the behavior of mentioned members during the loading process.

scholarly journals Internal Service Quality at our University - Centralizing vs. Decentralizing

2019 ◽  
Vol 1 (1) ◽  
pp. 81-85
Author(s):  
Regina Krause ◽  
Marco Berg ◽  
Hartmut Domröse
Keyword(s):  
Applied Sciences ◽  
Success Factors ◽  
Service Center ◽  
Concrete Case ◽  
Advantages And Disadvantages ◽  
Critical Success ◽  
Career Service ◽  
Start Up ◽  
University Of Applied Sciences ◽  
The University

AbstractThis article looks at interdisciplinary services such as a career service center and start-up counselling for students. Using the example of the Wismar University of Applied Sciences, the question is examined as to whether it makes more sense for the students of the university to bundle these services in a central unit or whether it would be better to allocate them to faculties or departments on a subject- specific basis. The advantages and disadvantages of both solutions are discussed. In the concrete case of the Wismar University of Applied Sciences, it is shown that based on almost a decade of experience with its approach, the centralisation of these interdisciplinary functions has indeed led to synergies. The article also identifies a set of critical success factors which the design of such a solution will need to meet.

ALUMINUM A413.0

Alloy Digest ◽  
1984 ◽  
Vol 33 (5) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Base Alloy ◽  
Heat Treating ◽  
Aluminum Base Alloy ◽  
Thin Walled ◽  
High Silicon ◽  
Aluminum Base

Abstract ALUMINUM A413.0 is a high-silicon (nominally 12%), aluminum-base alloy. It is recommended for applications where excellent castability and resistance to corrosion are required. Typical uses comprise miscellaneous thin-walled and intricately designed castings for such items as meter cases and automobile fittings. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-251. Producer or source: Various aluminum companies.

scholarly journals Experimental investigation and analytical modelling of shear strength of thin walled textile-reinforced UHPC beams

2021 ◽  
Vol 231 ◽  
pp. 111735
Author(s):  
Philipp Preinstorfer ◽  
Patrick Huber ◽  
Tobias Huber ◽  
Benjamin Kromoser ◽  
Johann Kollegger
Keyword(s):  
Experimental Investigation ◽  
Shear Strength ◽  
Analytical Modelling ◽  
Thin Walled

scholarly journals Eigenproblem Versus the Load-Carrying Capacity of Hybrid Thin-Walled Columns with Open Cross-Sections in the Elastic Range

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3468
Author(s):  
Zbigniew Kolakowski ◽  
Andrzej Teter
Keyword(s):  
Cross Sections ◽  
Carrying Capacity ◽  
Ultimate Load ◽  
Equilibrium Path ◽  
Load Carrying Capacity ◽  
Nonlinear Buckling ◽  
Elastic Range ◽  
Load Carrying ◽  
Thin Walled ◽  
Ultimate Load Carrying Capacity

The phenomena that occur during compression of hybrid thin-walled columns with open cross-sections in the elastic range are discussed. Nonlinear buckling problems were solved within Koiter’s approximation theory. A multimodal approach was assumed to investigate an effect of symmetrical and anti-symmetrical buckling modes on the ultimate load-carrying capacity. Detailed simulations were carried out for freely supported columns with a C-section and a top-hat type section of medium lengths. The columns under analysis were made of two layers of isotropic materials characterized by various mechanical properties. The results attained were verified with the finite element method (FEM). The boundary conditions applied in the FEM allowed us to confirm the eigensolutions obtained within Koiter’s theory with very high accuracy. Nonlinear solutions comply within these two approaches for low and medium overloads. To trace the correctness of the solutions, the Riks algorithm, which allows for investigating unsteady paths, was used in the FEM. The results for the ultimate load-carrying capacity obtained within the FEM are higher than those attained with Koiter’s approximation method, but the leap takes place on the identical equilibrium path as the one determined from Koiter’s theory.

A torsion bending element for thin-walled beams with open and closed cross sections

1995 ◽  
Vol 55 (6) ◽  
pp. 1045-1054 ◽  
Author(s):  
H. Shakourzadeh ◽  
Y.Q. Guo ◽  
J.-L. Batoz
Keyword(s):  
Cross Sections ◽  
Thin Walled
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