An insight into eurocode 4 design rules for thermal behaviour of composite slabs

2020 ◽  
pp. 103084
Author(s):  
Jian Jiang ◽  
Wenyu Cai ◽  
Wei Chen ◽  
Jihong Ye ◽  
Guo-Qiang Li
Keyword(s):  
Thermal Behaviour ◽  
Design Rules ◽  
Composite Slabs ◽  
Insight Into

scholarly journals Toward a design methodology for particle dampers by analyzing their energy dissipation

2020 ◽  
Author(s):  
Niklas Meyer ◽  
Robert Seifried
Keyword(s):  
Energy Dissipation ◽  
Loss Factor ◽  
Design Methodology ◽  
Design Rules ◽  
Damping Behavior ◽  
Motion Modes ◽  
Particle Dampers ◽  
Discrete Element Simulations ◽  
Excitation Conditions ◽  
Insight Into

Abstract Particle dampers show a huge potential to reduce undesired vibrations in technical applications even under harsh environmental conditions. However, their energy dissipation depends on many effects on the micro- and macroscopic scale, which are not fully understood yet. This paper aims toward the development of design rules for particle dampers by looking at both scales. This shall shorten the design process for future applications. The energy dissipation and loss factor of different configurations are analyzed via the complex power for a large excitation range. Comparisons to discrete element simulations show a good qualitative agreement. These simulations give an insight into the process in the damper. For monodisperse systems, a direct correlation of the loss factor to the motion modes of the rheology behavior is shown. For well-known excitation conditions, simple design rules are derived. First investigations into polydisperse settings are made, showing a potential for a more robust damping behavior.

scholarly journals Features of calculation and design of complex concrete monolithic slabs

2018 ◽  
Vol 251 ◽  
pp. 02027
Author(s):  
Vitaly Kuznetsov ◽  
Yulia Shaposhnikova
Keyword(s):  
Reinforced Concrete ◽  
Numerical Experiment ◽  
Concrete Structures ◽  
Structural Concrete ◽  
Design Rules ◽  
The Real ◽  
Composite Slabs

In the article features of designing of reinforced concrete floors on the profiled flooring, leaning against steel I-beams are considered. Specific features of calculating the strength of composite slabs in accordance with JV 35.13330.2011 “Bridges and pipes” and SP 266.1325800.2016 “Structural concrete structures. Design rules”. A method for determining the forces based on the real ratio of the rigidity of the overlap elements is also considered. The analysis of the results of the numerical experiment made it possible to establish the optimum coefficients of the use of materials that can be used in the design of combined overlaps.

scholarly journals Use of protein-engineered fabrics to identify design rules for integrin ligand clustering in biomaterials

2016 ◽  
Vol 8 (1) ◽  
pp. 50-61 ◽  
Author(s):  
Patrick L. Benitez ◽  
Shamik Mascharak ◽  
Amy C. Proctor ◽  
Sarah C. Heilshorn
Keyword(s):  
Cellular Responses ◽  
Design Rules ◽  
Ligand Density ◽  
Integrin Ligand ◽  
Ligand Clustering ◽  
Insight Into

We engineered novel electrospun protein fabrics to gain insight into cellular responses to heterogeneity in global versus local ligand density.

Calibration problems in hydrogen luminosities

1966 ◽  
Vol 24 ◽  
pp. 322-330
Author(s):  
A. Beer
Keyword(s):  
Galactic Structure ◽  
B Stars ◽  
Insight Into

The investigations which I should like to summarize in this paper concern recent photo-electric luminosity determinations of O and B stars. Their final aim has been the derivation of new stellar distances, and some insight into certain patterns of galactic structure.

Stochasting modeling of planetary ring systems

1984 ◽  
Vol 75 ◽  
pp. 461-469 ◽  
Author(s):  
Robert W. Hart
Keyword(s):  
Maximum Entropy ◽  
Ring System ◽  
The Sun ◽  
Ultimate State ◽  
Interparticle Interactions ◽  
Ring Systems ◽  
First Order ◽  
Planetary Ring ◽  
Insight Into

ABSTRACTThis paper models maximum entropy configurations of idealized gravitational ring systems. Such configurations are of interest because systems generally evolve toward an ultimate state of maximum randomness. For simplicity, attention is confined to ultimate states for which interparticle interactions are no longer of first order importance. The planets, in their orbits about the sun, are one example of such a ring system. The extent to which the present approximation yields insight into ring systems such as Saturn's is explored briefly.

Skeletal elements of crinoid echinoderms: High-resolution structural and microanalytical results

1983 ◽  
Vol 41 ◽  
pp. 194-195
Author(s):  
D. F. Blake ◽  
L. F. Allard ◽  
D. R. Peacor
Keyword(s):  
High Resolution ◽  
Marine Invertebrates ◽  
Sea Urchins ◽  
Structural Features ◽  
Sea Stars ◽  
High Resolution Tem ◽  
Relationship Of ◽  
The Relationship ◽  
Insight Into

Echinodermata is a phylum of marine invertebrates which has been extant since Cambrian time (c.a. 500 m.y. before the present). Modern examples of echinoderms include sea urchins, sea stars, and sea lilies (crinoids). The endoskeletons of echinoderms are composed of plates or ossicles (Fig. 1) which are with few exceptions, porous, single crystals of high-magnesian calcite. Despite their single crystal nature, fracture surfaces do not exhibit the near-perfect {10.4} cleavage characteristic of inorganic calcite. This paradoxical mix of biogenic and inorganic features has prompted much recent work on echinoderm skeletal crystallography. Furthermore, fossil echinoderm hard parts comprise a volumetrically significant portion of some marine limestones sequences. The ultrastructural and microchemical characterization of modern skeletal material should lend insight into: 1). The nature of the biogenic processes involved, for example, the relationship of Mg heterogeneity to morphological and structural features in modern echinoderm material, and 2). The nature of the diagenetic changes undergone by their ancient, fossilized counterparts. In this study, high resolution TEM (HRTEM), high voltage TEM (HVTEM), and STEM microanalysis are used to characterize tha ultrastructural and microchemical composition of skeletal elements of the modern crinoid Neocrinus blakei.

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