Short Overview of the Foundations of Fracture Mechanics

2010 ◽  
pp. 381-391
Keyword(s):  
Fracture Mechanics ◽  
Short Overview

Large Scale Fracture Mechanics Testing

2008 ◽  
Author(s):  
Milan Brumovsky
Keyword(s):  
Czech Republic ◽  
Fracture Mechanics ◽  
Pressure Vessel ◽  
Large Scale ◽  
The Other ◽  
The Czech Republic ◽  
Short Overview ◽  
Scale Models ◽  
Leak Before Break ◽  
Reactor Pressure

This paper gives a short overview of experimental programs using large scale models/experiments realized in the Czech Republic with the aim to support the reactor pressure components of WWER type reactors. One part of the program was concentrated on reactor pressure vessel components only. It contained flat specimens with defects on one side and models with stress concentrators (nozzles, bolting joints) on the other side. Second part of the program was a part of the LBB (Leak-before-break) project applied to all WWER safety related pipings. Large scale models with defects, located in heterogenous (safe-end) as well as homogenous welds are described.

Computer simulations for the TEM bend contour technique

1996 ◽  
Vol 54 ◽  
pp. 134-135
Author(s):  
Vladimir Yu. Kolosov ◽  
Anders R. Thölén
Keyword(s):  
Computer Simulations ◽  
Real Space ◽  
Advantages And Disadvantages ◽  
Short Overview ◽  
Diffraction Contrast ◽  
Beam Method ◽  
Convergent Beam ◽  
Contour Technique

In this paper we give a short overview of two TEM applications utilizing the extinction bend contour technique (BC) giving the advantages and disadvantages; especially we consider two areas in which the BC technique remains unique. Special attention is given to an approach including computer simulations of TEM micrographs.BC patterns are often observed in TEM studies but are rarely exploited in a serious way. However, this type of diffraction contrast was one of the first to be used for analysis of imperfections in crystalline foils, but since then only some groups have utilized the BC technique. The most extensive studies were performed by Steeds, Eades and colleagues. They were the first to demonstrate the unique possibilities of the BC method and named it real space crystallography, which developed later into the somewhat similar but more powerful convergent beam method. Maybe, due to the difficulties in analysis, BCs have seldom been used in TEM, and then mainly to visualize different imperfections and transformations.

Bartók and Scarlatti: A study of motives and influence

2009 ◽  
Vol 50 (1-2) ◽  
pp. 3-27
Author(s):  
Balázs Mikusi
Keyword(s):  
Folk Music ◽  
Structural Model ◽  
Musical Style ◽  
Clear Cut ◽  
Short Overview ◽  
Historical Figure ◽  
Human Emotions

The long-held notion that Bartók’s style represents a unique synthesis of features derived from folk music, from the works of his best contemporaries, as well as from the great classical masters has resulted in a certain asymmetry in Bartók studies. This article provides a short overview of the debate concerning the “Bartókian synthesis,” and presents a case study to illuminate how an ostensibly “lesser” historical figure like Domenico Scarlatti could have proved important for Bartók in several respects. I suggest that it must almost certainly have been Sándor Kovács who called Scarlatti’s music to Bartók’s attention around 1910, and so Kovács’s 1912 essay on the Italian composer may tell us much about Bartók’s Scarlatti reception as well. I argue that, while Scarlatti’s musical style may indeed have appealed to Bartók in more respects than one, he may also have identified with Scarlatti the man, who (in Kovács’s interpretation) developed a thoroughly ironic style in response to the unavoidable loneliness that results from the impossibility of communicating human emotions (an idea that must have intrigued Bartók right around the time he composed his Duke Bluebeard’s Castle ). In conclusion I propose that Scarlatti’s Sonata in E major (L21/K162), which Bartók performed on stage and also edited for an instructive publication, may have inspired the curious structural model that found its most clear-cut realization in Bartók’s Third Quartet.

Fractography and Fracture Mechanics of Fracture of Steels

1978 ◽  
Vol 64 (7) ◽  
pp. 925-936 ◽  
Author(s):  
Ryoichi KOTERAZAWA
Keyword(s):  
Fracture Mechanics
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