Finite Element Analysis of CRCP Slab Track System Designed with Active Crack Control

2019 ◽  
Author(s):  
Puguh Budi Prakoso ◽  
Bernhard Lechner
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
Crack Control ◽  
Slab Track ◽  
Track System

The Study of Glass Cutting Based on the Micro-Crack Control

2013 ◽  
Vol 562-565 ◽  
pp. 1408-1413
Author(s):  
Chao Huang ◽  
Ji Min Chen ◽  
Jian Wen Yuan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Field ◽  
Heat Effect ◽  
Green Laser ◽  
Element Analysis ◽  
Crack Control ◽  
Diode Pumped ◽  
Glass Cutting ◽  
Line Crack

A 532nm Diode-Pumped green laser was used to cut glass with the Micro-Crack control. The Micro-Crack was the micron-sized round-like crack caused by laser in the glass and the line-crack around the round-like crack. This paper researched the generation of the Micro-Crack and discussed how to control it, then researched the stress field in the glass during the cutting by finite element analysis. Propose a new method about the glass cutting which had advantages of low power, low heat effect, irregular-curve cutting and slant cutting.

Mechanical Capacity Analysis of Large Diameter Prestressed Concrete Cylinder Pipe (PCCP)

2012 ◽  
Vol 166-169 ◽  
pp. 3214-3219
Author(s):  
Yu Liang Wang ◽  
Yong Qing Bi ◽  
Xiao Jie Zhou
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Prestressed Concrete ◽  
Design Method ◽  
Large Diameter ◽  
Elastic Plane ◽  
Element Analysis ◽  
Crack Control ◽  
Concrete Cylinder ◽  
Prestressed Concrete Cylinder Pipe

Prestressed concrete cylinder pipe(PCCP) has been applied to oil, water conservancy and hydropower engineering and other fields as a kind of high quality composite pipe. Because of its complicated structure and work condition, mechanical behavior of PCCP is not uniform. In this paper, the mechanical model is established in PCCP working stage based on the elastic plane strain theory of axisymmetric multilayer cylinders and the mechanism of the ring-like strands action. Then the design method of prestressing is put forward according to the aim at the crack control. The stress is analyzed with finite-element analysis in the condition of different pressure, and also the method is amended compared with the finite-element analysis. It is indicated that the design method of prestressing is reasonable compared with specification of both domestic and international.

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