Finite Element Simulation of Hydration Heat Using Fuzzy Logic Model of Hydration

2016 ◽  
Vol 677 ◽  
pp. 157-162
Author(s):  
Jitka Mádlová ◽  
Petr Štemberk ◽  
Alena Kohoutkova
Keyword(s):  
Finite Element ◽  
Fuzzy Logic ◽  
Finite Element Simulation ◽  
Concrete Structure ◽  
Heat Of Hydration ◽  
Logic Model ◽  
Hydration Heat ◽  
Maximum Temperature ◽  
Fuzzy Logic Model ◽  
Element Simulation

This paper deals with heat of hydration in a concrete structure at the early age. The influence of temperature on development of hydration heat in the concrete structure is implemented through a fuzzy-logic model of the degree of hydration. The transient heat transfer problem was solved as a three-dimensional finite element simulation. The whole process of calculation is implemented in MATLAB Environment. The result of this work provides temperature distribution in the structure for each time step, the maximum temperature in the structure, and the time when it occurs.

Defects Detection in Concrete Structure with Infrared Thermal Imaging and Numerical Simulation

2011 ◽  
Vol 378-379 ◽  
pp. 345-348
Author(s):  
Hong Guo Xu ◽  
Zhong He Shui ◽  
Bo Chen ◽  
Wei Chen ◽  
Sha Ding
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Finite Element Simulation ◽  
Thermal Imaging ◽  
Concrete Structure ◽  
Infrared Imaging ◽  
Imaging Method ◽  
Infrared Thermal Imaging ◽  
Element Simulation ◽  
Nondestructive Testing Method

In this paper, infrared imaging and temperature sensor monitoring equipment are used to detect the defect of concrete. By means of experiment and numerical analysis, a nondestructive testing method for concrete based on infrared thermal imaging and the finite element simulation of temperature field was established. Experimental and simulation results show that infrared thermal imaging method and the finite element simulation of temperature field can effectively detect the defect in the sample. When combining such two methods together, the information of internal concrete structure can be revealed more comprehensively and accurately.

Finite Element Simulation of Tire-Rim Interface

1989 ◽  
Vol 17 (4) ◽  
pp. 305-325 ◽  
Author(s):  
N. T. Tseng ◽  
R. G. Pelle ◽  
J. P. Chang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Contact Pressure ◽  
Element Model ◽  
Experimental Measurements ◽  
Inflation Pressure ◽  
Interference Fit ◽  
Element Simulation ◽  
Rubber Composite

Abstract A finite element model was developed to simulate the tire-rim interface. Elastomers were modeled by nonlinear incompressible elements, whereas plies were simulated by cord-rubber composite elements. Gap elements were used to simulate the opening between tire and rim at zero inflation pressure. This opening closed when the inflation pressure was increased gradually. The predicted distribution of contact pressure at the tire-rim interface agreed very well with the available experimental measurements. Several variations of the tire-rim interference fit were analyzed.

Numerical Simulation of Tire Sliding Events Involving Impacts with Holes and Bumps

1986 ◽  
Vol 14 (2) ◽  
pp. 125-136 ◽  
Author(s):  
Y. Nakajima ◽  
J. Padovan
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Finite Element Simulation ◽  
Full Range ◽  
Arbitrary Geometry ◽  
Operating Environments ◽  
Element Simulation ◽  
Simulation Scheme

Abstract This paper extends the finite element simulation scheme to handle the problem of tires undergoing sliding (skidding) impact into obstructions. Since the inertial characteristics are handled by the algorithm developed, the full range of operating environments can be accommodated. This includes the treatment of impacts with holes and bumps of arbitrary geometry.

Sign in / Sign up

Export Citation Format

Share Document