Numerical study of the thermomechanical behavior of viscoelastic bodies in plane harmonic deformation

1985 ◽  
Vol 21 (1) ◽  
pp. 8-13
Author(s):  
B. P. Gumenyuk ◽  
V. G. Karnaukhov ◽  
V. I. Kozlov
Keyword(s):  
Numerical Study ◽  
Thermomechanical Behavior ◽  
Harmonic Deformation ◽  
Viscoelastic Bodies

Role of Microstructure in the Thermomechanical Behavior of SMA Composites

1999 ◽  
Vol 121 (1) ◽  
pp. 86-92 ◽  
Author(s):  
Gu Quan Song ◽  
Qing Ping Sun ◽  
M. Cherkaoui
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Volume Fraction ◽  
Numerical Study ◽  
Thermomechanical Behavior ◽  
Stress And Strain ◽  
Strengthening Effect ◽  
Microstructure Design ◽  
Quantitative Basis

A numerical study on the role of microstructure in the thermomechanical behavior of shape memory alloy (SMA) composites under uniaxial tension is performed. The simulation is based on the micromechanics model established recently by the authors. The influence of the shape and volume fraction of SMA on the overall behavior of the composite as well as on the internal stress and strain evolution is investigated. The strengthening effect of SMA on ductile matrix is illustrated. The obtained results demonstrate several interesting features of the new composite and may serve as a quantitative basis for the microstructure design of this composite in the future.

Experimental And Numerical Study Of The Thermomechanical Behavior Of A Stamping Operation

2007 ◽  
Author(s):  
Ledoux Yann ◽  
Louche Hervé ◽  
Vacher Pierre ◽  
Arrieux Robert
Keyword(s):  
Numerical Study ◽  
Thermomechanical Behavior

Numerical study of the low-frequency atomic dynamics in a Lennard-Jones glass

1998 ◽  
Vol 77 (2) ◽  
pp. 473-484 ◽  
Author(s):  
M. Sampoli, P. Benassi, R. Dell'Anna,
Keyword(s):  
Numerical Study ◽  
Low Frequency ◽  
Lennard Jones

Numerical simulation of the tree higro-thermal response in forest fire environment

2020 ◽  
pp. 57-65
Author(s):  
Eusébio Conceiçã ◽  
João Gomes ◽  
Maria Manuela Lúcio ◽  
Jorge Raposo ◽  
Domingos Xavier Viegas ◽  
...  
Keyword(s):  
Forest Fire ◽  
Numerical Study ◽  
Thermal Response ◽  
View Factor ◽  
Tree Model ◽  
Pine Tree ◽  
Surface Temperatures ◽  
Fire Environment ◽  
Fire Front ◽  
Heat Exchanges

This paper refers to a numerical study of the hypo-thermal behaviour of a pine tree in a forest fire environment. The pine tree thermal response numerical model is based on energy balance integral equations for the tree elements and mass balance integral equation for the water in the tree. The simulation performed considers the heat conduction through the tree elements, heat exchanges by convection between the external tree surfaces and the environment, heat exchanges by radiation between the flame and the external tree surfaces and water heat loss by evaporation from the tree to the environment. The virtual three-dimensional tree model has a height of 7.5 m and is constituted by 8863 cylindrical elements representative of its trunks, branches and leaves. The fire front has 10 m long and a 2 m high. The study was conducted taking into account that the pine tree is located 5, 10 or 15 m from the fire front. For these three analyzed distances, the numerical results obtained regarding to the distribution of the view factors, mean radiant temperature and surface temperatures of the pine tree are presented. As main conclusion, it can be stated that the values of the view factor, MRT and surface temperatures of the pine tree decrease with increasing distance from the pine tree in front of fire.

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