Short Time Perturbation Solution for Thermoelastic Instabilities in Planar Solidification

Faruk Yigit

doi:10.4028/www.scientific.net/AMR.445.295

Paper Titles

Deformation Texture Evolution of Low Carbon Steel with Heterogeneous Structure
p.269

Influence of Aging Temperatures and Times on Mechanical Properties of Vacuum High Pressure Die Cast Aluminum Alloy A356
p.277

Correlation between Mechanical Properties and Porosity Distribution of A356 in Gravity Die Casting and Low Pressure Die Casting
p.283

Investigation on the Microstructure and Mechanical Properties of New Al-Si Piston Alloys
p.289

Short Time Perturbation Solution for Thermoelastic Instabilities in Planar Solidification
p.295

Characteristics of As-Cast and Forged Biodegradable Mg-Ca Binary Alloy Immersed in Kokubo Simulated Body Fluid
p.301

Roll Casting of Aluminum Alloy Strip by a Single Roll Caster Equipped with a Scraper
p.307

Influence of the Processing Conditions on the Mechanical Properties of PA 6 - Halloysite Nanotubes Nanocomposites for Injection Moulding
p.313

Influence of Packing Phase Parameters in the Optimization of Mechanical, Weight Reduction and Dimensional Properties of Microcellular Foaming Injection Molding of Polypropilene
p.319

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 445Short Time Perturbation Solution for Thermoelastic...

Short Time Perturbation Solution for Thermoelastic Instabilities in Planar Solidification

Abstract:

A simplified thermomechanical growth instability model for early stages of solidification porcess is obtained. The model consists of a thermally deformable mold of finite thickness. The inclusion of the mold into the model introduces a parameter known as distortivity which plays an important role in the thermoelastic instability problems. The results show that the perturbation in contact pressure tends asymptotically to a maximum value at larger values of time. The magnitude of the contact pressure perturbation decreases as the thickness of the mold increases whereas it increases as the distortivity of the mold increases.

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Periodical:

Advanced Materials Research (Volume 445)

Pages:

295-300

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.445.295

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Online since:

January 2012

Authors:

Faruk Yigit

Keywords:

Instability, Perturbation, Solidification, Thermoelastic

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References

[1] O. Richmond, L. G., Hector Jr., and J. M. Fridy, Growth Instability During Non-Uniform Directional Solidification of Pure Metals, ASME J. Appl. Mech., vol. 57, 529-536, (1990).

DOI: 10.1115/1.2897055

Google Scholar

[2] N. -Y. Li and J.R. Barber, Thermoelastic Instability in Planar Solidification, Int. J. Mech. Sci., vol. 33, No. 12, 945-959, (1991).

DOI: 10.1016/0020-7403(91)90051-4

Google Scholar

[3] F. Yigit, N. -Y. Li, and J.R. Barber, Effect of Thermal Capacity on Thermoelastic Instability During the Solidification of Pure Metals, J. Thermal Stresses, vol. 16, 285-309, (1993).

DOI: 10.1080/01495739308946231

Google Scholar

[4] F. Yigit, Effect of Mold Properties on Thermoelastic Instability in Unidirectional Planar During Solidification, J. Thermal Stresses, vol. 21, pp.55-81, (1998).

DOI: 10.1080/01495739808956135

Google Scholar