Investigation of Effect of Thermal Stresses on Damping and Thermal Expansion Behavior of Al/Al2O3 Metal Matrix Composites
Journal Title: Bonfring International Journal of Industrial Engineering and Management Science - Year 2012, Vol 2, Issue 4
Abstract
The present investigation is based on the effect of thermal residual stresses on the both thermal expansion and damping behavior of Al/Al2O3 Metal Matrix Composites (MMCs) processed by compo casting. Thermal expansion and damping properties have been studied experimentally as a function of temperature over a temperature range from room temperature to 400 C both in the heating and cooling cycles. Result shows the thermal expansion studies exhibited some residual strain, which increased with the increase in the weight % of the Al2O3. The damping capacity of both the composites and matrix alloy is found to increase with the increase in temperature during the heating cycle, whereas in the cooling cycle damping behavior exhibited maxima which became more pronounced with the increase in the weight percentage of the Al2O3. The damping maximum height decreases if the matrix strength is increased by increasing Al2O3. The appearance of the maxima may be linked with dislocation generation and motion as a result of plastic deformation of the matrix at the Al/Al2O3 interface. This phenomenon is attributed to the thermal stresses generated as a result of coefficient of thermal expansion mismatch between the composite constituent phases.
Authors and Affiliations
Madhu B. V, Pralhada Rao K, Girish D. P
Keywords
Related Articles
- EP ID EP161598
- DOI 10.9756/BIJIEMS.1809
- Views 160
- Downloads 0
Determinants of Effective Inventory Management A Study of Consumer Durable Retailers
Global retailing is evolving into hi-tech business Indian retail market is poised to follow the path with large number of global players eyeing the market. 10.6% of growth Indian Retail market has experienced between the...
Performance Appraisal Method Used in Top 10 IT Companies-360 Degree Feedback & Balanced Score Card: A Review
India is the worlds largest sourcing destination for the IT industry, accounting for approximately 52% of US $ 124-130 billion market. India employs about 10 million Indians and continues to contribute significantly to t...
A Computational Fluid Dynamics Investigation of Solar Air Heater Duct Provided with Inclined Circular Ribs as Artificial Roughness
This paper presents a Computational Fluid Dynamics (CFD) analysis of solar air heater duct to estimate its thermo-hydraulic performance. On the inner side of absorber plate, inclined circular ribs are provided to create...
Decision Making Model for Supplier Evaluation and Selection Using MCDM Methods
Supplier selection is viewed as one of the most important responsibility of purchasing department in any supply chain process. Purchasing managers needs to periodically evaluate supplier performance in order to retain th...
Structural Analysis of Front-End Cross Bar of a TATA407 Chassis Frame
The automotive industries are advancing various systems of a vehicle with innovative technologies. It is more essential to improve the vehicle performance at low manufacturing cost. Reduction of weight of various parts o...