Abstract
A critical problem in the application of metal matrix composites is the presence of high residual thermal stresses induced during the development process. These thermally induced stresses are generally detrimental to the service life of this type of composite. This article discusses the influence of maximum residual stresses on the intensity factor. The results interpreted in terms of damage, allowed us to identify the risk zones; characterized by a significant level of maximum residual stresses (S11Max, S22Max, S33Max), namely the particle/Matrix interface. The results also show that the loading conditions and the inter-distance between matrix and particle with two interfacial cracks have an important effect on max residual stresses and stress intensity factors.
Highlights
T oday, Metal Matrix Composite materials (MMC) are highly concerned materials in engineering applications mainly because of their mechanical properties and characteristics in general, these materials often have very high specific rigidity, strength and low density.during the planning of the composites at relatively high temperatures, residual stresses arise during the process of cooling these temperatures to room temperature
The results show that the loading conditions and the inter-distance between matrix and particle with two interfacial cracks have an important effect on max residual stresses and stress intensity factors
The results show that the loading conditions and the inter-distance between two particles with two inter-facial cracks have a significant effect on the stress intensity factors KI and KII, KIII [2]
Summary
T oday, Metal Matrix Composite materials (MMC) are highly concerned materials in engineering applications mainly because of their mechanical properties and characteristics in general, these materials often have very high specific rigidity, strength and low density.during the planning of the composites at relatively high temperatures, residual stresses arise during the process of cooling these temperatures to room temperature. The results show that the loading conditions and the inter-distance between matrix and particle with two interfacial cracks have an important effect on max residual stresses and stress intensity factors.
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