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contributor authorRussell J. McDonald
contributor authorPeter Kurath
date accessioned2017-05-09T00:20:01Z
date available2017-05-09T00:20:01Z
date copyrightJuly, 2006
date issued2006
identifier issn0094-4289
identifier otherJEMTA8-27084#401_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/133772
description abstractThermal cycling has been experimentally demonstrated to diminish the performance of many reinforced materials. The coefficient of thermal expansion mismatch is the driving force for the development of high self-equilibrating stresses and strains in the vicinity of the reinforcement. To glean the magnitude of these stresses, a simple geometry, a spherical particulate (SiC) in a spherical domain (aluminum W319) was investigated. A set of partitioned strain rate equations considered temperature dependent material properties for thermal, elastic, mechanical plastic, and creep plastic deformation. The mechanical plasticity model utilized an improved Armstrong-Fredrick kinematic hardening algorithm and a Fisher type rate dependent yield criteria. A hyperbolic sine relation proposed by (1954, “ Some Fundamental Experiments on High Temperature Creep,” J. Mech. Phys. Solids, 3, pp. 85–116) was used to model creep deformation. A multidimensional residual stress state due to cooling from the molten state was considered in the simulations. Two damage parameters, Findley and equivalent plastic strain, were employed to estimate cyclic damage. While the life estimates are crude, they both predict finite lives for reasonable service temperature ranges.
publisherThe American Society of Mechanical Engineers (ASME)
titleDeformation and Life Estimates for a Metal Matrix—Spherical Particulate Subjected to Thermomechanical Loading
typeJournal Paper
journal volume128
journal issue3
journal titleJournal of Engineering Materials and Technology
identifier doi10.1115/1.2209649
journal fristpage401
journal lastpage418
identifier eissn1528-8889
keywordsDeformation
keywordsCreep
keywordsTemperature
keywordsComposite materials
keywordsParticulate matter
keywordsStress
keywordsEngineering simulation
keywordsCooling
keywordsMechanisms AND Fatigue
treeJournal of Engineering Materials and Technology:;2006:;volume( 128 ):;issue: 003
contenttypeFulltext


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