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    Deformation and Life Estimates for a Metal Matrix—Spherical Particulate Subjected to Thermomechanical Loading

    Source: Journal of Engineering Materials and Technology:;2006:;volume( 128 ):;issue: 003::page 401
    Author:
    Russell J. McDonald
    ,
    Peter Kurath
    DOI: 10.1115/1.2209649
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Thermal 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.
    keyword(s): Deformation , Creep , Temperature , Composite materials , Particulate matter , Stress , Engineering simulation , Cooling , Mechanisms AND Fatigue ,
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      Deformation and Life Estimates for a Metal Matrix—Spherical Particulate Subjected to Thermomechanical Loading

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    http://yetl.yabesh.ir/yetl1/handle/yetl/133772
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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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