On the homogenization of metal matrix composites using strain gradient plasticity
The homogenized response of metal matrix composites（MMC） is studied using strain gradient plasticity.The material model employed is a rate independent formulation of energetic strain gradient plasticity at the micro scale and conventional rate independent plasticity at the macro scale. Free energy i...
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| Veröffentlicht in: | Acta mechanica Sinica 2014-04, Vol.30 (2), p.175-190 |
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| container_title | Acta mechanica Sinica |
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| creator | Azizi, Reza Niordson, Christian F. Legarth, Brian Nyvang |
| description | The homogenized response of metal matrix composites（MMC） is studied using strain gradient plasticity.The material model employed is a rate independent formulation of energetic strain gradient plasticity at the micro scale and conventional rate independent plasticity at the macro scale. Free energy inside the micro structure is included due to the elastic strains and plastic strain gradients. A unit cell containing a circular elastic fiber is analyzed under macroscopic simple shear in addition to transverse and longitudinal loading. The analyses are carried out under generalized plane strain condition. Micro-macro homogenization is performed observing the Hill-Mandel energy condition,and overall loading is considered such that the homogenized higher order terms vanish. The results highlight the intrinsic size-effects as well as the effect of fiber volume fraction on the overall response curves, plastic strain distributions and homogenized yield surfaces under different loading conditions. It is concluded that composites with smaller reinforcement size have larger initial yield surfaces and furthermore,they exhibit more kinematic hardening. |
| doi_str_mv | 10.1007/s10409-014-0028-7 |
| format | Article |
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Free energy inside the micro structure is included due to the elastic strains and plastic strain gradients. A unit cell containing a circular elastic fiber is analyzed under macroscopic simple shear in addition to transverse and longitudinal loading. The analyses are carried out under generalized plane strain condition. Micro-macro homogenization is performed observing the Hill-Mandel energy condition,and overall loading is considered such that the homogenized higher order terms vanish. The results highlight the intrinsic size-effects as well as the effect of fiber volume fraction on the overall response curves, plastic strain distributions and homogenized yield surfaces under different loading conditions. 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Free energy inside the micro structure is included due to the elastic strains and plastic strain gradients. A unit cell containing a circular elastic fiber is analyzed under macroscopic simple shear in addition to transverse and longitudinal loading. The analyses are carried out under generalized plane strain condition. Micro-macro homogenization is performed observing the Hill-Mandel energy condition,and overall loading is considered such that the homogenized higher order terms vanish. The results highlight the intrinsic size-effects as well as the effect of fiber volume fraction on the overall response curves, plastic strain distributions and homogenized yield surfaces under different loading conditions. It is concluded that composites with smaller reinforcement size have larger initial yield surfaces and furthermore,they exhibit more kinematic hardening.</description><subject>Classical and Continuum Physics</subject><subject>Computational Intelligence</subject><subject>Engineering</subject><subject>Engineering Fluid Dynamics</subject><subject>Homogenization</subject><subject>Homogenizing</subject><subject>Metal matrix composites</subject><subject>Plastic deformation</subject><subject>Plastic strain</subject><subject>Plasticity</subject><subject>Research Paper</subject><subject>Strain</subject><subject>Theoretical and Applied Mechanics</subject><subject>Unit cell</subject><subject>同质化</subject><subject>塑性应变梯度</subject><subject>应变梯度塑性</subject><subject>弹性应变</subject><subject>微观尺度</subject><subject>材料模型</subject><subject>纤维体积分数</subject><subject>金属基复合材料</subject><issn>0567-7718</issn><issn>1614-3116</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhoMoWKs_wFu8eVmd6WaT3aMUv6BQBD2HNJvdpuwmbZIF6693S4tHT8PA-8zHQ8gtwgMCiMeIwKDKAFkGMCszcUYmyMcuR-TnZAIFF5kQWF6Sqxg3ADlHgRPysXQ0rQ1d-963xtkflax31De0N0l1tFcp2G-qfb_10SYT6RCta2lMQVlH26Bqa1yi207FZLVN-2ty0agumptTnZKvl-fP-Vu2WL6-z58Wmc6ZSONdwEzZqNysqroQPOcrrJUCXRWC1WJVaKWhKOtazyqV11hCA8YoZDXqQq_KfEruj3O3we8GE5PsbdSm65QzfogSucBCzBjnYxSPUR18jME0chtsr8JeIsiDPnnUJ0d98qBPipGZHZk4Zl1rgtz4Ibjxo3-hu9OitXftbuT-NrGKlRUiy38BhFF_gQ</recordid><startdate>20140401</startdate><enddate>20140401</enddate><creator>Azizi, Reza</creator><creator>Niordson, Christian F.</creator><creator>Legarth, Brian Nyvang</creator><general>The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>20140401</creationdate><title>On the homogenization of metal matrix composites using strain gradient plasticity</title><author>Azizi, Reza ; Niordson, Christian F. ; Legarth, Brian Nyvang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c347t-3104e8fa3eb9d57636b1daa0c9574d7b5cac058ddc29a3d180f0eea14d1c5cb83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Classical and Continuum Physics</topic><topic>Computational Intelligence</topic><topic>Engineering</topic><topic>Engineering Fluid Dynamics</topic><topic>Homogenization</topic><topic>Homogenizing</topic><topic>Metal matrix composites</topic><topic>Plastic deformation</topic><topic>Plastic strain</topic><topic>Plasticity</topic><topic>Research Paper</topic><topic>Strain</topic><topic>Theoretical and Applied Mechanics</topic><topic>Unit cell</topic><topic>同质化</topic><topic>塑性应变梯度</topic><topic>应变梯度塑性</topic><topic>弹性应变</topic><topic>微观尺度</topic><topic>材料模型</topic><topic>纤维体积分数</topic><topic>金属基复合材料</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Azizi, Reza</creatorcontrib><creatorcontrib>Niordson, Christian F.</creatorcontrib><creatorcontrib>Legarth, Brian Nyvang</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Acta mechanica Sinica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Azizi, Reza</au><au>Niordson, Christian F.</au><au>Legarth, Brian Nyvang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On the homogenization of metal matrix composites using strain gradient plasticity</atitle><jtitle>Acta mechanica Sinica</jtitle><stitle>Acta Mech Sin</stitle><addtitle>Acta Mechanica Sinica</addtitle><date>2014-04-01</date><risdate>2014</risdate><volume>30</volume><issue>2</issue><spage>175</spage><epage>190</epage><pages>175-190</pages><issn>0567-7718</issn><eissn>1614-3116</eissn><abstract>The homogenized response of metal matrix composites（MMC） is studied using strain gradient plasticity.The material model employed is a rate independent formulation of energetic strain gradient plasticity at the micro scale and conventional rate independent plasticity at the macro scale. Free energy inside the micro structure is included due to the elastic strains and plastic strain gradients. A unit cell containing a circular elastic fiber is analyzed under macroscopic simple shear in addition to transverse and longitudinal loading. The analyses are carried out under generalized plane strain condition. Micro-macro homogenization is performed observing the Hill-Mandel energy condition,and overall loading is considered such that the homogenized higher order terms vanish. The results highlight the intrinsic size-effects as well as the effect of fiber volume fraction on the overall response curves, plastic strain distributions and homogenized yield surfaces under different loading conditions. 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| ispartof | Acta mechanica Sinica, 2014-04, Vol.30 (2), p.175-190 |
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| subjects | Classical and Continuum Physics Computational Intelligence Engineering Engineering Fluid Dynamics Homogenization Homogenizing Metal matrix composites Plastic deformation Plastic strain Plasticity Research Paper Strain Theoretical and Applied Mechanics Unit cell 同质化 塑性应变梯度 应变梯度塑性 弹性应变 微观尺度 材料模型 纤维体积分数 金属基复合材料 |
| title | On the homogenization of metal matrix composites using strain gradient plasticity |
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