作者：

Xianqiao Wang^a & James D. Lee^a*

作者单位：

Department of Mechanical and Aerospace Engineering , The George Washington University , Washington, DC, 20052, USA

关键词：

• micromorphic theory, Eringen tensors, constitutive theory, generalized micromorphic solid/fluid, electromagnetic–thermoelastic coupling, micro/nanomechanics

摘要：

Micromorphic theory (MMT) envisions a material body as a continuous collection of deformable particles; each possesses finite size and inner structure. It is considered as the most successful top-down formulation of a two-level continuum model, in which the deformation is expressed as a sum of macroscopic continuous deformation and internal microscopic deformation of the inner structure. In this work, the kinematics including the objective Eringen tensors is introduced. Balance laws are derived by requiring the energy equation to be form-invariant under the generalized Galilean transformation. The concept of material force and the balance law of pseudomomentum are generalized for MMT. An axiomatic approach is demonstrated in the formulation of constitutive equations for a generalized micromorphic thermoviscoelastic solid, generalized micromorphic fluid, micromorphic plasticity, and micromorphic electromagnetic–thermoelastic solid. Applications of MMT in micro/nanoscale are discussed.

文章全文下载链接：

http://www.tandfonline.com/doi/full/10.1080/19475411.2010.484207#.U7tT3LJ7LFg

文章整理源自Taylor & Francis Online

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