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Theory and Design of Micromechanical Vibratory Gyroscopes
2007Fabrication technologies for microcomponents, microsensors, micromachines and microelectromechanical systems (MEMS) are being rapidly developed, and represent a major research effort worldwide. There are many techniques currently being utilised in production of different types of MEMS, including inertial microsensors, which have made it possible to ...
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Micromechanics of failure at high strain rates: Theory, experiments, and computations
Computers & Structures, 1988Abstract This paper examines the micromechanics of material failure by shear banding, void collapse and void growth, microcracking, and related phenomena at high strain rates. The following topics are discussed: (1) physical modeling and analytical formulation of void growth or void collapse in single crystals, where the effects of local anisotropic ...
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A micromechanics theory for homogenization and dehomogenization of aperiodic heterogeneous materials
Composite Structures, 2018Abstract Based on the recently discovered mechanics of structure genome, a micromechanics theory is developed for computing the effective properties and local fields of aperiodic heterogeneous materials . This theory starts with expressing the displacements of the heterogeneous material in terms of those of the corresponding homogeneous ...
Bo Peng, Wenbin Yu
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A micromechanical sub-modelling technique for implementing Onset Theory
Composite Structures, 2013Abstract A multi-scale modelling approach is described for implementation of the micromechanics-based Onset Theory for laminated composites. Micromechanical sub-models derived from a laminate shell or layered solid finite element model enable direct de-homogenised strain fields to be investigated without the need of strain enhancement factors.
Tuyen Tran +4 more
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A micromechanical theory of grain-size dependence in metal plasticity
Journal of the Mechanics and Physics of Solids, 1983Abstract T he effect of grain-size on the elastoplastic behavior of metals is investigated from the micromechanics standpoint. First, based on the observations that dislocation pile-ups, formation of cell structures, and other inelastic activities influenced by the presence of grain boundary actually take place transcrystallinely, a grain-size ...
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Aboudi’s Micromechanics Theories Applied to Multiscale Analysis of Composites
2009NASA Glenn Research Center in Cleveland, OH has worked with Professor Jacob Aboudi since 1992 to develop and implement his micromechanics theories into a user-friendly software suite. This effort has resulted in the publicly available Micromechanics Analysis Code with Generalized Method of Cells (MAC/GMC) software, along with the coupling of the code ...
Brett A. Bednarcyk, Steven M. Arnold
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Thermoelastic Damping of Micromechanical Resonators Based on Quintanilla Theory
International Journal of Structural Stability and DynamicsThis paper addresses the exploration of thermoelastic damping (TED) in a microbeam resonator, utilizing the Quintanilla generalized thermoelasticity theory. The study emphasized analyzing the influence of beam height on the microbeam resonators TED and also conducted a thorough assessment of the frequency shift and normalized attenuation in microbeam ...
Pravin Kumar +2 more
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Thermomechanical Behavior of Anisotropic Inelastic Composites: A Micromechanical Theory
Journal of Engineering Materials and Technology, 1991The first section of this paper deals with thermomecanical relations, the second with a first order mixture theory used for the micromechanical determination of the stiffness tensor of a metal matrix composite, the third with the discrepancies between analytical and calculated ...
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Serial and Parallel Connections of Micromechanical Resonators for Sensing: Theories and Applications
Journal of Microelectromechanical Systems, 2023Hong Long Chang
exaly