Design and Analysis of Reinforced Fiber Composites by Pedro V. Marcal, Nobuki Yamagata

By Pedro V. Marcal, Nobuki Yamagata

The papers during this quantity current a extensive diversity of functions for bolstered fiber composites - from skinny shell constructions to tires. Linear and nonlinear structural habit (from linear buckling to nonlinear yelding and fracture) are mentioned in addition to various fabrics are offered. newest advancements in computational equipment for constructíons are provided in an effort to aid to save cash and time. this is often an edited selection of papers offered at a symposium on the WCCM, Barcelona, 2014.

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C. , Chong, A. C. , & Tong, P. (2003). Experiments and theory in strain gradient elasticity. Journal of the Mechanics and Physics of Solids, 51, 1477–1508. 14. , & Tsakmakis, C. (2010). Three-dimensional finite elements for large deformation micropolar elasticity. Computer Methods in Applied Mechanics and Engineering, 199, 2643–2654. 15. , & Si, J. (2013). A model of composite laminated beam based on the global–local theory and new modified couple-stress theory. Composite Structures, 103, 99–107.

The procedure of determination of the additional material parameter is offered for the case of simple beam under small strains. Numerical simulations of four-point bending test are presented to demonstrate advantage of the new model. 1 Introduction In the recent years, nonclassical continuum mechanics has become widely employed for dealing with various problems. There are two classes of generalized continuum theories: higher-grade and higher-order theories [1]. In brief, higher-grade theories employ higher-order gradients of the displacements, while higher-order continuum theories include additional kinematic variables attached to the material point.

6. 2 A Thin Composite Beam with 30ı Fiber Declination: Four-Point Bending The example above is a standard linear problem which can be solved analytically with respect to the deflection which can be assumed constant throughout the beam thickness. This simplicity occurs due to the fibers being aligned along the X1 axis. In the present example, we consider the case when the fibers have 30ı declination 44 S. Fedorova et al. Fig. 7 Comparison of FE simulations of four-point bending using different constitutive models (30ı fiber declination) angle which renders the problem unsolvable analytically.

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