Modeling the Mechanical Behavior of Short Fiber Reinforced Composites

Böhm, H.J.

doi:10.1007/978-3-7091-2776-6_2

Cited by 3 publications

(2 citation statements)

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“…Accordingly, MoriTanaka methods are well suited for describing materials with aligned matrix-inclusion rnicrotopologies; for extensions to the nonaligned case see e.g. (Bohm, 2004). For the typical case of stiffer reinforcements embedded in a more compliant matrix, Mori-Tanaka estimates for the effective elastic moduli are always on the low side, compare section 2.4.…”

Section: Estimates For Nondilute Reinforcement Volume Fractionsmentioning

confidence: 98%

“…For example, due to inter-phase fluctuations of plastic strains elastic isotropy of a microgeometry does not guarantee elastoplastic anisotropy. A number of issues pertaining to unit cell models that use simple periodic arrangements of discontinuous reinforcements are discussed elsewhere in this volume (LLorca, 2004;Bohm, 2004) for the cases of particles and aligned short fibers.…”

Section: Periodic Microfields and Unit Cellsmentioning

confidence: 99%

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A Short Introduction to Continuum Micromechanics

Böhm

2004

Mechanics of Microstructured Materials

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Basic issues in continuum mechanical modeling of microstructured materials are discussed and a number of physically based modeling approaches are presented, among them mean field and bounding methods as well as unit cell and embedding models. In addition, important aspects of multi-scale modeling strategies are addressed and a short introduction to the treatment of damage at the constituent level within micromechanical models is given.

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Section: Estimates For Nondilute Reinforcement Volume Fractionsmentioning

confidence: 98%

Section: Periodic Microfields and Unit Cellsmentioning

confidence: 99%

A Short Introduction to Continuum Micromechanics

Böhm

2004

Mechanics of Microstructured Materials

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Investigation of Thermal and Mechanical Properties of Micro Crystalline Cellulose Based Composites

Maduranga

Silva

Samarasekara

et al. 2020

2020 Moratuwa Engineering Research Conference (MERCon)

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Computational Simulation of Composites Reinforced by Planar Random Fibers: Homogenization and Localization by Unit Cell and Mean Field Approaches

Duschlbauer¹,

Böhm

Pettermann

2006

Journal of Composite Materials

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The linear thermoelastic and thermophysical behavior of a short fiber reinforced composite material with planar random fiber arrangement is investigated by advanced numerical and analytical micromechanical methods. On the one hand, finite element based multi-fiber unit cells are introduced that contain 40-50 short fibers in arrangements approximating 2D random orientation distributions. On the other hand, the same fiber arrangements are investigated by an extended Mori-Tanaka mean field approach that can handle both statistical and discrete descriptions of the fiber orientations. Within the Mori-Tanaka scheme average microfields are extracted for individual fibers, and finite-length cylindrical reinforcements are modeled via averaged dilute concentration tensors that are evaluated numerically by finite element analysis. Homogenization and localization are performed for a metal matrix composite consisting of copper, reinforced by 21 vol% of carbon fibers that closely approximate a planar random arrangement. Simulation results on the macroscopic and microscopic linear elastic, thermoelastic, and thermal conductivity responses obtained by the two approaches are compared and excellent agreement is found.

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Modeling the Mechanical Behavior of Short Fiber Reinforced Composites

Cited by 3 publications

References 50 publications

A Short Introduction to Continuum Micromechanics

A Short Introduction to Continuum Micromechanics

Investigation of Thermal and Mechanical Properties of Micro Crystalline Cellulose Based Composites

Computational Simulation of Composites Reinforced by Planar Random Fibers: Homogenization and Localization by Unit Cell and Mean Field Approaches

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