Effect of spatial inhomogeneity in fiber packing on the strength variability of Al–matrix composites

Ramamurty, Upadrasta; Seshacharyulu, T.

doi:10.1016/s0921-5093(99)00082-9

Cited by 9 publications

(4 citation statements)

References 15 publications

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“…Some of the research results in this area have been applied to study the compressional [3,19,20] and shear [21] behaviors of general fiber assemblies, leading to considerable progress in those areas. Furthermore, the fiber packing problem has also been studied in fiber-reinforced composite materials [22][23][24].…”

Section: Packing and System Configuration Of Fibrous Materialsmentioning

confidence: 99%

Fibrous Materials as Soft Matter

Pan

2007

Textile Research Journal

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This paper proposes a new type of soft matter, namely fibrous materials. The common characteristics of soft matter that are shared by fibrous materials, such as the multiphase composition, porous and highly deformable structures, and the non-negligible contributions of entropy to the material behavior are illustrated. More importantly, some unique problems, complex and interesting, yet more or less unrealized, or ignored in dealing with fibrous materials are highlighted. The study includes the packing geometry of fibers, macro—micro behavioral inconsistencies, friction and self-locking mechanisms, bi-modular behavior, and allometric or scaling problems. The fabric wrinkling or crumpling problem and its peculiar fracture behavior and failure criteria are discussed. This paper also elucidates the significance of treating fibrous materials as soft matter and the great potential of such study to materials in general and to biomaterials in particular.

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Section: Packing and System Configuration Of Fibrous Materialsmentioning

confidence: 99%

Fibrous Materials as Soft Matter

Pan

2007

Textile Research Journal

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“…Topological variation in microstructures (a) resin pockets[5], (b) fibre segregation[6], (c) dense packing with occasional matrix damage[1], (d) resin flow channels[7].…”

mentioning

confidence: 99%

Effect of fibre topology on hygro-mechanical response of polymer matrix composites

Jain

Mukherjee

Kwatra

2015

International Journal of Heat and Mass Transfer

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“…Another factor could be the large size of the fibers vis-à-vis the specimen size, leading a stress concentration analogous to that present at a notch as per fracture mechanics, leading to failure localization. However, the spatial as well as the specimen-to-specimen variations is fiber volume fraction are the additional considerations that have to be taken into consideration for understanding the AMC strength variability [4,19].…”

Section: Tmc Vs Amcmentioning

confidence: 99%

Assessment of load transfer characteristics of a fiber-reinforced titanium-matrix composite

Ramamurty¹

2005

Composites Science and Technology

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The extent of stress transfer that occurs around broken fibers dictates the longitudinal strength as well as the reliability of the fiber-reinforced composites. The governing load transfer characteristics of a $32-vol% SiC fiber reinforced Ti-6Al-4V matrix composite (TMC) were investigated by recourse to uniaxial tension and 4-point bend flexure tests. Measured strengths and the variability in them are compared with the predictions of different load sharing models. The experimental tensile stress-strain response indicates to localization in fiber failure and the local load sharing (LLS) model predicts the composite strength more closely than a global load sharing (GLS) model. The flexure strengths are significantly larger than those predicted using the analytical models but are similar to that obtained using simulations that incorporate stress gradients and LLS. Broader distribution in flexure strength is also in agreement with simulation results, indicating that the LLS governs the strength of the TMCs. Implications of this observation are discussed. The TMCs are compared and contrasted with the Al-matrix composites in terms of their strength variability and size-scaling.

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Effect of spatial inhomogeneity in fiber packing on the strength variability of Al–matrix composites

Cited by 9 publications

References 15 publications

Fibrous Materials as Soft Matter

Fibrous Materials as Soft Matter

Effect of fibre topology on hygro-mechanical response of polymer matrix composites

Assessment of load transfer characteristics of a fiber-reinforced titanium-matrix composite

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