How does volume fraction of fibers affect the strength of composites?
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The volume fraction of fibers in composites significantly impacts their mechanical properties. Increasing fiber volume fraction generally enhances stiffness, strength, and modulus of elasticity . However, there is a critical point beyond which further increase in fiber content can lead to a decline in ultimate strength due to issues like poor densification and fiber damage . Different fiber types, such as glass fibers and regenerated cellulose fibers, can influence the mechanical properties differently when varied in volume fraction within composites . The distribution of fibers within the composite, whether random or controlled, also plays a crucial role in determining the overall strength and toughness of the material . Therefore, optimizing the volume fraction of fibers is essential to achieve the desired balance between stiffness, strength, and toughness in composite materials.
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| Papers (5) | Insight |
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19 Citations | Increasing fiber volume fraction enhances the modulus of elasticity and yield stress in glass fiber reinforced polyurethane elastomer composites, as observed in the study on mechanical properties. |
| Variation in yarn fiber volume fraction due to compression during manufacturing impacts composite strength, highlighting the importance of accurate determination methods like SEM and X-ray micro-CT. | |
| Increasing fiber volume fraction enhances the strength of composites, with higher total fiber volume leading to improved stiffness and strength, as observed in the study on hybrid glass/cellulose reinforced thermoplastic compounds. | |
| The fiber volume fraction in SiCf/SiC-matrix composites initially enhances mechanical properties until a critical point, beyond which ultimate strength degrades due to open porosity and fiber-matrix interactions. | |
| The maximum fiber volume fraction in fiber reinforced composites gradually increases before reaching 78.54%, impacting the strength of composites. |
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