Waviness alters both geometric and mechanical properties of stochastic fibrous networks and significantly affects overall mechanical response, but few results are available in the literature on the subject. In this work, we explore the importance of the dimension of constituent fibers ~1D vs 2D! in determination of percolation thresholds, and other fundamental statistical properties of fibers h...

Mechanical properties of the adventitia are largely determined by the organization of collagen fibers. Measurements on the waviness and orientation of collagen, particularly at the zero-stress state, are necessary to relate the structural organization of collagen to the mechanical response of the adventitia. Using the fluorescence collagen marker CNA38-OG488 and confocal laser scanning microsco...

Sisal fiber-reinforced composites have huge potential applications in many industries. Different defects during the production process of composite may decrease performance these composites. In present work, one important such as waviness sisal fiber has been studied under compressive loading. Two types materials are considered for study. One is polymer matrix and another hybrid i.e carbon nano...

Wet Fiber Placement (WFP) is a novel process for manufacturing complex shaped parts from continuous fiber-reinforced polymers without semi-finished products. Here, dry fiber bundles (rovings) are in-line impregnated with thermoset resin, followed by almost tension-free deposition. The freshly and limp rovings allow placement in radii. Due to the lack of compression deposition, subsequent consol...

Thick-section composites are commonly used in fixed-wing and rotary-wing fatigue-critical, flightcritical components and structure. Manufacturing imperfections in thick composite structures, such as fiber waviness and porosity/voids, remain a serious problem that leads to significant component scrap rates in production. Such defects usually result in degraded strength and fatigue performance [1...

The onset of damage caused by the free-edge effect in plain-woven carbon fiber reinforced plastic (CFRP) specimens with an out-of-plane waviness under tension-tension fatigue loading is investigated. Numerical calculations show that interlaminar and intralaminar stresses close to are higher than equivalent at surrounding edge regions. Using submodels, influence chosen can be better assessed. co...