Flexural Fatigue Performance of Glass Fiber/Epoxy Step-Wise Functionally and Non-Functionally Graded Composites of Different Structures
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Abstract
Flexural fatigue performance of newly developed step-wise functionally graded (FG) composites has been investigated experimentally. Two unidirectional glass fiber (UGF)/epoxy FG composites with overall fiber volume fraction of 39.9 ± 0.3% and thickness of 6.0 ± 0.1 mm were fabricated using hand lay-up technique. The fabrication proposed technique depends on the variation of the composite structure achieved by three different templates. A non-functionally graded (NFG) composite laminate with the same overall fiber volume fraction and thickness was also fabricated using a fourth template for comparison. Each of the FG and NFG composites is made of six plies. Each ply has a thickness of 1.0 mm. This occurs by controlling the amount of matrix in each ply (constant matrix amount for all plies). Fatigue tests were performed at zero mean stress. A 20% reduction of the initial flexural stiffness was taken as a failure criterion. The S–N curves for the fabricated FG and NFG composites have been constructed as design curves. For FG composites, the effects of the spatial gradient of fiber content and plies stacking sequence on both S–N relationships and the specimens’ surface temperature rise were studied. Two-parameter Weibull distribution function was used to statistically analyze the fatigue life results.
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Articles in the same Issue
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- Polymer Flow Behavior Analysis Based on Physical Visualization Technology for Ultrasonic Vibration-Assisted Injection Molding
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Articles in the same Issue
- Contents
- Contents
- Review Articles
- Influence of Carbon Fillers on Thermal Properties and Flammability of Polymeric Nanocomposites
- Regular Contributed Articles
- Polymer Flow Behavior Analysis Based on Physical Visualization Technology for Ultrasonic Vibration-Assisted Injection Molding
- Flexural Fatigue Performance of Glass Fiber/Epoxy Step-Wise Functionally and Non-Functionally Graded Composites of Different Structures
- Establishment and Effect of Constraint on Different Mechanical Properties of Bamboo Filler Reinforced Epoxy Composite
- Experimental Investigation on Mechanical and Thermo-Mechanical Properties of Alumina Filled Polypropylene Composites Using Injection Molding Process
- Development and Characterization of Polyurethane and Acrylonitrile Butadiene Styrene and their Compatibilized Blends
- Mechanical Properties of Polydimethylsiloxane as a Function of the Amount and Type of Crosslinking Agent
- Numerical Investigation of Effect of Rotor Phase Angle in Partially-Filled Rubber Mixing
- Method of Calculating the Fluid Permeability of Machined Skin-Covered Porous Sheets from Experimental Flow Data
- Analysis of Models Predicting Morphology Transitions in Reactive Twin-Screw Extrusion of Bio-Based Polyester/Polyamide Blends
- A Combined Experimental and Modelling Approach towards an Optimized Heating Strategy in Thermoforming of Thermoplastics Sheets
- Analyzing the Influence of Surface Renewal on Diffusive Mass Transport in Vented Single-Screw Extruders
- Research on Optimizing Parameters of Thermal Bonding Technique for PMMA Microfluidic Chip
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts