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A very useful method of doing this is by plotting them as ''Ashby charts'', which represent each material on the chart as ellipses or ''bubbles'', whose width and height are determined by the range of the value of the properties. As you may already know, for composite...
Let's talk about the failure sequence of carbon fiber specimens! The article ''Carbon Fiber Reinforced Polymer and Epoxy Adhesive Tensile Test Failure Analysis Using Scanning Electron Microscopy'' has many interesting pictures! Morphological characteristics analysis...
It's safe to say that the leather caps and googles use during the '50s are long gone! During the end of the '60s, the first helmets made of a composite material (in this case, fiberglass) were already being developed. But what are F1 helmets made of today?...
Carbon fiber is made from organic polymers, which consist of long strings of molecules held together by carbon atoms. Most carbon fibers (about 90%) are made from the polyacrylonitrile (PAN) process. A small amount (about 10%) are manufactured from rayon or the...
In braiding, a mandrel is fed through the center of the machine at a uniform rate and fiber yarns from moving carriers on the machine braid over the mandrel at a controlled rate. The carriers work in pairs to accomplish an over/under braiding sequence. Two or more...
Many different properties of composite materials can be acquired through a stress-strain graph, such as Maximum Tensile Strength, Yield Strength, Young's Modulus, Resilience, Toughness, etc. As you can see, each different reinforcement shown in this graph...
The answer is simple, carbon fibers have a diameter between 5 and 10 micrometers. But that is kind of hard to visualize, right? So, let's compare them to something all humans have (some more than others), hair! Luckily, we have a very nice picture that...
As many questions related to materials engineering, to answer that we have to understand the unit cell structure of the material, in this case, graphite.The crystal structure of graphite consists of sp2 hybridized carbon atoms arranged two-dimensionally in a honeycomb...
Let’s investigate their chemistry to find out!
The answer lies in their structure!