Known bicycle materials （1）

The materials used bicycle is beyond the previous MuGang chromium and aluminum, magnesium, carbon fiber, etc. Also appeared many new materials in the frame. Metal alloy materials about the book, but not much about the material in this bicycle, briefly introduced the bicycle. First about the metallic materials or. Stress and deformation and stress definition = σ = load/area (namely: per unit area can bear the weight) although load, but can increase the thickness of the area to reduce stress. From here also known MuGang chromium why, aluminum/titanium tube of different thickness. After the stress, deformation of the materials used for frame will. Its deformation can be divided into the elastic deformation and plastic deformation. Elastic deformation: although deformation, but remove after stress is restorable. Plastic deformation, stress and deformation away after can restore. Elastic rate: elastic rate is like spring as referred to in the materials of low resistance to deformation. The high rate of elastic material, hard after deformation is less load, Elastic rate is low, soft materials. After the load deformation As the bike materials, some parts need deformation more, some parts need less distortion. Elastic modulus ratio to Yang. The higher the rate of elastic data. The table below for the bicycle various material GRP elastic modulus. From the above knowable MuGang chromium alloys, the highest rate of elastic elastic lowest rate. Elastic rate will determine the strength and rigidity of the materials for the data of bicycle is very important.