We are looking for a convenient material having spring characteristic also having good corrosion and fatigue resistance. This is a part of a knee joint which is used by people having artificial limbs. The frequesncy of the load on the part is 1/3 Hz as it indicates that the dynamic force effect with respect to the time during the gait of a human. If you can send me your e-mail, I can also send you the figure of the application and the a part.
Also I would like to know whether the geometry of the material is also important on the spring action. Any help would be appreciated.
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