scholarly journals An Innovative Large Deformation Method for Measuring Young’s Modulus in a Thin Flexible Multi-layered Material (Own-weight Multi-layered Circular Ring Method)

2018 ◽  
Vol 2018 (63) ◽  
pp. 53-62
Author(s):  
Atsumi OHTSUKI ◽  
Gyo SHO
Proceedings ◽  
2018 ◽  
Vol 2 (8) ◽  
pp. 553
Author(s):  
Atsumi Ohtsuki

An innovative mechanical testing method (Compressive Circular Ring Method) is provided for measuring Young’s modulus of each layer in a flexible multi-layered material. The method is based on a nonlinear large deformation theory. By just measuring the vertical displacement or the horizontal displacement of the ring, Young’s modulus of each layer can be easily obtained for various thin multi-layered materials. Measurements were carried out on an electrodeposited twolayered wire. The results confirm that the new method is suitable for flexible multi-layered thin wires. In the meantime, the new method can be applied widely to measure Young’s modulus of thin layers formed by PVD, CVD, Coating, Paint, Cladding, Lamination, and others.


2010 ◽  
Vol 24-25 ◽  
pp. 371-377 ◽  
Author(s):  
Atsumi Ohtsuki

This report deals with an innovative method (Own-Weight Cantilever Method) to measure Young’s modulus of flexible thin materials. A newly developed method is based on the large deformation theory considering large deformation behaviors due to own-weight in flexible thin materials. Analytical solutions are derived by using Bessel Functions. By means of measuring the horizontal displacement or the vertical displacement at a free end of a cantilever, Young’s modulus can be easily obtained for various flexible thin and long materials. Measurements were carried out on a piano wire. The results confirm that the new method is suitable for flexible thin wires.


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