An Engineering Approach to Adaptation and Calibration

2006 ◽  
pp. 134-147 ◽  
Author(s):  
Michael Fahrmair ◽  
Wassiou Sitou ◽  
Bernd Spanfelner
Keyword(s):  
Engineering Approach

On the nominal transverse shear strain to characterize the severity of creasing

TAPPI Journal ◽  
2018 ◽  
Vol 17 (04) ◽  
pp. 231-240
Author(s):  
Douglas Coffin ◽  
Joel Panek
Keyword(s):  
Shear Strain ◽  
Transverse Shear ◽  
Elastic Limit ◽  
Experimental Results ◽  
Transverse Shear Strain ◽  
Maximum Strain ◽  
Machine Direction ◽  
Engineering Approach ◽  
Wide Range ◽  
Analytic Expression

A transverse shear strain was utilized to characterize the severity of creasing for a wide range of tooling configurations. An analytic expression of transverse shear strain, which accounts for tooling geometry, correlated well with relative crease strength and springback as determined from 90° fold tests. The experimental results show a minimum strain (elastic limit) that needs to be exceeded for the relative crease strength to be reduced. The theory predicts a maximum achievable transverse shear strain, which is further limited if the tooling clearance is negative. The elastic limit and maximum strain thus describe the range of interest for effective creasing. In this range, cross direction (CD)-creased samples were more sensitive to creasing than machine direction (MD)-creased samples, but the differences were reduced as the shear strain approached the maximum. The presented development provides the foundation for a quantitative engineering approach to creasing and folding operations.

Implementing Enterprise Systems Engineering Enabled by the Digital Engineering Approach

ASCEND 2020 ◽  
2020 ◽  
Author(s):  
James Martin ◽  
Ryan A. Noguchi ◽  
Robert Minnichelli ◽  
Marilee J. Wheaton
Keyword(s):  
Systems Engineering ◽  
Enterprise Systems ◽  
Engineering Approach ◽  
Digital Engineering
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