Using the analytical model developed last week, with certain geometry constraints, stiffness of the proposed orthogonally assembled double-layer corrugated structures have been evaluated. Using design parameters optimized from maximum stiffness requirements, a rectangular shape sample and a circular shape sample have been built.

Detail:

Geometry constrains:

• Individual plate width >= 10 mm
• Maximum axial length = 100 mm
• Corrugated angle: 45 deg ~120 deg
• Maximum thickness (double layer): 15 mm ~ 30 mm
• Number of creases: 5 ~ 15

Design Optimization:

Using these constraints, the analytical stiffness model K is a function of number of creases and corrugated angle. By programing and evaluating the maximum stiffness, I got the following results:

(1) For rectangular shape:

(2) For circular shape:

Sample Manufacturing:

Using these design parameters from the modeling program, we can get the design profile automatically from a design program, with two layers of corrugation and the boundary connectors.

(1) For rectangular shape:

(2) For circular shape:

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