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The CRUSHED Experiment. By: Carlos Sanabria Justin Roose Phillip Munday. The Experiment. We are to apply a quasi-hydrostatic pressure on a 6” diameter pipe. Figure 1 – Sketch Pipe under hydrostatic pressure. The Design Process. Hydrostatic Press. Outer Ring. Pipe.
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The CRUSHED Experiment By: Carlos Sanabria Justin Roose Phillip Munday
The Experiment • We are to apply a quasi-hydrostatic pressure on a 6” diameter pipe. Figure 1 – Sketch Pipe under hydrostatic pressure
The Design Process Hydrostatic Press Outer Ring Pipe Spacing (incompressible media) Figure 2 – Transverse cross section of the pipe being compressed by six sections
Final Design (Fall) Design for a surface pressure up to 10,000 psi Figure 3 – Final Design for the fall semester
The problem: • The strongest actuators that can accommodate our budget are not nearly as strong as our calculations assumed • Our sponsor advised that we should design around the actuator’s force
Available actuators considering our budget Figure 4 – Model Number RW50 Figure 5 – Model Number RW51
Actuator Dimensions 5.35 in 2.25 in 4.85 in 1.63 in 4.34 in 1.94 in Figure 6 – RW50 Dimensions Figure 7 – RW51 Dimensions
New Ring Dimensions 14.05 in 19.68 in Figure 8 – Ring Dimensions using RW50 Figure 9 – Ring Dimensions using RW51
New System… What next? Replacing Actuators New I-Beam Dimensions Natural Rubber Insertion Figure 10 – New System Layout and next steps
I - beams w s h t
I - beams 12.73 in w δ s h 8.11 in t Figure 11 – Ring Piece Dimensions and Deflection
I - beams NOT SIGNIFICANT!
I - beams 2.796 in 4 in 0.326 in 0.293 in Figure 12 – I - beam dimensions
Natural Rubber Insertion Dimensions have been recalculated with a rubber layer of 1/8” Natural Rubber Insertion Figure 13 – A close up view of the natural rubber insertion
Replacing Actuators by Stationary Columns L = Length of the Column Columns are characterized by it’s Slenderness Ratio K = Radius of Gyration
Replacing Actuators by Stationary Columns • If the Slenderness Ratio < 10 • The column is now bound by the Mechanical Properties • To ensure this: • L = 1.94 inch • same length as hydraulic cylinders • Diameter > 0.776 inch • Diameter is set to be 1 inch • Made out of structural steel ASTM - A36 • Same as I-beams
Replacing Actuators by Stationary Columns Stress = 12 ksi Strain = 0.0004
Final System New I-Beam Dimensions Columns Natural Rubber Insertion Figure 14 – Final System
Some Drawings(Sections) 2.4 in 2 in 3.05 in 3 in Figure 15 – Section Drawing
Cylinders Columns 1.9 in 1.9 in Figure 17 – Column Drawing Figure 16 – Cylinder Drawing
I - Beam 12.73 in w s h 8.11 in t Figure 18 – I - beam dimensions