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Here is some testing of a sample composite section. |
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Our
preliminary design was done using ANSYS, a finite
elements package. We also used it to assess the
stress distributions. NB: This image only shows the general form of the canoe, not the results of analysis. |
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Last year we put epoxy over the styrofoam, then sanded the male mould and poured the concrete. This resulted in an uneven bottom, and the loss of a week removing the bonded styrofoam. Sanding first, and then applying this plastic sheeting allowed us to remove the mould in a morning. |
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We tested our design in one of the flumes available in the Civil Department, comparing the drag with that produced by a model of last year's design. |
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This is a picture of the pour. The concrete was sufficiently stiff that we packed in on by hand. |