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Truss Design Challenge Experiment - Group 6 (2939637) |
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by Suzette Burckhard (SDstate_Civil_Engineering) |
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Web page |
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Experiment Description |
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For this experiment, the students in the lab were |
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required to design a truss or bridge to span a specific |
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distance and resist a 100 lb load in a four point flexure |
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test. All the requirements for the bridge are shown below: |
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Span length of 400 mm |
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Width of 75 mm |
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Maximum height of 75 mm |
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Maximum weight 100 grams |
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Must hold 45 kg (100 lbs) |
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No adhesion (glue, etc..) for connections |
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The challenge for the student in this experiment was |
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their bridge had to be printed in separate parts because |
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the bridges were to large to print all at once. The |
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students had to design connections for these parts |
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without the use of glue or other adhesives. The |
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connection design was critical because that is the |
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weakest points on their trusses. |
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Information on Group 6 s Bridge: |
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This is the design from Group 6 in the laboratory. Their |
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truss design is commonly known as a Warren Truss. This |
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group kept their design simple with a total of 2 parts. |
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They designed their truss to have as few parts as |
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possible to allow rapid prototyping and testing. This |
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group ran multiple test with varying member thicknesses |
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to determine the exact thickness they would need to |
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resist the 100 lb load. The bridge had a total weight of |
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102 grams and resisted a load of 99 lbs. The truss failed |
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due to overturning laterally. The group recommended using |
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cross bracing instead of straight lateral braces to |
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improve the design of their truss. |
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Note: |
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The handout for this experiment will be available soon. I |
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will provide a link to the handout in this description |
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when it is complete, so you can perform this experiment |
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yourself or with your students. |
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Date Published: 2021-01-20 05:44:02 |
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Identifier: thingiverse-2939637 |
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Item Size: 157739 |
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Media Type: data |
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# Topics |
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DesignProject |
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truss |
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testing |
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engineering |
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stl |
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Civil_engineering |
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thingiverse |
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bridge |
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teaching |
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Engineering |
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structure |
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Student |
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stem |
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education |
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experiment |
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design |
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Laboratory |
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# Collections |
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thingiverse |
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# Uploaded by |
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@xtream1101 |
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