Truss Design Challenge Experiment

	Truss Design Challenge Experiment - Group 3 (2939498)
	by Suzette Burckhard (SDstate_Civil_Engineering)
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	Experiment Description
	For this experiment, the students in the lab were
	required to design a truss or bridge to span a specific
	distance and resist a 100 lb load in a four point flexure
	test. All the requirements for the bridge are shown below:
	Span length of 400 mm
	Width of 75 mm
	Maximum height of 75 mm
	Maximum weight 100 grams
	Must hold 45 kg (100 lbs)
	No adhesion (glue, etc..) for connections

	The challenge for the student in this experiment was
	their bridge had to be printed in separate parts because
	the bridges were to large to print all at once. The
	students had to design connections for these parts
	without the use of glue or other adhesives. The
	connection design was critical because that is the
	weakest points on their trusses.

	Information on Group 3 s Bridge:
	This is the design from Group 3 in the laboratory. Their
	truss design is commonly known as a Warren Truss. This
	group kept their design simple with a total of 3 parts.
	They designed their lateral connection (the connector and
	middle connector file) to hold the truss together to
	resist the normal and shear forces acting along the
	connections and to resist overturning laterally. The
	bridge had a total weight of 102 grams and resisted a
	load of 81 lbs before failure. The bridge failed due to
	overturning laterally at the center of the truss. To
	improve their design the group recommended using cross
	bracing at the center instead of straight line
	connections.

	Note:
	The handout for this experiment will be available soon. I
	will provide a link to the handout in this description
	when it is complete, so you can perform this experiment
	yourself or with your students.

	Date Published: 2021-01-20 05:41:51
	Identifier: thingiverse-2939498
	Item Size: 250706
	Media Type: data

	# Topics
	DesignProject
	truss
	testing
	engineering
	stl
	Civil_engineering
	thingiverse
	bridge
	teaching
	Engineering
	structure
	Student
	education
	experiment
	design
	Laboratory

	# Collections
	thingiverse

	# Uploaded by
	@xtream1101

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