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Unit
3:
Stuctural Strength and Stability
The Structural Strength and Stability
unit covers concepts related to two topics:
Designing Structures
Students learn to identify needs that a product can fulfill as
well as the "life story" of the product from its conception up
to and including its disposal. They learn that as ideas become
reality, practical matters such as cost, availability, and properties
of materials limit the product design and the choice of materials.
Students conduct tests to assess whether or not a product meets
the consumers' needs and to examine how to improve the design.
They learn to develop work plans and organize production. They
classify structures as solid, frame, or shell and investigate
the advantages and disadvantages of each.
Forces and Structures
In order to ensure that structures will not fail, students investigate
the external and internal forces acting on structures, with the
aim of learning techniques to strengthen and stabilize them. They
test structures to determine their performance and factor of safety.
The role of symmetrical design and how it affects strength and
stability is also explored.
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