Podcast
Questions and Answers
Which material property is least likely to influence the suitability of a material for a product or structure?
Which material property is least likely to influence the suitability of a material for a product or structure?
- Visual appeal
- Environmental impact during disposal
- Availability
- Coefficient of thermal expansion (correct)
What role does an external force play in the context of a structure?
What role does an external force play in the context of a structure?
- It affects the structural integrity only when combined with an internal force
- It operates independently of internal forces (correct)
- It is solely responsible for the structural stability
- It is generated internally within the structure
Which of the following describes shear force?
Which of the following describes shear force?
- A force that expands a structure
- A force acting in opposite directions (correct)
- A force that causes a structure to contract
- A force that causes a structure to twist
When considering materials, why is cost an important factor?
When considering materials, why is cost an important factor?
What type of internal force is primarily responsible for stretching a material?
What type of internal force is primarily responsible for stretching a material?
Flashcards
Force
Force
A push or pull motion that can make an object start or stop moving. It acts on all structures.
Internal Force
Internal Force
A force that arises from within a structure. It can be compression, tension, shear, or torsion.
External Force
External Force
A force that acts on an object or structure from the outside. Gravity and wind are examples.
Shear Force
Shear Force
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Torsion Force
Torsion Force
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Study Notes
Materials Considerations
- Material properties should benefit the product or structure
- Material availability: Rare or unavailable materials may not be suitable
- Cost: Material transport costs may outweigh benefits
- Aesthetics: Visual appeal of the material.
- Disposal: Difficult or costly disposal and environmental harm are factors
Vocabulary Definitions
- Force: A push or pull that can start or stop movement, affecting all structures.
- Internal Force: A force originating within a structure. Classified as compression, tension, shear, or torsion.
- External Force: A force acting on a structure from outside. Examples include gravity and wind.
- Shear: A force pushing in two opposing directions.
- Torsion: A twisting force.
- Tension: A force that stretches or lengthens.
- Compression: A force that squeezes or shortens.
- Sensor: A device that detects or measures a specific condition. Engineers utilize sensors to detect vibrations.
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