Create a detailed pictorial sketch or use 3D modeling software to document the best choice, based upon the design team’s decision matrix. Present a workable solution to the design problem. Unit 2: Materials and Structures (40 days) (14 Days) Understandings: Laws of motion describe the interaction of forces acting on a body. Structural member properties including centroid location, moment of inertia, and modulus of elasticity are important considerations for structure design. Static equilibrium occurs when the sum of all forces acting on a body are equal to zero. Applied forces are vector quantities with a defined magnitude, direction, and sense, and can be broken into vector components. Forces acting at a distance from an axis or point attempt or cause an object to rotate. In a statically determinate truss, translational and rotational equilibrium equations can be used to calculate external and internal forces. Free body diagrams are used to illustrate and calculate forces acting upon a given body. Knowledge and Skills It is expected that students will: Create free body diagrams of objects, identifying all forces acting on the object. Mathematically locate the centroid of structural members. Calculate moment of inertia of structural members. Differentiate between scalar and vector quantities. Identify magnitude, direction, and sense of a vector. Calculate the X and Y components given a vector. Calculate moment forces given a specified axis. Use equations of equilibrium to calculate unknown forces. Use the method of joints strategy to determine forces in the members of a statically determinate truss. (11 Days) Understandings:
Create a detailed pictorial sketch or use 3D modeling software to document the best choice, based upon the design team’s decision matrix. Present a workable solution to the design problem. Unit 2: Materials and Structures (40 days) (14 Days) Understandings: Laws of motion describe the interaction of forces acting on a body. Structural member properties including centroid location, moment of inertia, and modulus of elasticity are important considerations for structure design. Static equilibrium occurs when the sum of all forces acting on a body are equal to zero. Applied forces are vector quantities with a defined magnitude, direction, and sense, and can be broken into vector components. Forces acting at a distance from an axis or point attempt or cause an object to rotate. In a statically determinate truss, translational and rotational equilibrium equations can be used to calculate external and internal forces. Free body diagrams are used to illustrate and calculate forces acting upon a given body. Knowledge and Skills It is expected that students will: Create free body diagrams of objects, identifying all forces acting on the object. Mathematically locate the centroid of structural members. Calculate moment of inertia of structural members. Differentiate between scalar and vector quantities. Identify magnitude, direction, and sense of a vector. Calculate the X and Y components given a vector. Calculate moment forces given a specified axis. Use equations of equilibrium to calculate unknown forces. Use the method of joints strategy to determine forces in the members of a statically determinate truss. (11 Days) Understandings:
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