Find five examples of mature designs. Also, find one mature design that has been recently redesigned. What pressures or new developments led to the change?

how can you promote the protection of our environment and natural resources in the manufacturing industry?

Constraints: A. do not set property limits B. are attributes or properties used to maximize the freedom of choice of a material C. are essential conditions that must be met D. none of the above An objective is: A. what does the component do B. a quantity for which an extreme value (a maximum or minimum) is sought C. a property or a material index D. none of the above 3 Free variables are: A. design parameters that the designer is free to change in order to maximize or minimize the objective B. attributes or properties of the material of which a component is made C. material properties that limit the performance of a component D. none of the above

Show the typical Stress versus Strain curve for the following materials, and define the materials properties "The stress-strain curve can be used to read off the structural load ability of materials. For many materials, including metals, their loading bearing capability is one of the most important material properties". by reference to the diagram: a) Hammer head is made from hardened tool steel b) Smelter is made from refractory ceramic c) Cable is made from pure copper d) Box is made from polypropylene