![]() Stress and strength are important parameters for engineers to understand. ![]() ![]() If materials are not strong enough, terrible accidents can happen, such as a floor collapsing because too many people are standing on it! Understanding stress and the strength of materials is very important to keep us safe in our day-to-day lives! Materials must be strong enough to withstand the stress upon them. Stress analysis is important to keep the wheels on your car and bridges standing up. For example, engineers analyze how stress affects the chairs we sit in so that the legs are strong enough to not bend or break. Examples of engineering stress are ongoing everyday, everywhere around you, from chairs to cars to bridges to buildings.Ī man named Robert Hooke described the concept of stress in 1660, and engineers have been using it ever since. (Refer to the associated activity Team Up! for students to discover how collective action can foster a sense of community support, which can alleviate personal feelings of stress and tension.) When engineers talk about stress, they mean how much force an object experiences, and how that force is spread over the object's area. Stress can be what causes your hair to turn gray because you have too much homework or deadlines to meet.
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