What is Thermal Stress? - Definition & Equation


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What is the temperature needed to expand a steel structural beam, where alpha = 11.1 x 10-6 / K from 20o C, so that it changes its length from 1.0000 m to 1.0002 m?

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1. What is the final length of a steel rod, where alpha = 12 x 10-6 / K, if the initial steel rod's length is 80 cm and temperature changes from 20o C to 50o C?

2. What is the force reaction due to thermal expansion of a steal beam, where alpha =11 x10-6 / K and E = 200 GPa, of a 5.2 cm2 area and 1.20 m length when the temperature changes by 20 K?

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About This Quiz & Worksheet

Easily measure your knowledge of thermal stress analysis with this quiz and worksheet. This convenient multiple-choice quiz includes five questions that require calculations.

Quiz & Worksheet Goals

You'll be asked to determine the:

  • Temperature for expansion of a steel structural beam
  • Final length of a steel rod given initial length and temperature data
  • Force reaction caused by thermal expansion of a steal beam given temperature data
  • Thermal stress of a beam based on an increase in temperature

Skills Practiced

  • Knowledge application - use your knowledge to answer questions about thermal stress analysis
  • Interpreting information - verify that you can read information about the temperature for expansion of a steel structural beam and interpret it correctly
  • Problem solving - use acquired knowledge to solve thermal stress practice problems

Additional Learning

Learn more about this topic with the lesson titled What is Thermal Stress? - Definition & Equation. Here's a quick glance at topics in the lesson:

  • A review of what thermal stress is
  • Examples of free and restricted motion
  • Sample formulas
Final Exam
Introduction to Engineering
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Chapter Exam