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Engineering Problem 13.14 & 14.25 Review: SLG Glass Temperature & Stress Analysis

Review of engineering problems 13.14 & 14.25 involving soda-lime glass (SLG) temperature and stress analysis. Learn to calculate max-temperature with given conditions using viscosity, tensile stress, and strain relations.

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Engineering Problem 13.14 & 14.25 Review: SLG Glass Temperature & Stress Analysis

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  1. Engineering 45 FinalExamReview Bruce Mayer, PE Licensed Electrical & Mechanical EngineerBMayer@ChabotCollege.edu

  2. P13.14 Advice • The Following Problem is Very SIMILAR to Problem 13.14, but it is NOT the Same • The Numbers were Changed to Protect the Innocent

  3. 1N SLG 100 mm 5 mm 1 N Problem 13.14 SetUp • Problem → • SodaLime Glass (SLG) Loaded as Shown at Right • Find Using Fig 13.7 the Max-Temperature if the allowed extension is 1mm over the course of a week’s time

  4. Use the η – ε – σ Reln • The Viscosity Reln • Where • η ≡ Viscosity • σ ≡ Tensile Stress • ε ≡ Tensile Strain

  5. Use Fig 13.7 490 °C • Thus at η = 3.08x1012 Pa•S: T = 490 °C

  6. P14.25 Advice • The Follow Problem is Very SIMILAR to Problem 14.25, but it is NOT the Same • The Numbers were Changed to Protect the Innocent

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