Re-Arranging Formula for Creep Rupture Time Calculation | Helpful Tips"

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SUMMARY

The discussion focuses on re-arranging the Larson-Miller parameter formula, LM = T (C + log tr), to calculate the creep rupture time (tr) of a material. The constant C is typically around 20, and T represents temperature in Kelvin. Participants emphasize the importance of understanding the inverse of a logarithm to successfully manipulate the equation. The conversation highlights the need for clarity in mathematical operations involving logarithmic functions.

PREREQUISITES
  • Understanding of logarithmic functions and their properties
  • Familiarity with the Larson-Miller parameter in material science
  • Basic knowledge of temperature measurement in Kelvin
  • Ability to manipulate algebraic equations
NEXT STEPS
  • Study the properties of logarithms, including inverse functions
  • Research the application of the Larson-Miller parameter in creep analysis
  • Learn about temperature conversion and its significance in material properties
  • Practice algebraic manipulation of equations involving logarithms
USEFUL FOR

Material scientists, mechanical engineers, and students studying creep behavior in materials will benefit from this discussion.

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Homework Statement


I am trying to re-arrange the following formula so I can work out the creep rupture time of a material, using the Larson-Miller parameter (LM)

Homework Equations


LM = T (C + log tr)

where : C = constant ( usually of the order of 20 )
T = the temperature in Kelvin
tr = rupture time in hours.

The Attempt at a Solution



I am struggling with the re-arrangement of the "log" bit. Any help would be very much apppreciated.
 
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Hi hoola and welcome to PF,

What is the inverse of a logarithm?
 

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