Thermodynamic Degradation Science

Overview of New Terms, Equations, and Concepts

Key Words

Degradation, aging, thermodynamics, physics of failure, accelerated testing, reliability, thermodynamic work, entropy, entropy damage, free energy, fatigue, conjugate work, fatigue damage spectrum, noise analysis, noise damage, white noise, corrosion, cyclic work, Miner’s Rule, heat engine damage, negative entropy, spontaneous negative entropy, human aging, environmental profiling, transistor aging, thermal cycle, shock and vibration, log time aging, complex systems degradation, acceleration factors, wear, creep, diffusion, aging law influence on reliability distributions, CAST goals.

New Terms, Equations, and Concepts

This book offers a lot of new work. We provide here a list for the reader.

Unique Terms

Entropy damage, entropy damage threshold, spontaneous negative entropy, repair entropy, cumulative accelerated stress test (CAST) equations and goals

Unique Equations

2.2, 2.10, 2.14, 2.23, 2.24, 2.36, 2.42, 2.124, 2.128, 3.21, 3.25, 3.31, 4.15, 4.16, 4.19, 4.22, 4.23, 4.26, 4.29, 4.30, 4.33, 4.47, 5.3, 5.4, 5.6, 5.7, 5.10, 5.11, 6.7, 6.8, 6.15, 7.7, 7.8, 7.15, 7.16, 7.20, 7.24, 7.25, 7.31, 7.36, 7.37, 8.17, 8.18, 8.21, 8.22, 9.15, 9.26, C.7–C.10, C.16–C.20.

Please see also Table 1.5, Table 4.3, Miner’s rule derivations, and acceleration factor equations.

Unique Concepts

Second law phrasings in terms of degradation, four main categories of aging, thermodynamic aging state, thermodynamic reliability, entropy ...