This page discusses material fatigue leading to failure from repeated loading, focusing on crack initiation and growth patterns, tools like the S-N curve and Goodman diagram, and the limitations of Mi...This page discusses material fatigue leading to failure from repeated loading, focusing on crack initiation and growth patterns, tools like the S-N curve and Goodman diagram, and the limitations of Miner's Law in estimating cumulative damage. It also introduces Paris law for crack growth rates linked to stress intensity, underscoring the need for safety in engineering.
This page covers the mechanics of torsionally loaded shafts, emphasizing shearing stresses and strains crucial for power transmission in engineering. It explains the relationship between shear stress,...This page covers the mechanics of torsionally loaded shafts, emphasizing shearing stresses and strains crucial for power transmission in engineering. It explains the relationship between shear stress, shear strain, and torque, highlighting the advantages of hollow shafts for efficiency. The text also compares solid and annular shafts, discusses methods for calculating angular displacements, and presents the energy method using Castigliano’s theorem.
