Solid Mechanics : Stress Notes The concept of stress originated from the study of strength and failure of solids. The stress field is the distribution of internal “tractions” that balance a given set of external tractions and body forces. First, we look at the external traction T that represents the force per unit area acting at a given location … Read more
Stress Intensity Factor Notes Stress Intensity Factor, K, is used in fracture mechanics to more accurately predict the stress state (“stress intensity”) near the tip of a crack caused by a remote load or residual stresses. When this stress state becomes critical a small crack grows (“extends”) and the material fails. The load at which … Read more
Sensitivity Coefficient Formulas Sensitivity coefficient with respect to rate coefficients In flame calculations: where F is a target value. S is computed by the Chemkin code. For non-flame calculations we use two-side finite-difference formula: Sensitivity coefficient with respect to heats of formation In flame calculations: where is computed by the Chemkin code. For non-flame calculations: The following temperatures … Read more