Mica Stress vs Strain e Stress is force applied a loaddoriginal cross sectional hydrated cations. They cannot slip as Tale but cleaved S1a BPA (NrI a Electrical insulating a Cation evosslstance 划 Thermal resi nsile stress stress compressive stress o Strain is a dimensional change due to an applied stres Types of Loading = Strain E(mm/mm) Stress vs. Strain: Units Stress and strain (tension and compression) Stress To compare specimens of different sizes, the load is calculated per unit area. Qu=F/Ao where A, is the original cross sectional area) psi pounds force per square inch) F: is load eMPa (ega Pascals=106 Nm2) Perpendicular to F before application of the load. Strain e=LL(where L, is the original length) Al: change in length unitless-sometimes expressed as a percentage Stress /strain: for tensile loads for compressive loads2 Mica Micas are cation-poor sheet silicate consisting of electrically charged sheets that are being held by intercalated, unhydrated cations. They cannot slip as Talc but can be cleaved. Electrical insulating Chemical resistance Thermal resistance Cation exchangers Stress vs. Strain Stress is force applied over area: load/original cross sectional area tensile stress compressive stress shear stress torsion stress Strain is a dimensional change due to an applied stress stress To describe how materials deform as a function of applied load. we need to discuss testing methods and language for mechanical properties of materials. Stress, s (MPa) Strain, e (mm / mm) Stress, s(MPa) Strain, e (mm / mm) Types of Loading Tensile Compressive Shear Torsion Stress vs. Strain: Units Stress s=F/A0 (where A0 is the original cross-sectional area) psi(pounds force per square inch) MPa (Mega Pascals = 106 N/m2 ) Strain = L/L0 (where L0 is the original length) unitless ¾ sometimes expressed as a percentage Stress and Strain (tension and compression) To compare specimens of different sizes, the load is calculated per unit area. Stress: s = F / A0 F: is load A0 : cross-sectional area Perpendicular to F before application of the load. Strain: e = Dl / l0 (´ 100 %) Dl: change in length l0 : original length. Stress / strain: + for tensile loads － for compressive loads