Every stress-strain curve you get right today is one less guess on the shop floor.
A diploma student asks Sumantrak
“explain the difference between stress and strain”
Stress is the internal resisting force per unit area developed inside a material when an external load is applied (measured in N/mm² or Pa). Strain is the resulting deformation — the ratio of change in length to original length, and it has no units. Viva tip: examiners immediately follow with "what's the relationship between them" — that's Hooke's Law, stress = Young's Modulus × strain, valid only within the elastic limit.
Subjects Sumantrak covers for Mechanical Engineering
Product Design and DevelopmentHeating Ventilation Air ConditioningEmerging Trends in Mechanical EngineeringPower EngineeringAutomobile EngineeringTheory of MachinesMetrology and MeasurementMechanical Engineering MaterialsStrength of MaterialsFluid Mechanics and MachineryThermal EngineeringEngineering Workshop PracticesEngineering GraphicsEngineering Mechanics