ENGR 1166 Chapter Notes - Chapter 1: Shear Stress, Stress (Mechanics)
19 Apr 2017
School
Department
Course
Professor
Document Summary
Static concept - when a body is at rest with no movement o it moves with constant velocity (acceleration is zero) the resultant of all forces is zero (the structure is stable and does not move) Dynamic concept - when a body is at motion under different forces and moment, acceleration is not zero. Analyze the structure and calculate the unknown forces in a stable system (moment - rotational load - distance vector x force vector) We need to have parameter to be compared with strength of material. This parameter should be independent from area of loading. Different types of stress in elements under loading. Normal stress () - stress due to axial load which is normal to the section. Elongation due to tensile force and shortening due to compressive force. Strain - ratio of the total deformation to the initial dimension of the material body,
