A curved beam with eccentricity 0.02D is loaded with 1kN.Centroidal radius=4D and inner and outer radii are 3.5D and 4.5D respectively. Area of cross section is 0.8D². Find the dimension D if allowable stress is 110N/mm² and considering only direct tensile stress.
(a) 4.7mm
(b) 6.8mm
(c) 13.95mm
(d) 3.4mm
This question requires clarification and I found it in a case study.
My question is from the Fracture Mechanics, Curved beams & Thermal Stresses topic in chapter Design Against Static Load of Machine Design