Doubts regarding Strength of material
hi friends...... i have few doubts regarding strength of material, so please can anyone give me solution for them........
1. why stress decreases from upper yield point to lower yield point in stress-strain curve?
2. when we draw shear force diagram and bending moment diagrams for beams, we usually see that when shear force is zero at that time bending moment is maximum, so my question is,why?
3. what is difference between moment of inertia and polar moment of inertia?
so friends if any one about these, then please reply here...... waiting.........
1. why stress decreases from upper yield point to lower yield point in stress-strain curve?
2. when we draw shear force diagram and bending moment diagrams for beams, we usually see that when shear force is zero at that time bending moment is maximum, so my question is,why?
3. what is difference between moment of inertia and polar moment of inertia?
so friends if any one about these, then please reply here...... waiting.........
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