It has been taught that Load and deflection across specimens can vary. But not the stress and strain. True! And that is why while characterizing /testing a material, we express load and deflection in terms of stress and strain for the convenience of comparison and standardization.
BUT what one should realize is that the stress and strain are user dependent parameters in real time tests. You are inputting area A and gauge length GL for stress and strain respectively. Have you thought of the variation in stress or strain, per unit error in the area or length that you are calculating?
BUT what one should realize is that the stress and strain are user dependent parameters in real time tests. You are inputting area A and gauge length GL for stress and strain respectively. Have you thought of the variation in stress or strain, per unit error in the area or length that you are calculating?
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