Tensile Properties of Aluminum using Lloyds Testing Machine

Experiment 1 Prepared by: Mukesh Bhardwaj Tensile Properties of Aluminum using Lloyds Testing Machine Nomenclature A Instantaneous area (m2) A0 Original area of cross-section at gauge length (m2) Af Area in the neck region after failure (m2) E Young s modulus of elasticity (Kg/m2, Pa) e Engineering strain e0 Yield strain ef Strain at failure True strain 0 Strain hardening prior to test K Strength coefficient (Kg/m2, Pa) L Instantaneous gauge length (m) L0 Original gauge length, the portion of sample with minimum diameter (m) Lf Gauge length of the failed sample (m) n Strain hardening coefficient P Instantaneous load (Kg) Pmax Maximum load before failure of specimen (Kg) s Engineering stress (Kg/m2, Pa) s0 Yield stress (Kg/m2, Pa) su Ultimate Tensile strength (Kg/m2, Pa) True stress (Kg/m2, Pa) t time (s) UR Resilience (J/m3) UT Toughness (J/m3) Objective Characterization of cylindrical shaped Aluminum sample for Tensile Properties using engineering strain rate controlled Testing .

Experiment 2 Prepared by: Gadadhar Sahoo To Study Upper and Lower Yield Points in Mild Steel using Universal Testing Machine Objective: Characterization of mechanical properties of the mild steel and noting the upper and lower yield points in the flow curve.

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  Using, Properties, Aluminum, Lloyd, Tensile, Tensile properties of aluminum using lloyds

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