ing strain of a mild steel sample is recorded as 0.100%, determine true strain.
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Engineering strain of a mild steel sample is recorded as 0.100%, determine true strain.
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- When an aluminum tensile sample with an initial diameter of 12.827 mm was tested, a maximum load of 66.72 kN was recorded at an engineering strain of 0.4 . What is the load on an identical tensile sample with an engineering strain of 0.2 ?Draw a typical stress vs strain tensile test curve for the following material and label the axis. A typical brittle material subjected to a tensile stress that has been applied to the material till the sample breaks. 1- label the axis and draw the curve for a brittle material. 2- indicate the maximum strength of the material. 3- show on the portion of the curve where young's modulus can be calculated.Describe the relationship between stress and strain according to Hook's law?
- "The maximum principal stress yield criterion is an appropriate choice for ductile materials but the maximum principal strain criterion is preferable". Is this true or false?Write the definitions for engineering stress, true stress,engineering strain, and true strain for loading along a singleaxis.A tensile specimen is elongated to twice its original length. Determine the engineering strain and true strain for this test? If the values are different explanations why they are different?
- Between 1. Nominal (engineering) stress and true stress and 2. True strain and engineering strain which is always less than the other?a) Compression tests are generally performed on brittle materials-why?b) How a cast iron specimen fails under compression load?c) Define secant modulus?A metal sample on a tension in the test, , a tensile true strain 0.08, and true stress when the strain is 0.27. Determine the strength coefficient and strain hardening exponent in the flow curve equation.
- Was there a discrepancy between the values of Young's Modulus found in the tensile test and the bending test? If so, why does this occur?A tensile test is performed on metal specimen and it found that a true plastic strain of 0.02 is produced true stress of 345 MPa is applied. How much will a specimen of this material elongate when a true stress MPa is applied if the original length is 500 mm. Assume that the value of 0.22 for strain hardening exponent.Differentiate between normal strain measures and sheer strain measures?