A UTS with a machine stiffness of 75 KN/mm is used to measure load/displacement points in the elastic range of a material. The initial length of the specimen is 102 mm The area of the specimen is 0.00004 m sq The measured deflection and load of a point are: 0.1 mm and 2000 N Estimate the strain on the specimen when loaded

A material has a linear elastic perfectly plastic stress-strain.  A cylindrical specimen of that material having an initial length of 35 mm and a tadius of 7 mm is pulled until it elongates 0.8mm. a.  Calculate the stain and the corresponding stress at that elongation value. b.  Afterward, the specimen is released to zero stress level, how does the final length of the specimen compare with its original length?  How much plastic deformation remains if it exists?

A cylindrical specimen of a nickel alloy having an elastic modulus of 207 GPa and an original diameter of 10.2 mm experiences only elastic deformation when a tensile load of 8900 N is applied. Compute the maximum length of the specimen in mm before deformation if the maximum allowable elongation is 0.45 mm.

Experiments were conducted in a tension testing machine to evaluate the material properties of two metallic rods both having diameter equal to 10 mm. First rod having modulus of rigidity of the material equal to 400 tonnes/cm2 when subjected to an axial tensile force of 6 kN, the change in its diameter was observed to be 0.0018 cm. The value for the bulk modulus of the second metallic rod is same as that of the first one but modulus of elasticity 18% more. Based on the material properties calculate and compare the values of different moduli as well as Poisson’s ratio for both metallic rods. Justify your answer with reasons.

A tensile test is conducted on a mild steel bar. The following data was obtained from the test : diameter of the steel bar= 3cm, Gauge Length of the bar = 20cm, Load at Elastic limit= 250kN, Extension at a load of 150kN= 0.21 mm, Maximum Load = 380kN, Total Extension= 60mm, Diameter of the rod at failure=2.25cm, determine young's modulus?

A cylindrical aluminum alloy 10 mm in diameter and 70 mm long is pulled in tension with a force of 8,000N. If it is known that this alloy has a Poisson’s ratio of 0.33 and a longitudinal strain (ɛz) of 0.003, compute:a) specimen elongationb) the reduction in specimen diameter

A cylindrical specimen of some metal alloy 9.0 mm (0.3543 in.) in diameter is stressed elastically in tension. A force of 15500 N (3485 lbf) produces a reduction in specimen diameter of 6 × 10-3 mm (2.362 × 10-4 in.). Compute Poisson's ratio for this material if its elastic modulus is 100 GPa (14.5 × 106 psi).

Stress Strain-Behavior  A specimen of aluminum having a rectangular cross section 10 mm × 12.7 mm(0.4 in.× 0.5 in. ) is pulled in tension with 35,500 N (8000 lbf) force, producing onlyelastic deformation. Calculate the resulting strain.

A Copper specimen of circular cross-section is subjected to a tensile test. The data obtainedare:Length of Specimen = 329 mm;Diameter of Specimen = 39 mm;Load at Yield Point = 130 kN;Maximum Load = 219 kN;Load at fracture = 118kNDetermine the following:1) Find initial area of the test specimen2) Yield Stress3) Ultimate Stress4) Fracture stress5) Find the strain for 0.058mm elongation.6) Mark Yield stress, Ultimate stress and Fracture stress on a Stress-Strain diagram.

A cylindrical specimen of a titanium alloy having an elastic modulus of 207gpa and an original diameter 3.8mm will experience only am elastic deformation when a tensile load of 2000pa is applied. Compute the maximum length of the specimen before deformation if the maximum allowable elongation is 0.47mm