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A rod of length 20mm is stretched to make a rod of length 40 mm. Subsequently, it is compressed to make a rod of final length 10 mm. Consider the longitudinal tensile strain as positive and compressive strain as negative. The total true longitudinal strain in the rod is _______1 AnswerA bar is compressed to half of its original length. The magnitude of true strain produced in the deformed bar is (Gate 2018 Mechanical engineering)1 AnswerA tensile specimen was deformed to a true strain of 0.405. The change in the gauge length was 5 mm. The final gauge length of the specimen, in mm, is: (-Gate metallurgical engineering 2014)1 AnswerFor a given loading on a rectangular plain concrete beam with an overall depth of 500 mm, the compressive strain and tensile strain developed at the extreme fibers are of the same magnitude of 2.5×10-4 . The curvature in the beam cross-section (in m1 , round off to 3 decimal places), is __________0 AnswerThe true stress (σ) - true strain ( ) diagram of a strain hardening material is shown in figure. First, there is loading up to point A, i.e., up to stress of 500 MPa and strain of 0.5. (Gate 2018 Mechanical engineering)0 AnswerThe length of a bar is L meters. If extends by 2 mm when a tensile force F is applied. Find the strain produced in the bar1 AnswerA bimetallic cylindrical bar of cross sectional area 1 m2 is made by bonding Steel and Aluminium as shown in the figure. To maintain tensile axial strain of magnitude 6 10 in Steel bar and compressive axial strain of magnitude 6 10 in Aluminum bar, the magnitude of the required force P (in kN) along the indicated direction is (Gate 2018 Mechanical engineering)0 AnswerAn element is subjected to biaxial normal tensile strains of 0.0030 and 0.0020. The normal strain in the plane of maximum shear strain is0 AnswerConsider the singly reinforced beam shown in the figure below:At cross-section XX, which of the following statements is TRUE at the limit state? - gate civil 2017 1 AnswerThe value of true strain produced in compressing a cylinder to half its original length is Gate-20161 AnswerA cylindrical rod of diameter 10 mm and length 1.0 m is fixed at one end. The other end is twisted by an angle of 10° by applying a torque. If the maximum shear strain in the rod is 3 p 10 , then p is equal to ______ (round off to two decimal places).0 AnswerA plane-strain compression (forging) of a block is shown in the figure. The strain in the z-direction is zero. The yield strength (Sy) in uniaxial tension/compression of the material of the block is 300 MPa and it follows the Tresca (maximum shear stress) criterion. Assume that the entire block has started yielding. At a point where 40 MPa (compressive) and 0, x xy the stress component y is0 AnswerIf a line is inclined to Vertical Plane and parallel to Horizontal Plane, then which of the following statements is always correct ?0 AnswerIn a linearly hardening plastic material, the true stress beyond initial yielding (gate 2018 Mechanical engineering)0 AnswerConsider the stress-strain curve for an ideal elastic-plastic strain hardening metal as shown in the figure. The metal was loaded in uniaxial tension starting from O. Upon loading, the stress-strain curve passes through initial yield point at P, and then strain hardens to point Q, where the loading was stopped. From point Q, the specimen was unloaded to point R, where the stress is zero. If the same specimen is reloaded in tension from point R, the value of stress at which the material yields again is _________ MPa.0 AnswerWithin classic limit, the ratio of lateral strain to the linear strain is known as0 AnswerThe uniaxial stress-strain behavior of a rock sample is shown in the figure. The elastic modulus E is 20,000 MPa. If p is the plastic strain, the value of the damage parameter D (rounded off to two decimal place) is _________.0 AnswerA survey line was measured to be 285.5 m with a tape having a nominal length of 30 m. On checking, the true length of the tape was found to be 0.05 m too short. If the line lay on a slope of 1 in 10, the reduced length (horizontal length) of the line for plotting of survey work would be0 AnswerIn a UTM experiment, a sample of length 100 mm, was loaded in tension until failure. The failure load was 40 kN. The displacement, measured using the cross-head motion, at failure, was 15 mm. The compliance of the UTM is constant and is given by 5 × 10−8 m/N. The strain at failure in the sample is _______%.0 AnswerA continuous and aligned carbon-fiber composite consists of 25 vol. % of fibers in an epoxy matrix. The Young’s modulus of fiber and matrix, respectively are Ef = 250 GPa and Em = 2.5 GPa. If the composite is subjected to longitudinal loading (iso-strain condition and assuming elastic response), the fraction of load borne by the reinforcement is ________ (to two decimal places) . Gate-2018-General-Aptitude0 Answer
CE2257 STRENGTH OF MATERIALS LABORATORYVTU SYLLABUS 2010 STRENGTH OF MATERIALS (COMMON TO CV/TR/EV/CTM) [10CV33] Engineering.10me34 Mechanics of materialsCE2252 STRENGTH OF MATERIALSCE2049 SMART STRUCTURES AND SMART MATERIALS | ANNA UNIVERSITY BE CIVIL ENGINEERING 8th SEMESTER SYLLABUS 2008 REGULATION10CV43CE 2035 ROCK ENGINEERINGCE2201 MECHANICS OF SOLIDSGE2115-Computer practice Laboratory Part-5CE 2404 PRESTRESSED CONCRETE STRUCTURE