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A 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 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 AnswerIn the structure shown in the figure, bars AB and BC are made of identical material and have circular cross-sections of 10 mm radii. The yield stress of the material under uniaxial tension is 280 MPa. Using the von Mises yield criterion, the maximum load along the z- direction (perpendicular to the plane of paper) that can be applied at C, such that AB does not yield is _____ N (round off to the nearest integer).0 AnswerAt a critical point in a component, the state of stress is given as 100MPa xx , 220MPa yy , 80MPa xy yx and all other stress components are zero. The yield strength of the material is 468 MPa. The factor of safety on the basis of maximum shear stress theory is ______ (round off to one decimal place).0 AnswerA circular steel bar of diameter 10 mm is bent into the shape as shown in figure, and lies in x-z plane. A horizontal force P is applied along the positive z-direction as shown. The yield strength of the steel is 200 MPa. Neglecting the effect of transverse shear, the load P (in Newton) required to initiate yielding as per maximum shear stress theory of failure is............[up to two decimal places]0 AnswerA circular steel bar of diameter 10 mm is bent into the shape as shown in figure and lies x z plane A horizontal force P applied along positive direction The yield strength 200 MPa Neglecting effect transverse shear load Newton required to initiate yielding per maximum stress theory failure is : up two decimal places..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 AnswerIn the engineering stress-strain curve for mild steel, the Ultimate Tensile Strength (UTS) refers to1 AnswerIn stress strain curve of mild steel Ultimate Tensile Stress is1 AnswerA body starts yielding when it is subjected to a stress state with principal stresses of 250 MPa, 50 MPa and −50 MPa. What is the yield strength of the material, in MPa, if Tresca yield criterion is obeyed? (-Gate metallurgical engineering 2014)1 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 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 AnswerThe state of stress at a point in a component is represented by a Mohr’s circle of radius 100 MPa centered at 200 MPa on the normal stress axis. On a plane passing through the same point, the normal stress is 260 MPa. The magnitude of the shear stress on the same plane at the same point is ______ MPa.0 AnswerIn a linearly hardening plastic material, the true stress beyond initial yielding (gate 2018 Mechanical engineering)0 AnswerConsider a linear elastic rectangular thin sheet of metal, subjected to uniform uniaxial tensile stress of 100 MPa along the length direction. Assume plane stress conditions in the plane normal to the thickness. The Young’s modulus E = 200 MPa and Poisson’s ratio ν = 0.3 are given. The principal strains in the plane of the sheet are0 Answer(Gate 2018 Mechanical engineering) The state of stress at a point, for a body in plane stress, is shown in the figure below. If the minimum principal stress is 10 kPa, then the normal stress y (in kPa) is 0 AnswerWhich one of following is NOT correct? (Gate mechanical engineering 2014)1 AnswerA composite circular shaft is comprised of a steel core surrounded by an aluminum annulus, perfectly bonded to each other as shown in the fi gure. If it subjected to a pure torque, which one of the following statements is TRUE? GATE-1 AnswerMatch the following:0 AnswerShear strength of rock joint is NOT dependent on0 Answer
CE2257 STRENGTH OF MATERIALS LABORATORYCE2201 MECHANICS OF SOLIDSVTU SYLLABUS 2010 STRENGTH OF MATERIALS (COMMON TO CV/TR/EV/CTM) [10CV33] Engineering.CE2252 STRENGTH OF MATERIALS10me34 Mechanics of materialsCE 2035 ROCK ENGINEERINGCE2049 SMART STRUCTURES AND SMART MATERIALS | ANNA UNIVERSITY BE CIVIL ENGINEERING 8th SEMESTER SYLLABUS 2008 REGULATIONCE 2404 PRESTRESSED CONCRETE STRUCTURECE2251 SOIL MECHANICS10CV43