If compressive yield stress and tensile yield stress are equivalent, then region of safety from maximum principal stress theory is of which shape?

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The region of safety in maximum shear stress theory contains which of the given shape

asked 1 day ago in Machine Design by Carter (89.5k points)

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Maximum Principal Stress Theory is not good for brittle materials.

asked Jan 23 in Machine Design by Carter (89.5k points)

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If a body is subjected to stresses in xy plane with stresses of 60N/mm² and 80N/mm² acting along x and y axes respectively. Also the shear stress acting is 20N/mm²Find the maximum amount of shear stress to which the body is subjected.

asked Jan 27 in Machine Design by Carter (89.5k points)

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If a body is subjected to stresses in xy plane with stresses of 60N/mm² and 80N/mm² acting along x and y axes respectively. Also the shear stress acting is 10N/mm². Find the inclination of the plane in which shear stress is maximal.

asked 1 day ago in Machine Design by Carter (89.5k points)

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If a body is subjected to stresses in xy plane with stresses of 60N/mm² and 80N/mm² acting along x and y axes respectively. Also the shear stress acting is 20N/mm². Find the minimum normal stress.

asked Jan 25 in Machine Design by Carter (89.5k points)

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If knuckle joint is to fail by crushing failure of pin in fork, then determine the diameter of knuckle pin when 50kN axial tensile force act on rods. Given: Max allowable compressive stress=25N/mm², thickness of each eye of fork=25mm.

asked Jan 22 in Machine Design by Carter (89.5k points)

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According to principal stress theory, which option represents the correct relation between yield strength in shear (YSS) and the yield strength in tension (YST)?

asked Jan 27 in Machine Design by Carter (89.5k points)

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If any cross section is subjected to direct tensile stress and bending stress, then find the dimension of cross section. Given length & breadth are t and 2t respectively. F=25kN acts on the top fibre of the cross section, M=F x t . Also maximum allowable tensile stress =100N/mm².

asked Jan 23 in Machine Design by Carter (89.5k points)

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The total strain energy for a unit cube subjected to three principal stresses is given by?

asked Jan 23 in Machine Design by Carter (89.5k points)

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The normal stress is perpendicular to the area under considerations, while the shear stress acts over the area.

asked Jan 25 in Machine Design by Carter (89.5k points)

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Calculate the diameter of pin from shear consideration with maximum shear stress allowed is 40NN/mm² and an axial tensile force of 50kN is acting on the rod.

asked Jan 23 in Machine Design by Carter (89.5k points)

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A curved beam with eccentricity 0.02D is loaded with 1kN.Centroidal radius=4D and inner and outer radii are 3.5D and 4.5D respectively. Area of cross section is 0.8D². Find the dimension D if allowable stress is 110N/mm² and considering only direct tensile stress.

asked Jan 23 in Machine Design by Carter (89.5k points)

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If for a curved beam of trapezoidal cross section, radius of neutral axis is 89.1816mm and radius of centroidal axis is 100mm, then find the bending stress at inner fibre whose radius is 50mm. Area of cross section of beam is 7200mm² and the beam is loaded with 100kN of load.

asked Jan 25 in Machine Design by Carter (89.5k points)

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The region of safety for biaxial stresses is of which shape in the case of maximum distortion energy theorem.

asked Jan 25 in Machine Design by Carter (89.5k points)

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In cold riveting like hot riveting shank is subjected to majorly tensile stress.

asked Jan 22 in Machine Design by Carter (89.5k points)

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If there are residual stresses in the material, than lower factor of safety is used.

asked Jan 23 in Machine Design by Carter (89.5k points)

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A curved beam with eccentricity 0.02D is loaded with 1kN.Centroidal radius=4D and inner and outer radii are 3.5D and 4.5D respectively. Area of cross section is 0.8D². Find the dimension D if allowable stress is 110N/mm² and considering combined effect of direct stress and bending stress.

asked 1 day ago in Machine Design by Carter (89.5k points)

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A curved beam with eccentricity 0.02D is loaded with 1kN.Centroidal radius=4D and inner and outer radii are 3.5D and 4.5D respectively. Area of cross section is 0.8D². Find the dimension D if allowable stress is 110N/mm².Considering only bending stress.

asked Jan 23 in Machine Design by Carter (89.5k points)

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Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength?

asked Jan 21 in Machine Design by Carter (89.5k points)

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A right angled bell-crank is designed to raise a load of 5kN at short arm whose length is 100mm. Also longer arm is of length 500mm. If permissible bearing pressure on pin is 10N/mm² and diameter of the 20mm, find the shear stress in the pin.

asked Jan 25 in Machine Design by Carter (89.5k points)

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Find the size of the bolt using maximum principal stress theory.

asked 1 day ago in Machine Design by Carter (89.5k points)

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The bending stress in a straight beam varies linearly with the distance from neural axis like that in a curved beam.

asked 1 day ago in Machine Design by Carter (89.5k points)

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A flange of radius 200mm is fastened to the machine screw by means of four cap screws of pitch circle radius 150mm. The external force P is 20kN which is loaded at 160mm from the machine screw. There are two dowel pins to take shear load. Determine the core diameter of cap screw if permissible tensile stress in cap screw is 40N/mm².

asked Jan 23 in Machine Design by Carter (89.5k points)

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Type of load affects factor of safety.

asked Jan 27 in Machine Design by Carter (89.5k points)

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If no re boring allowance is to be given, then thickness of cylinder wall is max pressure is 3.5N/mm², bore diameter=200mm and permissible tensile stress is 40N/mm².

asked Jan 23 in Machine Design by Carter (89.5k points)

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