Determine the FPF strength of a [0/90], laminate based on 9.2 under uniaxial tension (a) the...
Please Answer this in full detailed as I am unable to get the full grasp of this topic a) Calculate the modulus of a cross-ply HS-carbon/epoxy laminate. Longitudinal fibre modulus (En)-230 GPa; transverse fibre modulus (E122)-20 GPa; matrix modulus (En)-3 GPa; fibre volume fraction (V) : 60%. [5 marks] b)(1) Explain the difference in failure of a single fibre in air and a single fibre embedded [5 marks] in a matrix. (2) How can a test that involves the fracture...
Human femur bone was subjected to a uniaxial tension test. As a result of a series of experiments, the stress-strain curve shown in Fig. 13.42 was obtained. Based on the graph in Fig. 13.42, determine the following parameters: Elastic modulus, E. Apparent yield strength, sigma _y (use the offset method). Ultimate strength. sigma _u. Strain, epsilon _1, corresponding to yield stress. Strain, epsilon _2, corresponding to ultimate stress. Strain energy when stress is at the proportionality limit.
Step 2: For a copper single crystal under uniaxial tension test along its [111] direction, the yield point is 150 MPa. 고 (1) Which slip system(s) are activated? (2) Calculate the critically resolved shear stress of copper TCRSS; (3) Calculate the yield points if the copper single crystal is tested along [211] or [100] direction.
Q2: A normally consolidated clay sample is tested under uniaxial (unconfined) compession. Unconfined compressive strength was found as qu=1.80 kg/cm². It is known from previous drained triaxial tests that, '=30°. A) What would be the pore pressure at failure durin unconfined testing?, B) Without changing water content, if you carry out an unconsolidated-undrained triaxial test on the same sample, calculate maximum principle stres values for 0;= 3 kg/cm², 03= 3.5 kg/cm², 0;= 4 kg/cm².
7.21 Two samples were cut from a [0/90], laminate, one along the 0° direction and the other at 45° The measured properties from the first sample were E 80 GPa (11.6 Msi) and Vy1. The second sample gave strains e, - -g, 5 x 103 under a uni- axial loading of 120 MPa (17.4 ksi). Determine the lamina moduli E, and G12 assuming ET> E2
Any help is appreciated, will thumbs up! Thanks! (a) Assume that the axial failure stress (sy) for cortical bone is 120 MPa and -180 MPa, under uniaxial tension and compression, respectively. Determine if failure has occurred for any of the following cases (without worrying about the maximum shear stress) (0) -80MPa -150MPa -20 MPa - 80 MPa → 110MPa → 10MPa (b) Assume that the failure stress (sy) is 200 MPa under any axial loading. Determine if failure has occurred...
1. (5 pts) If a steel bar subjected to uniaxial tension enters into t the plasticity region of the stress-strain curve, which of the following statement is ALWAYS true? (select all that apply) a. Stress in the bar has exceeded yielding strength: b. Stress in the bar has exceeded proportional limit; c. The total strain can d. The plastic strain can be fully recovered if tensile load is fully released; be fully recovered if tensile load is fully rel released;...
3. A [0/90]s graphite/epoxy laminate is subjected to a tensile normal load of 1N/m in the x- direction (the direction parallel to the fibers in the 0° ply). Assume the thickness of each ply is 5 mm and use properties of unidirectional graphite/epoxy lamina from the table. a) Calculate the resultant strains of the laminate b) Calculate the global stresses in the laminate c) Calculate the principal stresses (stresses in material directions) of the top layer. Typical Mechanical Properties of...
air under a pressure to 16 MPa. The tank has a 180 mm inner diameter and a 12 mm wall thickness (40 points) A torque of magnitude T-24kN-m is applied to the end of a tank containing 3. Part A. For a point on the outer surface of the tank, determine: a. the maximum normal stress b. the maximum shearing stress Part B. As a result of several tensile tests, it has been found that the tensile yield strength for...
Question No. 01 The state plane of stress at a point is shown below; a) Determine the in-plane principal stresses and orientation of the associated planes. Show the planes on a sketch b) Determine the maximum shear stress and absolute maximum shear stress. c) Determine the strain energy density associated with volume change if E 30,000 ksi and v 0.3 d) Check if yielding will occur using von Mises criterion and Tresca's theory. The yield strength of the material in...