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المعادلة اريا Question 2 (3 & 3 Marks) A-write Generalized Hook's law for anisotropic material. B-Draw...
1. Stress-Strain Diagrams (10 points) Draw and label a Stress-Strain diagram for two materials with the following properties. (B) is brittle and has a Young's Modulus that is twice as large as (A). The elastic limit, yield point and rupture occur almost simultaneously for (B). (A) is a ductile material that undergoes plastic deformation prior to rupture. The toughness of (A) is approximately 4x as large as (B). You do not need to label any points on the curves other...
Question 3 1) write three types of concrete and steel-grades 2) write three advantages for concrete 3) write three advantages for steel 4) Draw stress-strain diagram for concrete 5) Draw stress-strain diagram for steel
1. Define normal stress (σ), give units and formulae where appropriate. 2. Define, with the aid of a diagram, the terms Shear Stress (r) and Shear Strain (y), giving their units and any relevant formulae. 3. Explain what bearing stress (ơbearin.) is and why it is important in mechanical design? Give 4. Define strain (E), give units and formulae where appropriate 5. Explain Hooke's Law and why it is important in mechanical design? Give units and formulae 6. Define Poisson's...
Q11. 6 points
Please Compare thermoplastic and thermosetting polymers (a) on
the basis of mechanical
characteristics upon heating and (b) according to possible
molecular structures. (c) what
type of polymer material, thermosetting or thermoplastic, you
might select for the
following applications: a surgeon’s glove, a beverage
container, and a pulley.
Q12. 3 points
How do the glass-transition temperatures of polyethylene,
polypropylene, and
polymethyl methacrylate compare? Explain their differences,
based on the structure of
the monomer of each.
Q14. 4 points...
Question 1 The 3-dimensional state of strain at a material point in x, y, z coordinates is given by: Calculate the volumetric strain and the deviatoric strain invariants a. b. Calculate the mean stress and the deviatoric stress tensor. Calculate the characteristic equation of strain. Calculate the characteristic equation of stress. c. d. The material is linear elastic (E-210GPa, v-0.3) (18 marks)
Question 1 The 3-dimensional state of strain at a material point in x, y, z coordinates is given...
Question 1. Statically Determinate Frames (15 Marks) For the fame below: (3 marks) a) Find reactions, vertical and horizontal b) Draw Shear Force Diagram SFD, showing all significant values (5 marks) c) Draw Bending Moment Diagram BMD, showing all significant values (5 marks) (2 marks) d) Sketch deflected shape 4 kN/m 100kN 3 3 10m
Information P Flag question Use the stress-strain diagram below to answer questions 10-12. A B a E Question 10 Not yet answered Points out of 3.00 P Flag question Which material is more brittle? Select one: O a. A O b. B Question 11 Not yet answered Points out of 3.00 P Flag question Which material is stronger? Select one: O a. A O b. B Question 12 Not yet answered Points out of 3.00 P Flag question Which material...
Question One a) With the aid of appropriate sketches, explain how the following factors influence material creep behaviour i. ii. iii. iv. Exposure time Applied mechanical load. Exposure temperature and Material mechanical properties, [4 marks] b) In a typical creep test, load level (typically below material yield strength) and temperature are kept constant while specimen deformation is monitored with time. From the deformations, strains are computed and plotted as a function of time. Three (3) stages may typically be observed....
please draw and solve show every thing details “”
Question 3 128 Marks 2 rectangular beam shown in the figure is subjected to a fluctuating axial force. It fluctuates between 5 kN and 15 kN keeping its direction. The beam is to be machined to the dimensions shown in the figure with a transvers hole of diameter d-14 mm/ Material of the beam is AISI 1040 CD steel (S-590 stress concentration factor as 2.2. K Pa, Sy 490 MPa). Take...
Question 3 (a) Name the following molecule: H3C CH [Marks: 1] (b) If the all stereo centres are the R form; draw the Newman projection of the 3-4 bond of the molecule in part (a). Using those projections sketch a rotational energy diagram for the conformers of the 3-4 bond. Assume that the highest steric/torsional strain is between the hydroxyl and vinyl groups [Marks: 3] () Show the mechanism for the reaction of a strong base with the molecule from...