1a. Write the three-dimensional state of uniform stress in a deformable medium

1b.

. Show from table below that total true stain is equal to the sum of the incremental true strains. Consider a rod of 2 cm long that is elongated in three increments, each has a strain of 0.1.

Which is the most efficient? A parallel hydrogen fuel cell or one connected in series? Can you explain your reasoning to your answer?

Describe the mathematical models of the boundary value problem to evaluate the elastic deflection of the beam based on Euler-Bernoulli and Timoshenko theories with finite difference discretisation (for numerical integration and differentiation)

A 40 wt% Pb–60 wt% Mg alloy is heated to a temperature within the a liquid-phase region. If the mass fraction of each phase is 0.5,

then estimate

(a) the temperature of the alloy

(b) the compositions of the two phases in weight

percent

(c) the compositions of the two phases in atom

percent

A 40 wt% Pb–60 wt% Mg alloy is heated to a temperature within the a liquid-phase region. If the mass fraction of each phase is 0.5,

then estimate

(a) the temperature of the alloy

(b) the compositions of the two phases in weight

percent

(c) the compositions of the two phases in atom

percent

What is the effect of time and temperatuure on the mechanical properties of polymers (in regards to polymer chains)?

To what temperature would you need to heat the carbon steel rivets to ensure the plates developed sufficient compressive force to transmit the load in shear. The force the joint is required to carry is 20,000 lbs. The plates are to be used for retaining walls below the permafrost depth, so their operation temperature will be 52 F. The clamped plates are made of steel and have
clean and dry surfaces. Please show all work

Which of the following is not the charecterstic of Pallet loads placed on racks in multi-rackStructure: Select one: a. Good accessibility b. Low cost c. None of these d. Good stroge density

Consider a 1.5m long 30cm wide flat plate exposed to two laminar flows of air (6 m/s free stream top surface and 12m/s free stream bottom surface) at 25ºC and atmospheric pressure. The top and bottom surfaces of the plate are electrically heated (1.5 kW total power, heaters assumed infinitesimally thin). The plate consists of 3 layers: a top and bottom layer of 1.0 cm balsa wood (k = 0.055 W/(m·K)), and a middle layer of 2.0 cm plywood (k = 0.12 W/(m·K)). Assume all of the following conditions apply: a) the generated surface heat flux on the top and the bottom surfaces of the plate is uniform; b) the heat is transferred by convection on both sides of the plate; c) radiation heat transfer is negligible; and d) heat transfer is one-dimensional through the plate and no heat is transferred along the plate. Assume transition occurs at Rex=30,000 for this plate.

•Calculate and plot the expected top, bottom and center temperatures in °C as a function of distance from the leading edge of the plate.

Research and write a recommendation report that compares two or more things. Address a topic or issue of your major field of study.

An FCC crystal is pulled in tension along the [100] direction. (a) Determine the Schmid factor for all slip systems. (b) Identify the slip system(s) that would be activated first. (c) What is the tensile stress under which this crystal will flow plastically? (τo = 50 MPa)

In a slowly cooled hypereutectoid iron-carbon steel,
the pearlite colonies are normally separated from each
other by a more or less continuous boundary layer of
cementite. Explain how this microstructure develops. Use
simple sketches to illustrate your answer