Material Science

1).Does more grain boundaries result in a higher ultimate tensile strength?

2).Does an increase in stiffness of a material result in a higher modulus?

  1. 👍 0
  2. 👎 0
  3. 👁 105

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics: energy

    The spiral shaft in a grain auger raises grain from a farmers truck into a storage bin. Assume that the auger does 6.2 x 10*5 J of work on a certain amount of grain to raise it 4.2 m from the truck to the top of the bin.What is

  2. physics

    A farmer is building a grain mill. The grain is poured inside the mill from the top, and the farmer rotates the handle to grind the grain that goes through the mill. In 1–2 sentences, explain how she can improve the design of

  3. science

    At which type of plate boundary do tectonic plates slide past each other? at oceanic-oceanic boundaries at divergent boundaries at convergent boundaries at conservative plate boundaries

  4. Stress & Strain (Help Please)

    A tie bar is made of a material having a tensile strength of 231 MPa and has to carry a load of 255 kN. What id the diameter of the bar if a factor of safety of 7 is applied? ANS = 99.2 mm Cannot figure out how to get the answer.

  1. Physics

    The Ultimate strength of a round steel rod is 630.000MPa. If a factor of safety of 5.000 is required, what is the maximum permissible load for the rod if it has a diameter of 3.000cm? ANS = kN (Round to 3 decimal places) Safety =

  2. solid mechanics 1

    a load p is supported by a steel pin that has been inserted in a short wooden member hanging from the ceiling. the ultimate strength of the wood used is 60 MPa in tension and 7.5 MPa in shear, while the ultimate strength of the

  3. physics

    please check this: Which sentence best describes electrical conductors? a. electrical conductors have low mass density b. electrical conductors have high tensile strength c. electrical conductors have electric charges that move


    A car burning lead-free fuel has a catalytic converter fitted to its exhaust. On analysis its exhaust gases are shown to contain small quantities of nitrogen oxides. Which modifications would result in lower exhaust concentrations

  1. Physics

    What is tensile strength?

  2. physics

    A strip of rubber originally 75 mm long is stretched until it is 100 mm long. a.What is the tensile strain b.Why has the answer no units? c.The greatest tensile stress which steel of a particular sort of a particular sort can

  3. Physics (Stress & Strain)

    What is the factor of safety for a steel hanger having an ultimate strength of 70000N per cm^2 and supporting a load of 87500N. The hanger has a cross sectional area of 5cm^2. Factor of safety = ultimate stress/ allowable stress =

  4. Dynamics

    A linear spring of stiffness k is designed to stop the 20-Mg railroad car traveling at 8 km/h within 400mm after impact. Find the smallest value of k that will produce the desired result.

You can view more similar questions or ask a new question.