Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

problem 1: The three-point bending test was performed on an aluminum oxide specimen having a circular cross section of radius 3.5 mm; the specimen fractured at the load of 950 N when the distance between the support points was 50 mm. The other test is to be performed on a specimen of this same material, however one that has a square cross section of 12 mm length on each edge. At what load would you expect this specimen to fracture if the support point separation is 40 mm?

problem 2: The relatively large sheet of steel is to be exposed to cyclic tensile stresses of magnitudes 200 MPa and 50 MPa, respectively. Prior to testing, it has been determined that the length of the biggest surface crack is 2.5 mm. Estimate the fatigue life of this sheet if its plane strain fracture toughness is 30 MPa(m0.5) and the values of m and A are 3.0 and 10-12, respectively, for Δσin MPa and a in m. Suppose that the parameter Y is independent of the crack length and has a value of 1.0.

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M9550

Have any Question? 


Related Questions in Mechanical Engineering

Assignmentfor this homework you will be creating scripts in

ASSIGNMENT For this homework you will be creating scripts in SciLab. You will turn in electronically, each of the scripts requested below. This is not a group project, so do your own work. Contact me if you have any ques ...

The solution to problem isshow that bernoullis equation

The solution to Problem is Show that Bernoulli's equation applied between sections 1 and 2 does not give this result. Derive all expressions for the change in total head across a hydraulic jump. Problem:- As can often be ...

Why do we often want to create the correct preload in the

Why do we often want to create the correct preload in the bolts when we assemble a joint? Under what conditions is correct preload relatively unimportant? Name at least three factors that can increase the stress in previ ...

Example how an p-channel flash eprom would work is the

Example how an p-channel flash EPROM would work. Is the p-channel worse or better than the n-channel asides form speed? Estimate the write and erase times (using the Fowler-Nordheim tunneling formulae for a triangular ba ...

What is the difference between initial and residual preload

What is the difference between initial and residual preload? Typically, what percentage of the work we do with a torque wrench ends up as preload in an individual bolt? Is the preload mentioned above initial or residual ...

A cable with a length h a cross-sectional area a and

A cable with a length H, a cross-sectional area A, and modulus E is attached to the end of a cantilever beam with length L, second moment of area I, and modulus E (same modulus as the cable). The beam is loaded with a fo ...

1 why are micropower plants so different from larger ones

1. Why are micropower plants so different from larger ones? In what cases are they recommended? 2. Discuss which of the conventional alternative sources of energy is more suitable for use with induction generators to pro ...

Calculate the fraction of n2 molecules in a sample at 298 k

Calculate the fraction of N2 molecules in a sample at 298 K that have speeds less than 10.0ms -1 by integrating the Maxwell-Boltzmann distribution over the appropriate range of speeds (just writing the correct integral i ...

You need help with these 3 problems to be answered

You need help with these 3 problems to be answered correctly and with an explinations and steps.There are two pictures with three questions, please look and understand them before contacting me as well. 1. An alloy at 10 ...

1 explain the read write erase operations of the fmosc

1. Explain the read, write, erase operations of the FMOSC memory cell shown in Fig. 674.4(b). Fig. 674.4 2. Is an initial charge up operation of the FMOSC memory cells necessary immediately after the d.c. power turned on ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen