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

If you were using a full length centerline gage rod to

If you were using a full length, centerline, gage rod to measure DL, how much change would you expect to see at 2508F?  What DL from ‘‘before tightening'' would you expect to see at 2508F if you were using ultrasonics to ...

An air conditioner is a refrigerator with the inside of the

An air conditioner is a refrigerator with the inside of the house acting as the cold reservoir and the outside atmosphere acting as the hot reservoir. Assume that an air conditioner consumes 1.70 X 10 3 W of electrical p ...

1 a slender vertical bar ab with pinned ends and length l

1. A slender vertical bar AB with pinned ends and length L is held between immovable supports. What increase ?T in the temperature of the bar will produce buckling? 2. A W2 × 87 structural steel column has a length of 12 ...

The dc beta rises with collector current due to the sns

The d.c. beta rises with collector current due to the SNS effect and drops due to high injection level in the best. Combine these two effects and obtain the condition at which the beta peaks. Use the simplest formulas de ...

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 ...

The probability of a linear molecule being in a particular

The probability of a linear molecule being in a particular rotational level J depends on the temperature, and for J 7 0 there is a temperature Tmax at which the probability for that level reaches a maximum. Derive an exp ...

Define a shear joint define an axial shear joint define

Define a shear joint? Define an axial shear joint? Define faying surface? Define friction-type joint? Define bearing-type joint? Draw a graph illustrating the way a shear joint fails? Is bolt preload important in a shear ...

At the transition temperature of 954degc the enthalpy of

At the transition temperature of 95.4°C, the enthalpy of transition from rhombic to monoclinic sulfur is 0.38 kJ mol -1 . a. Calculate the entropy of transition under these conditions. b. At its melting point, 119°C, the ...

Problem 1-consider a 5-m-long constantan block k 23 wmk30

Problem 1-Consider a 5-m-long constantan block (k = 23 W/mK) 30 cm high and 50 cm wide. The block is completely submerged in iced water at 0 °C that is well stirred, and the heat transfer coefficient is so high that the ...

Which is greater the tensile strength of a bolt or its

Which is greater, the tensile strength of a bolt or its stripping strength? Why? Where in the bolt would we find the maximum tensile stress? Where in a conventional nut? Define proof strength ? Compute the conventional t ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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