Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

problem.1) A three-point bending test was performed on an aluminium oxide specimen which is having a circular cross section of radius 3.5 mm; the specimen fractured at a load of 950 N when the distance between the support points was 50 mm. Another test is to be performed on a specimen of this similar material, but one that has a square cross section of 12 mm length on each edge. At what load will you expect this specimen to fracture if the support point separation is 40 mm?

problem. 2) A 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 largest surface crack is 2.5 mm. find out 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 MPaand a in m. Assume that the parameter Y is independent of crack length and has a value of 1.0.

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M9768

Have any Question? 


Related Questions in Mechanical Engineering

Applications of piezoelectric sensors are numerous

Applications of piezoelectric sensors are numerous; push-button devices and switches, airbag MEMS sensors in vehicles, pressure and force sensing, robotic tactile sensing, accelerometers, glide testing of computer disk-d ...

Derive an expression for the instantaneous electromagnetic

Derive an expression for the instantaneous electromagnetic torque during a three phase short circuit at the terminals. Assume the stator terminals of the machine are initially open-circuited and the speed does not change ...

For the network of given figurea find the total conductance

For the network of given figure. a. Find the total conductance and resistance. b. Determine I s and the current through each parallel branch. c. Verify that the source current equals the sum of the parallel branch curren ...

The power input to a dc shunt motor during rated-load

The power input to a d c shunt motor during rated-load conditions is 100 W. The rotor speed is 2000 r/min, and the armature voltage is 100 V. The armature resistance is 2 Ω and R f = 200 Ω . Calculate the no-load rotor s ...

Suppose we wish to implement lsh by map reduce specifically

Suppose we wish to implement LSH by Map Reduce. Specifically, assume chunks of the signature matrix consist of columns, and elements are key-value pairs where the key is the column number and the value is the signature i ...

Draw a sketch of the variation of stress versus time and

Draw a sketch of the variation of stress versus time, and compute the maximum stress, minimum stress, mean stress, alternating stress, and stress ratio, R. A strut in a space frame has a rectangular cross section of 10.0 ...

Methane gas at 100 atm and -18c is stored in a 10-m3 tank

Methane gas at 100 atm and -18C is stored in a 10-m3 tank. Determine the mass of methane contained in the tank, in kg, using the (a) ideal gas equation of state. (b) van der Waals equation. (c) Benedict-Webb-Rubin equati ...

A 1-m3 tank holds a two-phase liquid-vapor mixture of

a 1-m^3 tank holds a two-phase liquid-vapor mixture of carbon dioxide at -17C. The quality of the mixture is 70%. For saturated Carbon Dioxide at-17C. vf = .9827x10^-3 M^3/kg and vg = 1.756x10^-2 m^3/kg. Determine the ma ...

A brushless dc motor and a suitable drive unit are to be

A brushless dc motor and a suitable drive unit are to be chosen for a continuous drive application. The load has a moment of inertia 0.016 kg-m 2 and faces a constant resisting torque of 35.0 N-m (excluding the inertia t ...

What processes might be grouped into the nanotechnology

What processes might be grouped into the nanotechnology field? For example, what level of precision is needed in a CD player or an artificial joint?

  • 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

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate