Quasistatic loading, Mechanical Engineering

• For the ASTM dogbone specimens, the ¾ inch hole specimens, and the notched specimen tabulate the failure load, in pounds.

• Show plots of stress and strain for all specimens with strain gages according to the following:

For each ASTM dogbone specimen, make two plots:

 A plot showing axial stress on the y axis and axial strain on the x-axis.

A plot with transverse strain plotted on the y-axis, and the axial strain plotted on the x-axis. (This curve will be helpful for calculating the Poisson's ratio.)

For each stress concentration specimen plot axial stress versus strain (both gages) on a single set of axes.

For the 4-inch wide stress concentration specimen, plot the stress distribution across the line containing the strain gages for several values of applied load based on strain gage readings.

Observe the following for these plots:

To make a clean plot, remove any data following failure of the gages (due to shorting, debonding, or saturation). However, include valid nonlinear portions of all stress strain curves in the plots, if observed.

Remove extraneous data from the beginning of the test pertaining to the time between when DAQ was turned on and the actual beginning of loading.

Use error bars in at least one dogbone plot

For all dogbone specimen plots, the stress should be computed from the measured load divided by an appropriate cross-sectional area.

For the hole specimens use the define axial stress in the plots as the nominal stress (force divided by the minimum cross-section area across the hole). (This will allow direct determination of stress concentration factors.)

Posted Date: 4/1/2013 6:18:13 AM | Location : United States







Related Discussions:- Quasistatic loading, Assignment Help, Ask Question on Quasistatic loading, Get Answer, Expert's Help, Quasistatic loading Discussions

Write discussion on Quasistatic loading
Your posts are moderated
Related Questions
Q. Explain about wire-frame model? A wire-frame model of an object is the simplest, but more verbose, geometric model that can be used to represent it mathematically in the com

derivation of elongation of bar due to its self weight

A smooth sphere of radius 15 cm and weight 2 N is supported in contact with a smooth vertical wall by a string whose length simlar the radius of sphere. The string joins a point on

diameter = 100mm length = 470mm power = 4000 w radians = 78 shear modulus 60000 n/mm^2 determin the maximum shear stress and angle of twist

Vented Causeway: Vented causeways are structures provided with vents (usually pipes) to take care of dry weather perennial flows and which allow water to overflow the paved b

need help with reports on thin thick and combined cylinder theory

Five kilograms of continuous boron fibers are introduced in a unidirectional orientation into 8 kg of an aluminum matrix. Calculate a.  the density of the composite b.

what is the reason that rails are made in I-section form and not in the form of rectangular section.

Determine the moment of forces: The side of a square ABCD is 1.60 m long .Four forces equal to 6, 5, 4 and 8 N acts respectively along with the line CB, BA, DA, DB. Determine

Q.   Explain the terms centre of gravity and centroid. Sol. : A point can be found out in a body through which resultant of all such parallel forces acts. This point through