Quasistatic loading, Mechanical Engineering

Assignment Help:

• 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.)


Related Discussions:- Quasistatic loading

What do you mean by moulding materials, Q. What do you mean by Moulding mat...

Q. What do you mean by Moulding materials? Various types of materials are used in the foundries for the manufacture of casting moulds and cores. These materials are divided in

How is local shear mode characterized in bearing capacity, How is local she...

How is local shear mode characterized in bearing capacity? Local Shear Failure The local shear mode of failure is characterized by slip zones, small surface heave and a poor

Bending stress, What is bending stress? The bending moment at section t...

What is bending stress? The bending moment at section tends to bend or deflect beam and internal stresses resist its bending. The process of bending stops when the cross sectio

Evaluate elongation of wire, Evaluate Elongation of wire: An aerial c...

Evaluate Elongation of wire: An aerial copper wire ( E =1 x 10 5 N/m m 2 ) 40 m long is having cross sectional area of 80 mm 2 and weighs 0.6 N per meter run. I

Thermodynamics, Show that the entropy maximum principle encountered in the ...

Show that the entropy maximum principle encountered in the study of isolated system is equivalent to the statement that the nonflow exergy of an isolated system is destined to decr

Determine directions of the wave vectors-double refraction, Double Refracti...

Double Refraction An unpolarized plane wave is incident from free space onto a quartz crystal (n e = 1.553 and n o = 1.544) at an angle of incidence 30°. The optic axis lies i

Combined rules- priority rules-conventional priority rules, Combined Rules ...

Combined Rules           MOD (modified operation due date)                                 PN j = max (t + o j , t dj ) (SPT-Tr) (Truncated SPT)

Engineering drawing, in orthographic projection why in quadrant is taken in...

in orthographic projection why in quadrant is taken in anticlock wise

Carnot cycle - thermodynamics, Carnot Cycle - thermodynamics: Carno ...

Carnot Cycle - thermodynamics: Carno t Cycle: Sadi carnot; this is based on second law of thermodynamics introduced the concepts of reversibility and cycle in the year 1824

Scheduling, how to find out hte optimal sequence and determine the minimun ...

how to find out hte optimal sequence and determine the minimun total elapsed time associated with a given problem

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd