guidance on this second part. Here is my Matlab code below for the
first module:
%define load
P=[0:1:600];% p=0,1,2,3...600 lb p will take these values
%define other dimensions
c=0.4; G=4000;L=6.32;b=1.8;
%computing displacement using u=Pc/(GLb) inches
u=(P*c)./(G*L*b);
%plotting displacement (u) vs load(P)
figure(1)
plot(u,P,'r--');
%computing shear stress tau=P/Lb
tau=P./(L*b);
%plotting shear stress (tau) vs Load (P)
figure (2)
plot(tau,P,'g--');
%computing shear strain shear=u/c
shear_strain=u./c;
%plotting shear strain vs displacement (u)
figure (3)
plot(shear_strain,u,'m--');
Now I need to find the following: (Should be several test
runs)
Continuing from Module 7 discussion; now adjust your model by
using “W” direction properties and these adjusted dimensions:
thickness 0.40 inch (narrow thickness) and 1.2 inch (wide
thickness), width 1.80 inches and length 6.32 inches. Note the
modified SolidWorks image below; the scalloped section seen on the
right of the honeycomb sample is 0.3-inch diameter and this area
should be removed from both ends of the sample.
- So For Module 7 This Is The Data That I Ran I Need A Little Guidance On This Second Part Here Is My Matlab Code Below 1 (165.09 KiB) Viewed 61 times
- So For Module 7 This Is The Data That I Ran I Need A Little Guidance On This Second Part Here Is My Matlab Code Below 2 (165.09 KiB) Viewed 61 times
The below plot was generated from an actual C273 test (ASTMCompass/ERAU). e of a compression specimen fabricated with the above dimensions. Load versus Extension 560 480 400 [296] Test Run 2 Test Run 3 Test Run 4 Test Run 5 Test Run 6 Test Run 7 Test Run 8 Test Run 9 Test Run 10 Test Run 11 320 Load (lb) 240 160 80 0 80 -0.07 -0.03 0.01 0.05 0.13 0.17 0.21 0.25 0.09 Extension (in) You are to complete the following: 1. Model, analyze, and plot (1st plot) your work from module 7 with the new specimen dimensions and properties. 2. Adjust (transform) your model to accommodate for a test misalignment error noted in the fixture of 3 degrees (eccentric loading state) and correct (2nd plot) your 1st. 3. State, with supporting equation, at what stress will an individual honeycomb cell deform and buckle? 4. Reflect and Think: why do additional test runs of the same specimen produce the observed results as seen in the above plot of