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# ME 3255 Final Project | ||
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## Part A | ||
Central finite difference approximation for gradient of 3x3 interior nodes of w. | ||
```matlab | ||
[w] = membrane_solution3(T,P); | ||
``` | ||
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## Part B | ||
T = 0.006 uN/um | ||
P = 0.001 MPa | ||
```matlab | ||
[w] = membrane_solution3(0.006,0.001); | ||
``` | ||
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## Part C | ||
General central finite difference approximation for gradient | ||
of nxn interior nodes of w. | ||
```matlab | ||
[w] = membrane_solution(T,P,n) | ||
``` | ||
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## Part D | ||
- T = 0.006 uN/um | ||
- P = 0.001 MPa | ||
- n = 10 nodes | ||
```matlab | ||
[w] = membrane_solution(0.006,0.001,10) | ||
``` | ||
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## Part E | ||
Function that calculates the difference in the strain energy and the work done by pressure for n-by-n elements. | ||
```matlab | ||
[pw_se,w] = SE_diff(T,P,n) | ||
``` | ||
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## Part F | ||
Root-finding Method used to find tension in the Membrane, given: | ||
- P = 0.001 MPa | ||
- n = [20:5:40] | ||
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Error | ||
|number of nodes | Tension (uN/um) | rel. error| | ||
|---|---|---| | ||
|3 |0.059 |n/a| | ||
|20|0.0618|4.5%| | ||
|25|0.0616|0.3%| | ||
|30|0.0614|0.3%| | ||
|40|0.0611|0.3%| | ||
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## Part G | ||
Pressure |