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Find nodal displacement and element stress for bar as shown in Fig. Take E = 200GPa

Subject: Finite Element Analysis

Topic: One Dimensional Problems

Difficulty: Medium


enter image description here

1 Answer
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a) Number of elements and nodes,

enter image description here

b) Element matrix Equation is given by,

[K]e=AEhe[1111]

Forelement1,A=250mm2,he=300mm
AEhe=2502105300=167.67103
[K]1=103[167.67167.67167.67167.67]

Forelement2,A=400mm2,he=200mm
AEhe=4002105200=400103
[K]2=103[400400400400]

Forelement3,A=400mm2,he=200mm
AEhe=4002105200=400103
$\begin{bmatrix} …

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