4. Prove that N1+ N2,+N3-1 for the Constant Strain Triangle Element (15%) 4. Prove that N1+...

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4. Prove that N1+ N2,+N3-1 for the Constant Strain Triangle Element (15%)

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element (1,9) formuta for th hape fun ch on N,- 2 A a2t b2 E 29 N2 2 A a3btj 2 A N3 Thuy sahs fy NI b,-13 a = b3 a 3 1hiangle A- aea I det Хз 12 A 1х,у,t , - X29, - Яз1,- Х,1) Ny - G7, *9,)t (, уJx tGy-1,)y 2 A )3 NzF X3% 43t(3g- (1у 2 A 2 A

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4. Prove that N1+ N2,+N3-1 for the Constant Strain Triangle Element (15%) 4. Prove that N1+...

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4. Prove that N1+ N2,+N3-1 for the Constant Strain Triangle Element (15%) 4. Prove that N1+...

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