5, 6, 7, 8, 9 دانشجویی: 9 ,8 ,7 ,6 ,5 Q3-b) For the shown constant-strain triangular element in Figure 3-b, assume plane

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5, 6, 7, 8, 9 دانشجویی: 9 ,8 ,7 ,6 ,5 Q3-b) For the shown constant-strain triangular element in Figure 3-b, assume plane

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5, 6, 7, 8, 9 دانشجویی: 9 ,8 ,7 ,6 ,5 Q3-b) For the shown constant-strain triangular element in Figure 3-b, assume plane stress condition and use the data in Table 3-b to determine a) stiffness matrix for the element and b) element stresses (Ox, Oy, Ixy). (5.25 Marks) س 5-3) برای المان مثلثی کرنش -تابت نمایش داده شده در شکل 3b سرايط تنش صفحه ای فرض می شود با اطلاعات جدول 6-3، با استفاده از روش المان محدود، تعیین نمایید الف) ماتریس سخی المان ملی، ب) (5.25 نمره) تنش های المان (0x, y, xy) . Table 3-b E = 10(MPsi) Nodal dl= 0.02 (in) displacements 7= 0.01 (in) 1 = 0.20 up = 0.01(in) 12 = 0 (in) t(thickness) = 1(in) ug = 0.01 (in) 13 = 0 (in) (3,4) (in)m st (1,4) | = 3 j = 2 Figure 3-b i = 1 (2,2) (0,0) (in)
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