Question

Consider the deformation of the initially square region ABCD shown. The distances a, b, and e are unknown and need to be determined The two strain gages shown read -0.2 (horizontal gage) and -0.3 (45 gage) afler deformation we know that ơ,'500 ps, but ơn and r, are not known Assume that the plate is in a state of plane stress and that the material is elastic and has Young's modulus E-2000 psi and Poisson's rato -0.4. Compute the components of the stress and strain tensors and the values of a, h, and e. Compute the train Compute the principal stresses and Draw Mohr's circle for the stress 1+b 1+a Undeformed configuration Deformed configuration Ans. ơ.-670.7 o, -79.3

Answer 1

2. 첩: 01335 2(H) 2000- хо-33 CIto,u) 500 6285o 268S 5o 012 O 8A5 o 0,1875 aro 25 0 Side A

tb 0.325 C038 toro 2 2 2 325 ± 29 6273 s 2- R 25 a 62 O) Cao, 차343

กั R257 (79,310) C(325,0) 2X 2 1