Question

[13) A beam bending experiment was conducted in our laboratory, as shown in the following igure (left). Nine strain gauges were installed on the select locations as shown in the close-up figure (right), namely, Gauges 1-9. Which of the following statements is INCORRECT?_ A) The lending normal strain is linearly distributed acros Games iM The bending normal stress is linearly distributed across Gauges 1-9 D) Largsst bending normal stress among all gauges should occur at Gauge 9. [14] The Largest bending normal stress among all gauges should occur at Gauges. the built up beam was made boy glhing together several wooden planks. Knowing equation vess at any point on any cross section can be calculated through the inertia nrt-뷰, where V is the shear free at the cros section, the moment of the cross-sectional arens tine thickness, determine Q and t for the calculation of the shear stress at B al area; Q is the associated area moment and t is the asso- t ete 30 16 16 30 16 64 16 Dimensions in millimeters A) Q-25600 mm2t 32 mm B) Q-51200 mm, t-32 mm C) Q- 51200 mm t -16 mm D) Q - 19200 mm2t 16 mm

Answer 1

30 1b g0 16 30 A- 8 Box6)x (0) S1200mm3 t- 32mm not duarby viibh leax provide clean imge