 |  Stress Analysis 42 Flashcards |  Start |
 | What is normal stress? |  Card: 1 / 42 |
| Normal stress is the stress component perpendicular to a plane. | Card: 2 / 42 |
| Calculate bending stress using the formula σ = My/I. | Card: 3 / 42 |
| Σ = bending moment × distance from neutral axis / moment of inertia. | Card: 4 / 42 |
| True or False: Shear stress occurs perpendicular to a material's surface. | Card: 5 / 42 |
| False. Shear stress occurs parallel to a material's surface. | Card: 6 / 42 |
| What is the formula for torsional shear stress? | Card: 7 / 42 |
| Τ = Tρ/J, where T = torque, ρ = radial distance, J = polar moment of inertia. | Card: 8 / 42 |
| Fill in the blank: Principal stresses occur where shear stress is _____. | Card: 9 / 42 |
| Zero. | Card: 10 / 42 |
| How does Mohr's Circle help in stress analysis? | Card: 11 / 42 |
| It graphically represents stress transformation and principal stresses. | Card: 12 / 42 |
| What happens when the maximum shear stress reaches the yield strength? | Card: 13 / 42 |
| Yielding begins according to the Tresca criterion. | Card: 14 / 42 |
| What is the maximum bending stress in a beam? | Card: 15 / 42 |
| It occurs at the outermost fiber. | Card: 16 / 42 |
| Multiple Choice: What is the formula for hoop stress in cylindrical vessels? A) σ_h = pr/t B) σ_h = pr/2t C) σ_h = 2pr/t D) σ_h = p/2t | Card: 17 / 42 |
| A) σ_h = pr/t. | Card: 18 / 42 |
| What is the significance of the von Mises criterion? | Card: 19 / 42 |
| It predicts yielding in ductile materials under complex stress states. | Card: 20 / 42 |
| What is the polar moment of inertia for a solid circular shaft? | Card: 21 / 42 |
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| J = πd⁴/32. | Card: 22 / 42 |
| Sequence: Put these in order: 1. Calculate I 2. Find σ 3. Determine τ 4. Check failure criteria. | Card: 23 / 42 |
| 1, 2, 3, 4. | Card: 24 / 42 |
| Comparison: How does bending stress differ from axial stress? | Card: 25 / 42 |
| Bending stress results from moments; axial stress results from axial loads. | Card: 26 / 42 |
| What causes stress concentration? | Card: 27 / 42 |
| Geometric discontinuities like holes or notches. | Card: 28 / 42 |
| Riddle: I am a circle that shows stress transformation. What am I? | Card: 29 / 42 |
| Mohr's Circle. | Card: 30 / 42 |
| Fill in the blank: The maximum shear stress occurs at _____ degrees to the principal planes. | Card: 31 / 42 |
| 45. | Card: 32 / 42 |
| True or False: A hollow circular shaft has a different J formula than a solid shaft. | Card: 33 / 42 |
| True. The formulas differ for solid and hollow shafts. | Card: 34 / 42 |
| What is the maximum shear stress in a three-dimensional stress state? | Card: 35 / 42 |
| Τ_max = (σ_1 - σ_3)/2. | Card: 36 / 42 |
| What is the formula for calculating factor of safety (n)? | Card: 37 / 42 |
| N = S_y/σ_e, where S_y is yield strength. | Card: 38 / 42 |
| What happens to stress in a thin-walled pressure vessel when pressure increases? | Card: 39 / 42 |
| Stress increases proportionally with the internal pressure. | Card: 40 / 42 |
| Multiple Choice: What is the relationship between hoop stress and longitudinal stress in a cylinder? A) σ_h = σ_l B) σ_h = 2σ_l C) σ_h = σ_l/2 D) σ_h = 3σ_l | Card: 41 / 42 |
| B) σ_h = 2σ_l. | Card: 42 / 42 |
| Completed! Keep practicing to master all of them. |  Restart |
