Roughly, what is the ratio of the ultimate shear strength of steel compared to its tensile strength_________________?
Show answer Hide answer
Answer: B. half
Explanation
The ultimate shear strength of structural steel is approximately half of its ultimate tensile strength. Empirical testing consistently confirms that structural steels resist pure shear stresses up to roughly fifty percent of their tensile capacity. Failure criteria like the maximum shear stress theory align closely with this observed ratio in ductile metallic materials. Ultimate tensile strength measures the maximum nominal tensile stress a material can withstand before necking and eventual fracture. Shear strength measures a material's resistance to forces acting parallel and opposite to a plane within the body. Ductile metals typically fail in shear along planes of maximum principal stress when subjected to uniaxial tensile loading.
Saying the shear strength equals the tensile strength would incorrectly ignore the von Mises yielding behavior of ductile steels. The ultimate shear strength is significantly greater than one-fourth of the ultimate tensile strength for standard structural steels. Suggesting other specific ratios fails to match well-documented empirical material testing data for common engineering steels.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. If rain falls against the direction of walking, how must a pedestrian tilt their umbrella ________________________?
Show answer Hide answer
Answer: D. less inclined when standing
Walking into rain causes the relative velocity vector of the raindrops to tilt forward relative to a stationary observer. Standing still means the rain falls more vertically, requiring a different tilt angle for complete...
Q2. During a tensile test on a 1 cm cross-section specimen, the peak load was 8 tonnes and the neck cross-sectional area was 0.5 cm2. What is the ultimate tensile strength___________________?
Show answer Hide answer
Answer: B. 8 tonnes/cm2
Ultimate tensile strength is calculated using the peak load divided by the original cross-sectional area, giving 8 tonnes/cm². Dividing the peak load of 8 tonnes by the initial cross-sectional area of 1 cm² yields the en...
Q3. In which type of structural configuration is a diamond riveted joint typically applied _____________________?
Show answer Hide answer
Answer: A. butt joint
Diamond riveted joints feature tapered or triangular rivet arrangements that are ideally suited for connecting structural butt joints. This specialized geometry provides progressive load distribution across multiple cove...
Q4. Let n represent the number of members and y the number of joints; for a statically determinate frame, what is the relation n =________________?
Show answer Hide answer
Answer: C. 2/-3
A statically determinate pin-jointed plane frame satisfies the strict equilibrium condition between members and joints. The fundamental algebraic formula relating members and joints in such structures is given by two j m...
Q5. If the cross-sectional radius of a wire under tension is doubled, how is its Young’s modulus affected_______________?
Show answer Hide answer
Answer: E. remain unaffected
Young's modulus is an intrinsic material property independent of the wire's cross-sectional dimensions or radius. Doubling the cross-sectional radius changes the cross-sectional area and stiffness, but the material's ela...
Q6. A motor flywheel accelerates from standstill to 1000 rpm in 6 sec. Approximately how many total revolutions does it complete_________________?
Show answer Hide answer
Answer: B. 50
Integrating constant angular acceleration from zero to one thousand revolutions per minute over six seconds yields fifty revolutions. Average rotational speed during uniform linear acceleration equals half of the final m...