Question:
The analytical treatment of ductile fracture using a model of cylindrical holes with initial radius (b) and average spacing (L) was proposed by
The analytical treatment of ductile fracture using a model of cylindrical holes with initial radius (b) and average spacing (L) was proposed by
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Ductile fracture occurs due to void nucleation and coalescence.
Updated On: Jun 29, 2026
- Griffith
- Orowan
- Hall-Petch
- McClintock
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The Correct Option is D
Solution and Explanation
Concept:
Ductile fracture occurs through nucleation, growth, and coalescence of microvoids. McClintock developed a theoretical model describing ductile fracture using cylindrical voids.
Step 1: Void model.
Assumptions:
• material contains cylindrical voids
• initial radius = $b$
• spacing between voids = $L$
Step 2: Fracture mechanism.
Under tensile loading:
• voids grow
• voids coalesce
• leads to fracture Final Answer: \[ \boxed{\text{McClintock}} \]
Step 1: Void model.
Assumptions:
• material contains cylindrical voids
• initial radius = $b$
• spacing between voids = $L$
Step 2: Fracture mechanism.
Under tensile loading:
• voids grow
• voids coalesce
• leads to fracture Final Answer: \[ \boxed{\text{McClintock}} \]
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