What is net section rupture failure?(a) rupture of member when the cross section reaches yield stress(b) rupture of member when the cross section reaches ultimate stress(c) rupture of member when the cross section reaches less value than yield stress(d) rupture of member when the cross section is reachesvery less value than ultimate stressThis question was addressed to me by my college professor while I was bunking the class.The question is from Modes of Failure, Slenderness Ratio and displacement topic in section Design of Tension Members of Design of Steel Structures

What is net section rupture failure?(a) rupture of member when the cro

1.	What is net section rupture failure?(a) rupture of member when the cross section reaches yield stress(b) rupture of member when the cross section reaches ultimate stress(c) rupture of member when the cross section reaches less value than yield stress(d) rupture of member when the cross section is reachesvery less value than ultimate stressThis question was addressed to me by my college professor while I was bunking the class.The question is from Modes of Failure, Slenderness Ratio and displacement topic in section Design of Tension Members of Design of Steel Structures
Answer» Correct answer is (b) rupture of member when the cross section reaches ultimate stress The best I can explain: The point adjacent to hole reaches yield stress FIRST when tension member with hole is loaded statically. The stress at that point remains CONSTANT and each fibre AWAY from hole progressively reaches yield stress on further loading. With increasing LOAD, deformations continue until finally rupture of member occurs when ENTIRE net cross section of member reaches ultimate stress.

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