Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
117 views
in General by (72.6k points)
closed by
A rectangular bar with a circular hole is to be made of a material with actual maximum permissible stress of 150 MPa. If stress concentration factor for the configuration is 3.0, what is the nominal average stress for sizing the section?
1. 450 MPa
2. 50 MPa
3. 147 MPa
4. None of these

1 Answer

0 votes
by (121k points)
selected by
 
Best answer
Correct Answer - Option 2 : 50 MPa

Concept:

Stress developed at irregular section = Normal average stress × Stress concentration factor

Stress developed at irregular section ≤ maximum permissible stress

Calculation:

Given:

Stress concentration factor = 3 , maximum permissible stress = 150 MPa

Stress developed at irregular section ≤ maximum permissible stress

∴ Normal average stress × stress concentration factor ≤ 150

Normal average stress × 3 = 150 

∴ Normal average stress = 50 MPa 

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...