Question

midterm exam 1 - fall 2025
started: sep 18 at 9:34am
quiz instructions
this exam will be held in room 252 in the chain building
attendance will be taken. you will not be allowed to take the exam outside this classroom
question 13
how is youngs modulus (e) computed?
by taking the maximum stress value from the stress - strain curve
by computing the slope of the linear portion of the stress - strain curve
using online sources (google search)
by estimating the value based on maximum strain
by dividing the normal stress by the deformation

Explanation:

Young's modulus is a measure of the stiffness of a material and is calculated as the ratio of stress to strain in the elastic (linear - portion) region of the stress - strain curve. The slope of the linear portion of the stress - strain curve gives the value of Young's modulus.

Answer:

By computing the slope of the linear portion of the stress - strain curve