answersLogoWhite

0


Best Answer

Because in theory we study regarding a perfect material but in reality the material will have many imperfections which decreases the stress required to deformed a material.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why the actual strength of a metal is lower than its predicted ideal strength?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Engineering

Define median signal strength?

Median signal strength is a number such that the actual signal is higher than that number 50% of the timeand lower than that number 50% of the time.


Why the tensile strength lower for LDPE than for HDPE?

HDPE has higher density therefore it has greater tensile strength


What is difference between characterstic strength and compressive strength?

A characteristic strength is the strength of the material used for design purpose, and is statistically defined by the lower 5% fractile of a bell curve. Compressive strength is a generic term that could refer to anything


How does shear strength of fine sand effect by void ratio?

Shear strength of fine sand is determined by the angularity of the sand particles, the grading of the sand. These two features governs the critical state shear strength parameters of the sand. Density, however, dictates the peak shear strength of the sand. i.e. the denser the sand, the higher the peak shear strength. But the critical shear strength remain the same. The denser the sand, the lower the void ratio. Shear strength of fine sand is determined by the angularity of the sand particles, the grading of the sand. These two features governs the critical state shear strength parameters of the sand. Density, however, dictates the peak shear strength of the sand. i.e. the denser the sand, the higher the peak shear strength. But the critical shear strength remain the same. The denser the sand, the lower the void ratio.


Why permissible compressive strength decreases with increase in grade of concrete?

it Gives Better estimation and assumption on how much it could carry. By logic, higher strength concrete is used on larger loads therefore, it is still not sure if the loads will be larger than the specified concrete strength. Therefore, having lower permissible strenth helps designers to have allowances for loadings to ensure safety