The allowable stress used in the design of a stecl bar is 80 MPa. Deter mine the largest couple

step 1 that we see right here and let me see okay um what's the allowable torque that will allow if she

The allowable stress used in the design of a stecl bar is 80...

The allowable stress used in the design of a stecl bar is $80 \mathrm{MPa}$. Deter mine the largest couple $M$ that can be applicd to the bar (a) if the bar is designed with grooves having semicircular portions of mdius $r=15 \mathrm{mm}$ as shown in Fig $a,(b)$ if the bar is redesigned by removing the material to the left and right of the dashed lines as shown in Fig. $b$.

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Allowable Stress

Allowable stress is the maximum stress that a structural member or material is permitted to experience during its use, based on safety factors and material properties. It ensures that the design does not approach the material's failure limits, thus keeping the structure safe and reliable under load.

Bending Moment

The bending moment is the internal moment that develops in a structural element when external loads cause it to bend. It is a critical factor in the design of beams and bars since it directly influences the bending stress distribution across the cross section.

Section Modulus

The section modulus is a geometric property of a section that plays a central role in bending analysis. It is defined as the ratio of the moment of inertia of the section to the distance from the neutral axis to the outermost fiber, and it provides a measure of the cross section’s ability to resist bending.

Stress Concentration

Stress concentration refers to the localized increase in stress occurring near geometric discontinuities, such as grooves or notches, in a material. These regions can amplify the applied stresses and often become the critical points for failure, requiring careful design and analysis to ensure structural integrity.

Transcript

Please give Ace some feedback