Schedule 40 pipe is made of mild steel, which is ductile (well into its “upper shelf”) at ordinary temperatures (around 300 K).
KIc of mild steel is about 140 Mpa√m.
Based on the calculation of stress intensity in a cracked 6 inch schedule 40 pipe filled with 1000 psig water (about 6 Mpa√m), and without knowing anything further about the pipe’s environment, what failure modes are possible?
a. brittle fracture
b. ductile fracture
c. high cycle fatigue
d. low cycle fatigue
e. radiation embrittlement
f. thermal creep

Solution PreviewSolution Preview

These solutions may offer step-by-step problem-solving explanations or good writing examples that include modern styles of formatting and construction of bibliographies out of text citations and references. Students may use these solutions for personal skill-building and practice. Unethical use is strictly forbidden.

The circumferential stress in the pipe from the 1000 psi internal pressure is calculated as: Pr/t. The value of t for 6" schedule 40 pipe is 0.28", therefore the circumferential stress is 10,714 psi....

By purchasing this solution you'll be able to access the following files:

for this solution

or FREE if you
register a new account!

PayPal, G Pay, ApplePay, Amazon Pay, and all major credit cards accepted.

Find A Tutor

View available Mechanical Engineering Tutors

Get College Homework Help.

Are you sure you don't want to upload any files?

Fast tutor response requires as much info as possible.

Upload a file
Continue without uploading

We couldn't find that subject.
Please select the best match from the list below.

We'll send you an email right away. If it's not in your inbox, check your spam folder.

  • 1
  • 2
  • 3
Live Chats