Sounds to me that it’s most likely locked up and you need a new one
Answer:
alot of uses depends on what you wanna use them for
Explanation:
well ofc you can use it to sort paper and other files but some people bend them and use them for other purposes as picking the lock to a door. theres alot of uses overall for a paperclip
Answer:
the answer how you analyzs the problwm
Answer:
Yes, fracture will occur
Explanation:
Half length of internal crack will be 4mm/2=2mm=0.002m
To find the dimensionless parameter, we use critical stress crack propagation equation
and making Y the subject
Where Y is the dimensionless parameter, a is half length of crack, K is plane strain fracture toughness, is critical stress required for initiating crack propagation. Substituting the figures given in question we obtain
When the maximum internal crack length is 6mm, half the length of internal crack is 6mm/2=3mm=0.003m
and making K the subject
and substituting 260 MPa for while a is taken as 0.003m and Y is already known
Therefore, fracture toughness at critical stress when maximum internal crack is 6mm is 42.455 Mpa and since it’s greater than 40 Mpa, fracture occurs to the material