Question

A copper rod of 50mm diameter is subjected to tensile load of 5000 newtons. Calculate the stress.​

Answer 1

Answer:

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Step-by-step explanation:

This portion of the problem asks that we compute the elongation of the brass specimen. The first

calculation necessary is that of the applied stress using Equation 6.1, as

! = F

A0

= F

"

d0

2

#

$

% &

'

(

2 = 5000 N

"

6 ) 10*3m

2

#

$

%

&

'

(

2 = 177) 106 N/m2 =177 MPa (25,000 psi)

From the stress-strain plot in Figure 6.12, this stress corresponds to a strain of about 2.0 × 10-3. From the definition

of strain, Equation 6.2

!l = " l0 = (2.0 # 10-3)(50 mm) = 0.10 mm (4 # 10-3 in.)