Question 3 (a) Figure 4 on the right shows a large Metal Z alloy plate with a critical stress-intensity factor of 50 (MPa ✓m). Given the value of the geometrical function, f= 5.15 and the fact that this plate fractures at a stress of 200 MPa, i. Calculate the maximum center crack length of this plate. ii. Metal Z will/will not fracture when put under the following conditions: 1 1 1 K₁=fo Ja geometrical function H↓↓ Condition 1: Undergo fracture at a maximum center crack of 1.2mm Condition 2: Does not undergo fracture at a maximum centre crack of 0.8 mm. Figure 4 Determine the minimum stress level that will lead to fracture in Condition 1 and the maximum stress level that will not lead to fracture in Condition 2. Explain and show all your working clearly.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The subject is corrosion and protection of materials. 

Question 36
(a) Figure 4 on the right shows a large Metal Z alloy
plate with a critical stress-intensity factor of 50
(MPa v m). Given the value of the geometrical
function, f = 5.15 and the fact that this plate
fractures at a stress of 200 MPa,
Ki=fo Jra
2a
giometrical
function
i. Calculate the maximum center crack length of
this plate.
ii. Metal Z will/will not fracture when put under
the following conditions:
Figure 4
Condition 1: Undergo fracture at a maximum center crack of 1.2mm
Condition 2: Does not undergo fracture at a maximum centre crack of 0.8 mm.
Determine the minimum stress level that will lead to fracture in Condition 1 and the
maximum stress level that will not lead to fracture in Condition 2. Explain and show
all your working clearly.
Transcribed Image Text:Question 36 (a) Figure 4 on the right shows a large Metal Z alloy plate with a critical stress-intensity factor of 50 (MPa v m). Given the value of the geometrical function, f = 5.15 and the fact that this plate fractures at a stress of 200 MPa, Ki=fo Jra 2a giometrical function i. Calculate the maximum center crack length of this plate. ii. Metal Z will/will not fracture when put under the following conditions: Figure 4 Condition 1: Undergo fracture at a maximum center crack of 1.2mm Condition 2: Does not undergo fracture at a maximum centre crack of 0.8 mm. Determine the minimum stress level that will lead to fracture in Condition 1 and the maximum stress level that will not lead to fracture in Condition 2. Explain and show all your working clearly.
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