Question: Problem 5 . Figure P 5 shows the load - displacement records of a compact tension specimen of width W = 5 0 mm and

Problem 5. Figure P5 shows the load-displacement records of a compact tension specimen of
width W=50mm and thickness B=10mm containing three cracks of length a=24,25,26
mm . The specimen with a=25mm fails at a displacement of u=2mm. Determine the value
of J using both the multiple-specimen method and the single-specimen method.
Figure P5
Problem 5 . Figure P 5 shows the load -

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