Consider the aluminum alloy bar with Kic =30 MPa vm, ay=500 MPa. Can you use the LEFM? Explain. 0.375 0.50 T P 2.0 1. Units in cm

A tendon tissue 100 mm long and having a square cross section 20 mm on an edge is pulled in tension with a load of 50 KN, and experiences an elongation of 0.10 mm. Assuming that the deformation is entirely elastic, calculate the elastic modulus of the issue Oa 125 OPa Ob 22 25 GPa OC 25 GPa Od 12.5 GPa

For a large plate, the geometry factor, f, is 1.03. Suppose a steel casting alloy has a critical fracture toughness of 78,886 psi*in1/2. The steel will be exposed to a stress of 40,295 psi during service. Calculate the minimum size of an edge crack that will grow. Repeat the calculation for Al2O3 with a fracture toughness of 1,600 psi*in1/2. How many times larger is the minimum size edge crack in the steel versus the alumina?

1. For the stress-strain curve shown below, please estimate the properties indicated. (a) Fracture Strain Please do your work on a separate sheet of paper, and put your answers in the boxes on the right. Be sure to include the proper symbol and units. Stress Strain 70 60 50 Stress (ksi) 240 30 20 10 70 0 0.000 60 50 Stress (ksi) 40 20 10 KULL 0 0.000 0.010 0.050 0.100 Strain (in/in) Stress Strain 0.020 0.030 Strain (in/in) 0.040 0.150 0.050 (b) Ultimate Tensile Stress (c) Fracture Stress (d) Proportional Limit (e) Elastic Modulus (1) Yield Stress (g) Tensile Toughness (Modulus of Toughness) (h) Modulus of Resilience