The syringe with plunger is shown in Figure P9-23. The material of the syringe is glass with E = 69 GPa, v = 0.15, and tensile strength of 5 MPa. The bottom hole is assumed to be closed under test conditions. Determine the deformation and stresses in the glass. Compare the maximum principal stress in the glass to the ultimate tensile strength. Do you think the syringe is safe? Why?

Figure P9-23

Transcribed Image Text:

45 N Plunger 15 mm 25 mm- 20 mm Liquid 90 mm Glass syringe 45 8 mm 8 mm + 4 mm mm 12 mm