- 3 Fig Q3 Shows A Typical Arrangement To Test The Shear Strength Of A Material The Test Piece Is Clamped To The Block A 1 (92.54 KiB) Viewed 42 times
3. Fig Q3 shows a typical arrangement to test the shear strength of a material. The test piece is clamped to the block as shown and a suitable load is applied with the shear tool, until the test piece fails. The test pieces are machined to a common thickness t = 10 mm. The area of the shear tool is A = 900 mm2. You are tasked to design a test programme for the following test samples. You have general estimates for the types of materials from engineering handbooks, as shown in Fig Q3. (a) Draw a free body diagram of the test piece. (6 marks) (b) For the listed materials, calculate suitable loads to be applied through the shear tool. (8 marks) (c) Assuming the capability of the shear tool is limited. How could you reduce the necessary loads? Suggest suitable adjustments. (6 marks) Shear tool Load -Test piece Material Low Carbon Steel Al alloy 3003-0 Stainless steel 410 Annealed Shear Strength (MPa) 345 76 517 Block Figure Q3: Shear test arrangement