1 OBJECTIVES 1. To investigate the axial stresses and strains in the structural framework by experiments;...

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1 OBJECTIVES 1. To investigate the axial stresses and strains in the structural framework by experiments; 2. To develop a finite element model using MATLAB software to calculate the nodal displacements, axial force, strain and stress in each member and their validation with experimental results; 3. To compare some aspect of the performance of structures fabricated from welded steel, extruded aluminium and Carbon Fibre Reinforced Plastics (CFRP). pinned support- AE AD DE EF AF fixed support 60 AB LL F CF sliding support- 140 mm Figure 1: Truss members are made from stainless steel material having Young's modulus E = 210GPa and the diameter of each member is d = 5.98mm. Use this for calculating axial strain, stress and force in each truss member for the applied load of 500N. 2 EXPERIMENTAL APPARATUS The structural framework made from stainless steel members is available at the Solid Mechanics Lab QB 1.05a. A sketch of the configuration, boundary conditions and loading is shown in Figure 1. Laboratory technical staff will be available during each session to assist you in performing experiments. At the end of the lab session, you should have measured strains in each structural member for the applied load of 500 N. Compile your experimental results in tabulated form, refer lab sheet. You should submit the signed lab sheet along with the final report. Failure to submit the signed lab sheet will result in losing the marks corresponding to the experimental section of this coursework. Refer to the manufacture guide, available in the lab, to learn more about the structural assembly, strain and force measuring system. 3 1 OBJECTIVES 1. To investigate the axial stresses and strains in the structural framework by experiments; 2. To develop a finite element model using MATLAB software to calculate the nodal displacements, axial force, strain and stress in each member and their validation with experimental results; 3. To compare some aspect of the performance of structures fabricated from welded steel, extruded aluminium and Carbon Fibre Reinforced Plastics (CFRP). pinned support- AE AD DE EF AF fixed support 60 AB LL F CF sliding support- 140 mm Figure 1: Truss members are made from stainless steel material having Young's modulus E = 210GPa and the diameter of each member is d = 5.98mm. Use this for calculating axial strain, stress and force in each truss member for the applied load of 500N. 2 EXPERIMENTAL APPARATUS The structural framework made from stainless steel members is available at the Solid Mechanics Lab QB 1.05a. A sketch of the configuration, boundary conditions and loading is shown in Figure 1. Laboratory technical staff will be available during each session to assist you in performing experiments. At the end of the lab session, you should have measured strains in each structural member for the applied load of 500 N. Compile your experimental results in tabulated form, refer lab sheet. You should submit the signed lab sheet along with the final report. Failure to submit the signed lab sheet will result in losing the marks corresponding to the experimental section of this coursework. Refer to the manufacture guide, available in the lab, to learn more about the structural assembly, strain and force measuring system. 3