it is Laboratory Report consists of two parts: Shear and bending moment analysis and Designing a beam.

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ENS1101D – Online Laboratory Report Submission DUE DATE and TIME: Monday, 3 May 2021 @ 5PM Late submissions incur a late penalty – refer to the Unit Outline. Part I - Shear and bending moment analysis – theoretical overview - 10 marks (5%) Watch the video: https://youtu.be/C-FEVzI8oe8. Answer the following questions: What the shear forces and bending moments are? insert your answer here 1 mark How the beam can be loaded ? insert your answer here 1 mark How the beam can be supported? insert your answer here 1 mark How do you calculate the shear and bending moment? insert your answer here 1 mark What does it mean when we say that the beam is statically determinate? insert your answer here 1 mark How do we represent the shear force and bending moment if we cut the beam from the left to the right? insert your answer here 0.5 mark At 6:52 in this video, what error have you noticed in one of the equilibrium equations? insert your answer here 1 mark Page |1 What is the relationship between applied loads, shear forces and bending moments? insert your answer here 1 mark At which location of the beam would you try to locate the local minimum or local maximum of bending moment? insert your answer here 0.5 mark In the last example of the video what did you observe on the bending moment diagram when the concentrated moment was applied on the beam? At what location? What does it mean when the beam is sagging in relation to the bending moment? insert your answer here 0.5 mark insert your answer here 0.5 mark What does it mean when the beam is hogging in relation to the bending moment? insert your answer here 0.5 mark What does it mean when the beam is straight in relation to the bending moment? insert your answer here 0.5 mark Page |2 Part II – Designing a beam under given specifications for the maximum internal force (shear) and the maximum internal moment (bending moment) - 10 marks (5%) Go to the website: skyciv.com, select ‘Free Tools’ and then Beam Calculator. Your task is to design the beam that will follow the specifications provided below. Provide the answers in the table below. Beam specifications: Beam length – 1.5 m Force units – kN (concentrated load) and kN/m (distributed load) Supports: 1 support that is fixed (pin connection) and 1 support that allows for expansion/contraction of the beam (roller, rocker) – location of these supports will be dependent on the maximum values of shear and bending moment Loads – apply one concentrated load (downwards) that is 90 degrees to the beam (in kN) and one distributed load (downwards) – location of these forces will be dependent on the maximum values of shear and bending moment Maximum shear: Maximum bending moment:  1.7kN  1.2 kNm a) Once you design your beam following the specifications above, provide screenshots of your beam and shear and bending diagram. Screenshot of the beam as per specification above: insert your answer here 1 mark Screenshot of the shear diagram: insert your answer here 1 mark Page |3 Screenshot of the bending moment diagram: insert your answer here 1 mark b) To support your answer in a) provide detailed working of your shear and bending moment analysis for all sections of the beam. Solve the beam as per the lecture/tutorial handouts. Calculate reaction forces in the supports. Include the free body diagram, the coordinate system and equations of equilibrium. Provide detailed working of the shear and bending values for all sections/cuts. Calculate the maximum value of shear and bending moment One of the option to minimise bending moment in the beam could be to apply different loads at different locations. 2 marks insert your answer here insert your answer here 2 marks insert your answer here 2 marks insert your answer here 1 mark As an engineer, what else could you suggest to even more minimise the bending moment that you have designed? Any problems or limitations? The End of the Lab Report Page |4
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