section 200 mm x 100 mm spans 6 metres and carries a uniform load of 2 kN/m. a) Calculate the reactions. b) Draw the shear force and bending moment diagrams. c) Calculate I for the cross section‚ about the axis of bending. d) Calculate the maximum compressive stress in the beam‚ and show where it occurs along the length‚ and on the cross section. e) Calculate the maximum tensile stress in the beam‚ and show where it occurs along the length‚ and on the cross section. 2 kN/m 6 metres 3. The machine
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Write your name here Surname Other names Centre Number Candidate Number Edexcel GCE Physics Advanced Subsidiary Unit 1: Physics on the Go Friday 11 January 2013 – Afternoon Time: 1 hour 30 minutes You must have: Ruler Paper Reference 6PH01/01 Total Marks Instructions Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name‚ centre number and candidate number. Answer all questions. Answer the questions in the spaces provided
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straight members that are connected at junctions known as nodes. External forces created by bodies known as loads‚ are often placed on areas of the structures which then creates internal forces in the members in form of either a Tensile Force or a Compressive Force. The practical analysis was carried out to help better our understanding on the theories behind the behaviour of a truss under different circumstances. Analysis A Pratt truss illustrating the arrangement of the bars By calculation
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1844. You can identify a Pratt truss by its diagonal members‚ which (except for the very end ones) all slant down and in toward the center of the span. The diagonal members are subjected to the tension forces and the vertical members handle the compressive force when a live load is applied at the center of
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The stem is the curved edge stretching from the keel below‚ up to the gunwale of the boat. The stem is more often found on wooden boats or ships‚ but not exclusively. The stem is part of the physical structure of a wooden boat or ship that gives it strength at the critical section of the structure‚ bringing together the port and starboard side planks of the hull. There are two styles of stems: plumb and raked. When the stem comes up from the water‚ if it is perpendicular to the waterline it is "plumb
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EXPERIMENT 2 – BUCKLING OF STRUTS Aim We can find two failure points in members exposed to axial compressive forces‚ also called struts. The first one is squashing of the member‚ which will only happened if a member is “Stocky”. The second‚ and most common one‚ is buckling of the member. This failure happens without much warning‚ and therefore it is important for engineers to be able to calculate what load on structural element will cause buckling. In this experiment‚ we will observe the failure
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is first constructed. On installation of a surplus bar the truss becomes overdeterminate. By way of a load application device‚ straight or inclined forces are applied to the truss‚ thereby simulating various load cases. The occurring tensile and compressive forces in the bars are recorded by means of strain gauges. Computerised evaluation is provided by measurement amplifier FL 151. The software is used to manage the measurement data and provide graphical representation of the bar forces. The software
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1) Wrinkling in the flange. Wrinkling in a drawn part consists of a series of ridges that form radially in the undrawn flange of the work part due to compressive buckling. Wrinkling in the wall. If and when the flange is drawn into the cup‚ these ridges appear in the vertical wall. Tearing. Tearing is an open crack in the vertical wall‚ usually near the base of the drawn cup‚ due to high tensile stresses that cause thinning and failure of the metal at this location. This type of failure can also
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capacity of single angles was studied with the help of normalised load P/Py vs e/x0 curves for specimens S500 and S1100 under compression causing both major axis and minor axis bending as shown in Fig. 4. The ultimate load was normalised with yield strength of specimens‚ Py and eccentricity was normalised with x0‚ the distance of centroid of the angle cross section from shear centre. Fig. 4 shows that specimens subjected to minor axis bending failed at considerably lower load than those subjected
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The Bound Man by Ilse Aighinger The thing that I found most compelling in the story ‘‘The Bound Man’’ was that the man was not worried about being released from the rope‚ rather he wanted to be bound and with that disadvantage he learned to adapt with it and live life as if he wasn’t bound at all. The reason why I find his situation and his own reaction to it so compelling is because while I was reading the story‚ I was putting myself in his situation and I would not of thought to react in such
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