MM2MS3 Asymmetrical Bending Laboratory Report Date of Laboratory: Name of Student: Student ID: Summary Asymmetrical bending is bending couples acting in a plane of symmetric. If loads do not act in plane of symmetry‚ this leads to deflection in a plane perpendicular to the loading plane as well as in the loading plane. This coupling does not occur if the loading is in principal plane. The experiment was conducted to investigate the deflections of the tip of a cantilever when loaded transversely
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Theory of simple bending (assumptions) Material of beam is homogenous and isotropic => constant E in all direction Young’s modulus is constant in compression and tension => to simplify analysis Transverse section which are plane before bending before bending remain plain after bending. => Eliminate effects of strains in other direction (next slide) Beam is initially straight and all longitudinal filaments bend in circular arcs => simplify calculations Radius of curvature is large compared
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SUPPORTED BEAMS DATE PERFORMED: 13TH OF AUGUST 2008. AIM: I) TO DETERMINE THE REACTIONS RA AND RB FOR A BEAM SIMPLY SUPPORTED AT ITS ENDS II) TO DETERMINE THE VALUES OF RA AND RB AS A GIVEN LOAD MOVES FROM ONE END OF A SIMPLY SUPPORTED BEAM TO THE OTHER APPARATUS: • Two spring balances. • A steel beam of hollow section. • Load hanger. • Load / weights ranging from 2kg to 10kg. • Meter rule. • Inextensible cord. THEORY A beam with
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MEM23061A Test Mechanical Engineering Materials Lab. BEAM BENDING The bending of beams is one of the most important types of stress in engineering. Bending is more likely to be a critical stress than other types of stress - like tension‚ compression etc. In this laboratory‚ we will be determining the Modulus of Elasticity E (also called Young’s Modulus) of the various materials and using Solid Edge to determine the Second Moment of Area for the different cross-sections. [pic] Equations
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used to determine minimum thickness of various twoway slabs based on deflection: Minimum Suggested Thickness “h” for Two-Way Slabs Two-Way Slab System: Minimum Thickness h: Flat plate Ln/30 Flat plate with spandrel beams Ln/33 Flat slab Ln/33 Flat slab with spandrel beams Ln/36 Two-way beam-supported slab Ln/33 Ln = clear distance in long direction Flat Plates Flat plates are the most common type of two-way slab system. It is commonly used in multi-story construction such as hotels‚ hospitals‚ offices
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Laboratory EXPERIMENT NO. 1 Aim: - To verify strain in an externally loaded beam with the help of a strain gauge indicator and to verify theoretically. Apparatus: - Strain gauge Indicator‚ weights‚ hanger‚ scale‚ verniar caliper. Formula: - f = M y I Theory : - When a beam is loaded with some external loading‚ moment & shear force are set up at each strain. The bending moment at a section tends to deflect the beam & internal stresses tend to resist its bending. This internal resistance is
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ST01 ST02 ST03 ST04 ST05 ST06 Assessment • • Attendance: 10% Group Report: 90% (Each Lab Session: 15%). The report will be submitted 1 week after the lab session. Topic Bending Stress in a Beam Steel Bars under Pure Tensile Forces Torsion of Circular Sections Buckling of Struts Continuous and Indeterminate Beams Redundant Truss Please provide the following parts in your report: • Introduction (purpose of the experiment) • Theory • Experimental Results • Analyzing the Experimental Results • Conclusions
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com/area-moment-inertia-d_1328.html 2. http://www.ecourse.ou.edu/cgi-bin/ebook.cgi?doc=”&topic=me&chap_sec=09.3?&page=theory 3. http://www.toolingu.com/definition-570240-28512-eccentric-loading.html 4. http://www.freestudy.co.uk/statics/beams/beam%20tut3.pdf
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simple basic components and members of a building viz.‚ Slabs‚ Beams‚ Columns and Footings. In order to design them‚ it is important to first obtain the plan of the particular building that is‚ positioning of the particular rooms (Drawing room‚ bed room‚ kitchen toilet etc.) such that they serve their respective purpose and also suiting to the requirement and comfort of the inhabitants. Thereby depending on the suitability; plan layout of beams and the position of columns are fixed. Thereafter‚ the loads
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Question 1 a) What is meant by a load path? A load path is the transfer of loads and forces from the through the building to the bottom of the building‚ following the most direct structural path. b) Sketch an example of a load path from roof cladding to foundation for a brick veneer dwelling with trussed roof. Label clearly and indicate the load path with arrows. Diagram 1.b Page 3 Question 2 Outline the roles of the following people in the design of a building: Architect:
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