Deformation of bars under bending or torsion Influence of material, cross-section and clamping length on deformation Features - elastic deformation of statically determinate or indeterminate beams under bending load - elastic torsion of round bars under twisting moment - influence of material, cross-section and clamping length on deformation Learning objectives/experiments - bending tests -- determination of the modulus of elasticity -- statically determinate systems (beam mounted on two supports; cantilever beam) -- statically indeterminate systems (dual-span beam) -- deformation of a beam dependent on material, geometry (section width, height and length), type of support and length of span -- formulation of proportional relationships for the deformation - torsion tests -- determination of the shear modulus of various materials -- angle of twist dependent on clamping length, bar diameter -- formulation of proportional relationships for the angle of twist Specification [1] elastic deformation of bars under bending or torsion [2] bending tests with statically determinate and indeterminate systems [3] torsion tests with a statically determinate system [4] supports in the bending test may be clamped or free [5] 2 adjustable blocks with clamping chuck for torsion tests and supports for bending tests [6] weights to generate the bending or twisting moment [7] dial gauge with bracket [8] storage system to house the components Technical data 17 bars for bending tests - material: aluminium, steel, brass, copper - height with LxW 510x20mm: h=3...10mm - width with LxH 510x5mm: w=10...30mm - length with WxH 20x4mm: l=210...510mm - LxWxH: 20x4x510mm (Al, St, brass, Cu) - LxWxH: 10x10x510mm (aluminium) 22 torsion bars - material: aluminium, steel, brass, copper - length with Ø 10mm: 50...640mm (aluminium) - ØxL: 10x50mm/10x340mm (aluminium, steel, copper, brass) - diameter with L=50/340mm: Ø 5...12mm (steel) Dial gauge - 0...10mm, graduation: 0,01mm Tape measure - graduation: 0,01m Weights - 1x 100g (hanger) - 1x 100g, 1x 400g, 1X 500g, 1x 900g LxWxH: 1000x250x200mm Weight: approx. 18kg LxWxH: 1170x480x207mm (storage system) Weight: approx. 12kg (storage system)