Features

• Elastic deformation of statically determinate or indeterminate beams under bending load1  
• Elastic torsion of round bars under torque1 
• Influence of material, cross-section, and clamping length on deformation  

Bending and torsion are typical loads to which components are subjected. The resultant stresses and  deformations can lead to the failure of the component. A number of different factors play a role in this,  including the material, the cross-section of the bar, the clamping length, and the method of bearing support.

Tesca Deformation of Bars under Bending or Torsion investigates the influence of these factors on the deformation of a bar under bending load or torque. A set of test bars has been assembled so as to permit direct comparison of measurement results. The bar under investigation is fixed to two movable support blocks and loaded down by a weight. A dial gauge records the resulting deformation. The support blocks include clamping chucks to hold the torsion bars and bearings for  the bars in the bend test. The bearings offer a range of clamping options, enabling statically  determinate or indeterminate bearing supports to be investigated.  
The torque is applied by a device mounted on a support block. The point of load application to  generate the bending moment is adjustable.  
The various elements of the experiment are clearly laid-out and housed securely in a storage system.  The complete test set-up is arranged on the frame.  
The well-structured instructional material sets out the fundamentals and provides a step-by-step  guide through the experiments.  

Specifications
Elastic deformation of bars under bending or torsion  
Bending tests with statically determinate and indeterminate systems  
Torsion tests with a statically determinate system  
Supports in the bending test may be clamped or free  
2 adjustable blocks with clamping chuck for torsion tests and supports for bending tests  
Set of weights to generate the bending or torque  
Dial gauge with bracket  
Storage system to house the components 

Technical Specifications:
17 bars for bending tests  
      -     Material: aluminum, 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 (aluminum, steel, brass, copper)
      -     LxWxH: 10x10x510mm (aluminium)  
22 torsion bars   
      -     Material: aluminium, steel, brass, copper  
      -     Length with d=10mm: 50...640mm (aluminium)  
      -     DxL: 10x50mm/10x340mm (aluminium, steel, copper, brass)  
      -     Diameter with L=50/340mm: d=5...12mm (steel)  
Dial gauge: 0...10mm, graduations: 0,01mm  
Tape measure, graduations: 0,01m  
Weights  
    -     1x 1N (hanger)  
    -     1x 1N, 1x 4N, 1X 5N, 1x 9N  

Experiments
Bending tests  
      -     Determination of the modulus of elasticity  
      -     Statically determinate systems  
Beam mounted on 2 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 the span  
      -     Formulation of proportional relationships for the deformation  Torsion experiments  
      -     Determination of the shear modulus of various materials  
      -     The angle of twist dependent on  
Clamping length  
Bar diameter  
      - Formulation of proportional relationships for the angle of twist 

Scope of Delivery:
1 frame  
2 bearing blocks  
1 device to generate the torque  
17 bars for bending test  
22 torsion bars  
1 dial gauge with bracket, 1 tape measure  
1 set of weights including hanger  
2 hexagon socket wrenches  
1 storage system  
1 set of instructional material