elastic deformation of curved-axis beams

Description:

• In construction engineering, a distinction is made between beams and arches.
• An arch is a statically indeterminate supported structure with a curved axis and two fixed supports or clamp fixings.
• The supports of an arch (such as a double-articulated arch) absorb forces vertically and horizontally.
• The ends of the arch in the supports do not move.
• This produces the static arching effect of the system.
• In mechanical engineering, crane hooks and chain links are typical examples of a curved beam.
• FL 170includes three different beams, borne on statically determinate supports:
• circular beam,
• a semi-circular beam and
• a quadrant beam.
• The beam under test is loaded with weights.
• Dial gauges record its horizontal and vertical deformations.
• All three beams have the same cross-section and so the same second moment of area.
• This enables test results to be directly compared.
• Simi-circular and circular beams are fixed to a support on the pillar.
• The quadrant beam is clamped into a support block.
• The various elements of the experiment are clearly laid-out and housed securely in a storage system.

Technical Details;

Specification:

1. elastic deformation of curved-axis beams under load
2. 3 different beams with the same cross-section: circular beam, semi-circular beam, quadrant beam
3. support block to fix the quadrant beam
4. pillar with support for mounting the circular or semi-circular beam
5. 3 dial gauges to record the horizontal and vertical deformation
6. storage system to house the components

Technical Data:

Curved-axis beam:

• radius: approx. 150mm
• cross-section WxH: 20x5mm
• material: steel, galvanised

Dial gauges:

• measuring range: 0…20mm
• graduation: 0,01mm

Weights:

• 1x 1N (hanger)
• 2x 2N
• 1x 5N
• 1x 10N
• 4x 20N

Dimensions & Weight:

• L x W x H: 400x300x650mm
• Weight: approx. 21kg
• L x W x H: 1170x480x178mm (storage system)

Learning Objectives/Experiments:

• bending behaviour of a curved-axis beam
• circular beam
• semi-circular beam
• quadrant beam
• application of the principle of virtual forces (the force method) to calculate deformation
• second moment of area
• comparison of calculated and measured deformations

Scope of Delivery:

• 1 base plate with pillar
• 3 beams
• 3 dial gauges
• 1 set of weights
• 2 hexagon socket wrenches
• 1 storage system with foam inlay
• 1 set of instructional material

Features:

• circular, semi-circular and quadrant beams

Accessories:

Optional: WP 300.09 Laboratory trolley

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.