Beam is a structural member used to withstand load primarily by resisting bending. Internally beam experiences compressive, shear and tensile stresses.
The equipment is used for measurement of deflections and slopes of a beam under bending and compare with values calculated by differential equation and Area Moment Method. The beam has two adjustable height end supports with an interchangeable knife edges and a cantilever end clamp. Load hangers are used for point loads and a number of weights are used for uniform load. Deflections and slopes are measured by dial gauges.
Beams are key structural elements in mechanical engineering and in construction. A beam is a bar-shaped component in which the dimensions of the cross-section are much smaller than the length and which is subjected to load along and perpendicular to its longitudinal axis. The load perpendicular to the longitudinal axis causes a deformation of the beam – that is, bending. Based on its size, the beam is viewed as a one-dimensional model.
The science of the strength of materials deals with stress and strain resulting from the application of load to a component. Many fundamental principles of the strength of materials can be illustrated well by a straight beam.
The beam under investigation in SM-1404 can be supported in different ways. This produces statically determinate and indeterminate systems which are placed under load by up to four sets of weights. The load application points are movable. Three dial gauges record the resulting deformation. Three articulated supports with integral force gauges indicate the support reactions directly. The articulated supports are height-adjustable, so as to compensate for the influence of the deadweight of the beam under investigation.
Many beams of different thicknesses and made of different materials demonstrate the influence of the geometry and of the modulus of elasticity on the deformation of the beam under load.
The various elements of the experiment are clearly laid-out and housed securely in a storage system. The complete experimental set-up is arranged in the frame. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.