The STRENGTH of MATERIALS range enables clear and comprehensive learning of Materials and their Properties covering a variety of theories and topics. An understanding of the way in which materials act and react, is fundamental when studying the application of loads on a variety of fixed or moving structures. The STRENGTH of MATERIALS form a comprehensive range of equipment, from fixed beams through to rotating machines apparatus, equally suitable for demonstration and experimental work.

All the STRENGTH of MATERIALS hardware operates in a standalone mode, with a large number being supplied with Data Acquisition Interfaces and Software.



HSM1 Deflection of Beams Apparatus

The bench mounted apparatus has an aluminium profiled base with a fixed support at one end and a moveable support at the other. The supports can be fitted with knife edges or clamp plates one of which permits horizontal movement for an encastre (built-in) beam.

HSM1cD Advanced Beam Testing Apparatus

An unlimited range of beam experiments can be performed to measure support reactions, deflections and rotations of simply supported, fixed and two span continuous beams, simple and propped cantilevers, and sinking supports.

HSM2 Torsion of Bars

Apparatus to understand and investigate directly the relationship between the torsional load applied to a round bar and the angular twist produced and how this relationship varies with the beam material and it’s cross sectional polar moment of area. Specimens are rigidly held in a clamp fixed to one end of the bench top base frame of the apparatus.

HSM7 Extension of Springs

Springs are used in engineering to store energy or to provide restoring forces. Both compression and tension (extension) springs may be encountered. The deflection of a spring depends on the load applied to it, an observation enshrined in Hooke's Law (Within the limit of proportionality, the strain is directly proportional to the stress producing it).Applications of springs are found in spring balances which indicate loads by measuring spring deflections and in car suspensions where they absorb energy caused by wheel vertical movement due to potholes and bumps.

The HSM7 apparatus is designed to be mounted to a rigid vertical support approximately 1.5metres above floor level. It is used to test tension springs up to 200mm in length. The maximum spring diameter is 38mm.

HSM8 Compression of Springs

Springs are used in engineering to store energy or to provide restoring forces. Both compression and tension (extension) springs may be encountered. The deflection of a spring depends on the load applied to it, an observation enshrined in Hooke's Law (Within the limit of proportionality, the strain is directly proportional to the stress producing it).

Applications of springs are found in spring balances which indicate loads by measuring spring deflections and in car suspensions where they absorb energy caused by wheel vertical movement due to potholes and bumps.

HSM10 Curved Bars

The theoretical deflections of curved shapes are most easily found by applying strain energy ideas, such as Castigliano's first theorem. The shapes chosen in this apparatus provide a relatively easy introduction to the use of such techniques.

HSM11 Combined Bending and Torsion

The object of this experiment is to determine what levels of combined bending and torsion cause elastic failure in different materials, and to compare them with various theories of failure. The apparatus uses specially machined ‘necked’ specimens which are clamped at one end to the base plate and at the other end to a counterbalanced circular loading plate.

HSM15 Critical condition of Struts

A piece of material in compression is called a strut. If it is short and stubby it will fail by compressive stress, but if it is slender the failure mode is that of buckling. The load at which the strut buckles depends on the way in which the ends are restrained. Built-in ends resist buckling more than ends which are free to move. The apparatus shows how the buckling mechanism occurs, and the influence of the end restraint.

HSM18 Electrical Resistance Strain Gauge

The apparatus has been designed to illustrate the basic features of electrical resistance strain gauges and their application in measuring bending and torsion. A cantilever has a single gauge bonded onto its surface, and an identical gauge is fixed to an unstressed piece of the same material for temperature compensation.

HSM19 Rotating Fatigue Machine

This apparatus has been designed to introduce students to the effects of fatigue. A motor rotates a specimen through a gear and pulley arrangement which can be adjusted. During the rotation the specimen is subject to sinusoidal variation of bending stress.

HSM19D Rotating Fatigue Machine (Digital)

This apparatus has been designed to introduce students to the effects of material fatigue. A motor rotates a specimen through a gear and pulley arrangement which can be adjusted. During the rotation the specimen is subject to sinusoidal variation of bending stress. Loads are applied to the test specimen using a screw jack loading mechanism with integral load cell. When failure occurs, a microswitch stops the motor and the cycles to failure are registered on a revolution counter. A safety guard shields all rotating parts. The apparatus is mounted on a heavy base plate. Specially machined necked test specimens are provided.

HSM30 Unsymmetrical Cantilever Apparatus

This apparatus allows the vertical and horizontal deflections of the free end of a test specimen to be measured when loading occurs along a principle axis or at a known angle.

HSM31 Torsion Testing Machine (30Nm)

A sturdy bench mounted unit for studying applied torque against angle of twist, specimen failure, and test graphs. Torque is applied via the moment head to differing material test specimens using hand operated worm and wheel gearbox.

HSM34 Creep Testing Machine

A sturdy bench top mounted unit for studying the affect of creep on different material test specimens. Necked test specimens are held vertically in position on special clamps, which do not induce bending during loading. A lever arm transmits the load from a load hanger and weights into the specimen and the lever arm has a counter balance weight to ensure the lever arm self weight is calibrated out.

HSM35 Torsion and Deflection Testing Apparatus

This bench top unit allows a variety of experiments to be undertaken to investigate test specimens under torsional loading and bending loading within their elastic limits.

The students cover topics involving bending moment equation, torsional rigidity, modulus of rigidity, angle of twist, and create graphs and compare actual measured values with theoretical values using formulae and theory provided.

HSM41 Pendulum Impact Tester (25J)

A sturdy bench top mounted unit for the study of notched bar (Charpy) impact strength tests.

A sturdy base plate with protective guard surround houses all the components, the guard has a lockable door for ease of access when setting the test but also security whist not in use. The base plate has an anvil and pillar which have replicable impact profiles for supporting the notched specimens prior to testing.

HSM51 Rockwell/Brinel combined Hardness Tester

This combined hardness tester is designed for measuring hardness of metals and alloys of all types (hard and soft). The specimens can be flat, or round and irregular in shape. The hardness tester is bench mounted unit. The principle of operation is based around a lever and weights.

HSM56 Extension and Compression of Springs

A wall mounted vertical bracket houses two independent mechanisms side by side for testing tension and compression springs. The left hand side tests tension springs whilst the right hand side tests compression spring.

HSM58 Universal Materials Tester (20kN)

Universal Material Tester allowing tests to undertaken on specimens in Tension, Compression, Shear, and Bending. The apparatus comes supplied with a Digital Interface and Data Acquisition Software as standard. A variety of optional modules are available which covers tests such as Brinell Hardness, Cupping, Spring Testing, and many more.

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