Shape memory material actuator

A shape memory material inductive heating arrangement comprising an array of coils 118 capable of carrying an alternating electrical current and generating a magnetic field, a shape memory element 110, 64 having a first modulus and a second modulus, the second modulus greater than the first, characterised in that the array of coils 118 and shape memory element 110, 64 are in effective range so that when an alternating current is passed through the coils 118 the shape memory element 110, 64 is subject to the magnetic field and heated thereby, the induced heat sufficient to change the modulus of the shape memory material from the first to the second modulus.