Stress relaxation Elasticity 3 Viscoelasticity 3 Domain walls 2 Elastic material status 2 Elastic materials 2 Fibers 2 Grain boundaries 2 Kerr-Effect microscope 2 Magnetic domains 2 Magnetic fields 2 Magneto-optical Kerr effects 2 Magneto-optical kerr effect microscope 2 Mechanical behaviour 2 Nondestructive examination 2 Optical Kerr effect 2 Palm oil 2 Plastic material status 2 Plastic materials 2 Relaxation time 2 Repeatability and stability 2 Residual magnetic field 2 Residual magnetic fields 2 Silicon steel 2 Stability 2 Stress analysis 2 Stress measurement 2 Unloading 2 Viscoelastic modeling 2 elastic material status 2