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The lagging behind of strain is called ____________

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Last updated date: 20th Jun 2024
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Answer
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Hint: We know that strain is simply the measure of how much an object is stretched or deformed. Strain occurs when force is applied to an object. Strain is the change in length divided by the initial length. Stress-strain curves describe the elastic and inelastic properties of materials by showing how a material like steel responds to applied force. The uniaxial tensile test is typically used for studying stress and strain. It refers to the quantification of the alteration or expansion a body undergoes to when subjected to a force or set of forces. The normal strain of a body is generally expressed as the ratio of total displacement to the original length.

Complete step by step answer
It is known that hysteresis is the dependence of the state of a system on its history. For example, a magnet may have more than one possible magnetic moment in a given magnetic field, depending on how the field changed in the past. Hysteresis is important because it represents a natural method of storing information in a circuit. Some simple examples are ferroelectric materials and rubber bands. You can sometimes have a magnetic material which is not initially magnetic
We know that the lagging behind the strain is called elastic hysteresis. Elastic Hysteresis is the difference between the strain energy required to generate a given stress in a material, and the material's elastic energy at that stress. This energy is dissipated as internal friction (heat) in a material during one cycle of testing (loading and unloading).

NoteWe know that hysteresis is defined as the deviation of the contact angle from its theoretical (and mean) value due to physical phenomena like microscopic surface defects and roughness. Hysteresis loss can be reduced by using material having least hysteresis loop area. Hence silicon steel or high-grade steel is used for manufacturing of a transformer core as it is having very less hysteresis loop area. Hysteresis in a ferromagnetic material; the lag in the response of magnetic induction to changes of magnetic intensity. The hysteresis loop tells us information about the magnetic properties of a material, showing the relationship between the induced magnetic flux density (B) and the applied magnetics force (H). Examining the size and shape of the hysteresis loop tells us what kind of material we have.