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Mechanical Stimulation of Chondrocyte-agarose Hydrogels
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Mechanical Stimulation of Chondrocyte-agarose Hydrogels

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The dramatic influence of loading velocity on the compressive response of articular cartilage

A Oloyede1, R Flachsmann, N D Broom

  • 1Department of Mechanical Engineering, University of Auckland, New Zealand.

Connective Tissue Research
|January 1, 1992
PubMed

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Normal strain under axial loading is an important concept in the field of mechanics of materials. Axial loading implies the application of a force along the axis of a material, like a column or bar. This force can either compress or stretch the material. In the context of axial loading, normal strain is the deformation experienced by the material in the direction of the loading force. It's calculated as the change in length divided by the original length of the material. This unitless ratio...
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A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and reloaded.
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When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
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