Relationship between load and deflection

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When a load is applied to a beam, deflection occurs, indicating the beam's response to the load. A minimal deflection suggests that the beam is stiff, demonstrating a linear relationship between load and deflection. This linearity is primarily valid for low strains, meaning that as the load increases beyond a certain point, the relationship may no longer hold true. Further explanation could involve discussing the material properties and the limits of elasticity. Understanding these concepts is crucial for applications in structural engineering and design.
jon1984
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Hi,

Below is a very simple answer as to what happens to a beam when it has a load applied.

"When a load is applied to a beam, delfection occours. If not much deflection, then object is stiff. Linear relationship."

How could i further explain this, or is this simple enough?
 
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The linear relationship really only holds true for low strains.
 

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