Quick Answer
Paracord does stretch under heavy load, but its elasticity is limited and depends on the specific type and quality of the cord.
Material Properties
Paracord is made from nylon, which has a moderate level of elasticity. It can stretch up to 20-30% of its original length before breaking, but this value can vary depending on the specific type of nylon and the manufacturing process. For example, 550-cord, a common type of paracord, has a tensile strength of around 550 pounds, but its elasticity is relatively low compared to other cord types.
Load Distribution
When subjected to heavy load, paracord can start to stretch, but it’s essential to distribute the load evenly to prevent uneven wear and tear. A good rule of thumb is to keep the load within 20-50% of the cord’s maximum tensile strength. For example, if you’re using 550-cord to create a makeshift tow line, you should aim to keep the load below 275-275 pounds (50% of 550 pounds). This will help prevent the cord from breaking under stress.
Practical Applications
In practical survival situations, it’s essential to consider the limitations of paracord when using it for load-bearing applications. For example, when creating a makeshift harness or securing a load, you should use multiple strands of paracord or tie multiple knots to distribute the load evenly. This will help prevent the cord from breaking under heavy load and reduce the risk of injury or equipment failure.
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