Tension

Definition

Tension refers to the stress that tends to elongate a structural member.

Purpose

Tension is a critical concept in engineering and construction, as it describes the forces that pull or stretch a material. Understanding tension helps in designing structures that can withstand such forces without failure.

Examples of Use

1. Suspension Bridges: Cables in suspension bridges are under tension, supporting the bridge deck and transferring loads to the towers.
2. Tensile Structures: Fabric structures like tents and pavilions rely on materials in tension to create stable, lightweight covers.
3. Reinforced Concrete: The steel reinforcement in concrete is placed to resist tensile forces, preventing cracks and structural failure.

Related Terms

• Compression: The opposite of tension, where forces tend to shorten or compress a material.
• Shear Stress: Stress that causes layers of material to slide past each other.
• Elasticity: The ability of a material to return to its original shape after being stretched or compressed.

Notes

• Analysis: Engineers analyze tension in structural members to ensure they are designed to handle expected loads safely.
• Material Behavior: Different materials respond differently to tension, and understanding these properties is crucial for safe design.