7.3.1. Extensional Stiffness

Reference: Abbott, Richard. Analysis and Design of Composite and Metallic Flight Vehicle Structures 3 Edition, 2019

For a member with a constant cross section the following expression applies:

**Figure 7.3.1‑1: Simple Extensional Stiffness**

The expression for Stiffness can easily be derived as:

7.3.1. Extensional Stiffness

Reference: Abbott, Richard. Analysis and Design of Composite and Metallic Flight Vehicle Structures 3 Edition, 2019

For a member with a constant cross section the following expression applies:

**Figure 7.3.1‑1: Simple Extensional Stiffness**

The expression for Stiffness can easily be derived as: