What design elements reduce stress concentrations in WPC armchair frames?

Stress concentrations in Wood-Plastic Composite (WPC) armchair frames can lead to structural weaknesses and reduced longevity. To mitigate this, several design elements are critical:

1. Rounded Corners and Smooth Transitions: Sharp edges create stress points. Curved designs distribute forces evenly.

2. Reinforced Joints: Strengthening high-stress areas like armrest connections with additional material or metal inserts improves load-bearing capacity.

3. Optimal Material Thickness: Thicker WPC sections in stress-prone zones prevent deformation under pressure.

4. Ergonomic Shape: Contours that align with natural body weight distribution reduce localized stress.

5. Uniform Load Distribution: Strategic ribbing or lattice structures disperse forces across the frame.

By integrating these elements, WPC armchairs achieve greater durability and user comfort, making them ideal for long-term use.