When designing a product, it’s essential to ensure that materials and components can withstand the forces and stresses they’ll experience during use. Some materials on their own may not be strong or stiff enough to provide sufficient structural integrity. That’s why designers reinforce or stiffen them using specific techniques.
Reinforcement involves strengthening a material or component to resist bending, compression, impact, or tension. Stiffening improves rigidity, preventing excessive flexing or deformation.
| Technique | How it works | Common Uses |
|---|---|---|
| Adding ribs/webbing | Thin walls are reinforced with perpendicular ribs that distribute stress and increase stiffness | Injection-moulded plastic casings, electronics housings |
| Laminating | Layers of materials are bonded together to create a stronger, more stable composite | Plywood, laminated safety glass, skateboards |
| Corrugation | Folding material into a wavy pattern adds strength in one direction while keeping weight low | Cardboard packaging, roofing sheets |
| Reinforcing with composite fibres | Materials like carbon or glass fibres are added to plastic resin to increase tensile strength | Sports equipment, aerospace and automotive parts |
| Advantages | Disadvantages |
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