Flitch beam design (steel plate + timber).

Enter the timber sections and the steel flitch plate, and Volex Anvil designs the composite flitch beam by the transformed-section method: the combined bending stiffness EI, the share of moment taken by the plate and the timber, the stress in each material, and the deflection.

Flitch beams are a common way to strengthen timber in refurbishment; the transformed-section analysis follows Ozelton & Baird, 'Timber Designers' Manual', so load sharing and deflection match the standard reference.