STRUCTURAL PART FOR A TRUCK, COMPRISING A BEAM MADE OF FIBER-REINFORCED PLASTIC

The invention relates to a structural part (50) for a truck, comprising : a beam (10) made of fiber-reinforced plastic, the beam (10) having a I-shaped cross-section, the beam (10) comprising a web (3) extending from a first flange (1) to a second flange (2), in which a cross-section of the web (3) comprises : - a first portion (5) with a first thickness (T1), - a second portion (6) with a second thickness (T2), the second thickness (T2) being larger than the first thickness (T1), and - a third portion (7) with a third thickness (T3), the third thickness (T3) being smaller than the second thickness (T2), in which the second portion (6) is located between the first portion (5) and the third portion (7).