Giorgio Simeoli

TL;DR: In this paper, impact tests with a falling dart and flexural measurements were carried out on polypropylene based laminates reinforced with glass fibers fabrics, and it was shown that the improved adhesion between fibers and matrix weakly affects the flexural modulus but strongly influences the ultimate properties of the investigated woven fabric composites.

TL;DR: In this article, the low velocity impact behavior of composites made of polypropylene (PP) as matrix and glass fibre fabric as reinforcement has been investigated, and two PP grades, differing for their melt flow index, have been used as matrix, and maleic anhydride has been used to manage the polymer/glass fibre interface strength.

TL;DR: In this article, the authors highlight the help offered by infrared thermography in the investigation of impact damaging of composites, and show that the presence of the compatibilizing agent in the thermoplastic matrix prevents the material from large deformation bringing it to behave more similar to a thermoset matrix based material.

TL;DR: In this article, a new design for thermoplastic composites based on the gradation of the interlaminar interface strength (IGIS) has been developed with the aim of coupling high impact resistance with high static properties.

TL;DR: In this paper, an ultrasonic technique is used to investigate the delamination caused by low velocity impact tests, on plates obtained by typical film stacking and compression molding techniques, and a linear relationship between the delaminated area, the energy and the indentation depth was found.