Paul Robinson

TL;DR: In this article, a method of analysis is presented for determining the free vibration frequencies of cylindrically curved laminated panels under general edge conditions, and is implemented in a layerwise optimization (LO) scheme to determine the optimum fiber orientation angles for the maximum fundamental frequency.

TL;DR: In this paper, the elasto-plastic response of the matrix and possibility of tow/matrix debonding were modelled and a numerical model of a 2 × 2 twill reduced unit cell was developed, where the material is assumed to fail after failure of the tows is detected using maximum-stress and/or physically-based failure criteria.

TL;DR: In this paper, an analytical model to predict fiber kinking and splitting in CFRP under combined longitudinal compression and in-plane shear is presented, based on the fracture mechanics of microcracks and split formation between the fibres during kink-band formation or splitting.

TL;DR: In this article, the propagation of delamination in shear mode II between internal ply surfaces in a laminated composite plate is investigated, theoretically and experimentally, by considering two special cases the problem is approximated as an axisymmetric model amenable to analytical solutions.

TL;DR: In this paper, a phenomenological-based, strain rate dependent failure theory was proposed for the numerical modeling of unidirectional (UD) carbon fiber reinforced polymer composites (CFRPs).