Rong Yu

• Doctor of Philosophy
• Assistant Professor at Wuxi Institute of Technology

Deck structures subjected to drop-weight low-velocity impact are critical safety elements for ships and offshore structures. Therefore, the aim of the present study is to propose experimental research on dynamic responses of deck structures composed of stiffened plates subjected to drop-weight impact of a wedge impactor. The first step was to fabri...

Mechanical behavior of strengthened re-entrant hexagonal unit cells for anti-collision ship side structures under quasi-static planar compression was conducted by experimental test and FEA in the present research. Four types of re-entrant unit cells which are strengthened by narrow rib, curved ribs, rhombic ribs and polyurethane foam were presented...

Similarity laws of scaled models of offshore platform deck structures under low velocity impact loading are proposed in the present research. The similarity laws of scaled models with different scaling factors are established in forms of dimensionless factors with consideration of flow stress differences of the materials. A dimensionless displaceme...

Mechanical behaviors of a new foam filled 2D re-entrant hexagonal honeycomb with negative Poisson's ratio under planar compression have been investigated in this paper. Re-entrant hexagonal unit cell specimens were fabricated by aluminum alloy and polyurethane foam. The deformation modes and force-displacement curves of the unit cell specimens unde...

Experimental investigations on the mechanical responses of fully clamped circular plates with prefabricated crack at room temperature and low temperature have been conducted. Initial cracks with different lengths were prefabricated by the electrical discharge machining method. Low ambient temperature was created by the liquid nitrogen in a low-temp...

A combined experimental study and numerical simulation is performed to investigate the effect of core materials on low-velocity impact behaviour of sandwich panels. Dynamic responses of three types of corrugated sandwich panels with the same geometric configurations, which consist of the same CFRP (carbon fibre-reinforced plastic) face sheets, but...

The effects of geometric configurations of corrugated cores on the local impact response and planar compression performance of sandwich panels are presented by FEM in the present research. Five sandwich panels with various corrugated cores of different geometric configurations with the same size, weight, and materials were designed. The next step w...