Topic
Sandwich-structured composite
About: Sandwich-structured composite is a research topic. Over the lifetime, 5853 publications have been published within this topic receiving 101126 citations.
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TL;DR: In this article, a finite element study on the impact response of sandwich panels was performed using the LSDYNA software enabling to account for the main sandwich failure modes occurring during impact, which was validated using the results from experimental impact tests performed on different initial impact conditions.
59 citations
TL;DR: In this paper, the effects of elevated temperature on the shear response of polyethylene terephthalate (PET) and polyurethane (PUR) foams used in composite sandwich panels are investigated.
59 citations
TL;DR: In this article, the minimum weight design of a foam core sandwich beam or plate of a given strength by constraining the face and core to fail simultaneously using the failure equations developed in the companion paper was found.
58 citations
TL;DR: In this article, the impact response of sandwich specimens with FML skins and polyurethane foam was investigated by experimental and numerical approaches using LS-DYNA to model impact of cylindrical projectile with clamped boundary condition.
58 citations
TL;DR: In this paper, the shear stiffness in the weaker direction for C-core sandwich panels is derived and studied, taking into account the contact interaction between the facing plates and the flanges of the c-core stiffeners.
Abstract: A C-core sandwich panel consists of two facing plates connected top and bottom to a core of C-shaped stiffeners. Sandwich panels of this type have high bending and shear-stiffness characteristic in the direction of the core. In the transverse direction, however, both stiffness properties are relatively weak, in particular the shear stiffness. In this paper, the shear stiffness in the weaker direction for C-core sandwich panels is derived and studied. Due to the geometry and discontinuity of the core configuration, the shear stiffness in the weaker direction must be derived from the first principle. By assuming the recurrence condition, the writers previously derived an approximate expression for the shear stiffness in the weaker direction. The work described here presents a more accurate formulation, taking into account the contact interaction between the facing plates and the flanges of the C-core stiffeners. The compatibility equations are obtained from Castigliano's second theorem. The shear strain of ...
58 citations