Effect of block copolymer nano-reinforcements on the low velocity impact response of sandwich structures
type: Dataset
description: Sandwich composites with fibre reinforced plastic (FRP) facesheets have emerged as a major class of lightweight structural materials in a wide range of engineering fields including aerospace, automotive and marine structures. This is due to attractive mechanical properties such as high specific stiffness and high strength. However, sandwich structures are susceptible to damage caused by impact. The objective of this paper is to evaluate the dynamic response of sandwich composites based on Kevlar fibre reinforced epoxy and Rohacell foam. The improvement in impact performance of these sandwich structures that can be achieved by the addition of nanoparticles in the resin matrix is investigated. Nanostrength, an acrylate triblock copolymer that self-assembles in the nanometer scale is added to the epoxy matrix. The effect of the nano-reinforcements on flat sandwich plates under low velocity impact is investigated at different scales. An instrumented drop tower setup is used for the low velocity impact tests of the sandwich plates with neat or nano-reinforced epoxy matrix, at different energies. The macroscopic response of the sandwich structure and the microscopic phenomena involved in dissipating the impact energy are identified and compared for sandwich plates with and without nanoparticles.
landing page: 0263-8223
keyword: block-copolymer
keyword: drop-tower
keyword: infoeu-reposemanticsarticle
keyword: journal-articles
keyword: kevlar
keyword: low-velocity-impact
keyword: physmecamsmecaphysics-physicsmechanics-physicsmaterials-and-structures-in-mechanics-physi
keyword: sandwich
keyword: spimatengineering-sciences-physicsmaterials
keyword: spimecaengineering-sciences-physicsmechanics-physicsmed-ph
keyword: spimecamsmecaengineering-sciences-physicsmechanics-physicsmed-phmaterials-and-structures
issued: 2026-05-07T14:34:06.238647
modified: 2026-05-07T14:34:06.238651
language: en
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Effect of block copolymer nano-reinforcements on the low velocity impact response of sandwich structures
type: Distribution
format: HTML
access URL: https://hal.science/hal-00925232
issued: 2026-05-07T14:34:06.244887
modified: 2026-05-07T14:34:06.226371