The Role of Rubber Modification in Improving High Rate Impact Resistance

Roylance, Margaret; Roylance, David; Sultan, Jacques N.

doi:10.1021/ba-1976-0154.ch016

Cited by 6 publications

(2 citation statements)

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“…In rubber-modified acrylic plastics containing 0-13 percent rubber, high-speed impact can lwd to wave propagation and spallation. This was simulated, correlated, and predicted at lower speeds (0.02-10.0 in./miii) by low-temperature (0-75°C) yield and fracture studies (22 ). When epoxy resin and n-butyl acrylate rubber were simultaneously polymerized to forin inter-penetrating networks, spherical rubber particles gave greater toughness than elliptical particles (24).…”

Section: Low-speed Studiesmentioning

confidence: 81%

Toughness and brittleness of plastics: A summary of an ACS/SPE symposium

Deanin

1976

Polymer Engineering & Sci

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A recent and joint ACS/SPE symposium featured 40 papers on the fundamental mechanism of brittle fracture, low‐speed crazing and fracture, high‐speed impact mechanisms, fatigue failure, multi‐phase polymer systems, and reinforcing fibers. A survey of these papers indicates the present state of our knowledge in this field, and the rapid progress it is making toward the development of high‐performance plastic materials.

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Section: Low-speed Studiesmentioning

confidence: 81%

Toughness and brittleness of plastics: A summary of an ACS/SPE symposium

Deanin

1976

Polymer Engineering & Sci

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“…Polyurethane foam (RPF) layers used to retrofit the sandwich armed steel doors were shown to be an effective tool to resist the blast wave propagation [15]. Experimental investigations showed that rubber coating provides additional damping for the model, which is helpful in reducing high -frequency response [16]. Rubber modification can suppress spallation, markedly improving high rate impact resistance [17].…”

Section: Introductionmentioning

confidence: 99%

Numerical study of lightweight sandwich panels under explosion using rigid polyurethane foam and vulcanized rubber

Rashad

El–Wahab²,

Mahfoz

et al. 2012

The International Conference on Civil and Architecture Engineer

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Structural weight reduction is one of the main design objectives in structural engineering. Various concepts have been proposed to reduce weight of military tunnels protecting layers and armored doors. Among them, application of sandwich sheets which comprise of two face sheets and low-density core materials which offers a significant weight reduction, high resistance against blast loads, and the ability to withstand repetitive blast loa ds. In this paper, numerical investigations were conducted using 3D nonlinear finite element simulations with commercial ANSYS AUTODYN software. A number of peripherally simply supported (from all sides) nonmetallic core sandwich panels with either rigid p olyurethane foam (RPF) or vulcanized rubber (VR) cores were studied. A parametric study was carried out to study the behavior of these types of sandwich panels against blast load. Different thickness for different core materials were tested namely 5, 10, 15, and 20 cm. Sandwich Panels were subjected to different blast charges of 1, 5 and 10 kg TNT at fixed standoff distance 1 meter. It was concluded that the behavior of high density RPF sandwich panel is better than that of VR sandwich panel. Using rigid polyurethane foam instead of vulcanized rubber as a core material decreases the maximum displacement by an average value 48.67 %, for the three different blast loads, which is good displacement reduction.

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