Accession Number:

ADA612838

Title:

Dynamic Evaluation of Acrylonitrile Butadiene Styrene Subjected to High-Strain-Rate Compressive Loads

Descriptive Note:

Final rept. 1 Jun-Aug 2013

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

• Peterson, Alex
• Habtour, Ed
• Riddick, Jaret
• Coatney, Michael
• Bolling, Denzell
• Owolabi, Gbadebo

Report Date:

2014-12-01

Pagination or Media Count:

20.0

Abstract:

The current goal of the investigation is to understand the potential energy absorption benefits of components fabricated using fused deposition modeling additive manufacturing. Tensile test specimens were fabricated according to the ASTM D 638 standard to characterize the general mechanical behavior of the three-dimensional printed acrylonitrile butadiene styrene ABS material to assess potential strain-rate dependency. The dynamic responses were also necessary to characterize the dynamic evolution of ABS in compression at various strain rates. The ABS specimens were subjected to high-strain-rate deformation using the split-Hopkinson pressure bar. A new phenomenon, described as a multistage collapse in which the samples undergo multiple stages of compression and expansion, was observed during compression. As the velocity increased, the capability for energy absorption decreased to where there was only one stage of compression equivalent to the initial stage.

Descriptors:

• *ACRYLONITRILE POLYMERS
• *BUTADIENES
• COMPRESSION
• DEFORMATION
• DYNAMIC RESPONSE
• DYNAMICS
• ENERGY ABSORBERS
• HIGH RATE
• MATERIALS
• MECHANICAL PROPERTIES
• POTENTIAL ENERGY
• SAMPLING
• STRAIN RATE
• STYRENES
• TENSILE TESTERS
• TEST AND EVALUATION
• VELOCITY

Subject Categories:

• Organic Chemistry
• Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE