In-situ dynamic response measurement for damage quantification of 3D printed ABS cantilever beam under thermomechanical load

Hamzah Baqasah, Feiyang He, Behzad A. Zai, Muhammad Asif, Kamran A. Khan, Vijay K. Thakur*, Muhammad A. Khan

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Acrylonitrile butadiene styrene (ABS) offers good mechanical properties and is effective in use to make polymeric structures for industrial applications. It is one of the most common raw material used for printing structures with fused deposition modeling (FDM). However, most of its properties and behavior are known under quasi-static loading conditions. These are suitable to design ABS structures for applications that are operated under static or dead loads. Still, comprehensive research is required to determine the properties and behavior of ABS structures under dynamic loads, especially in the presence of temperature more than the ambient. The presented research was an effort mainly to provide any evidence about the structural behavior and damage resistance of ABS material if operated under dynamic load conditions coupled with relatively high-temperature values. A non-prismatic fixed-free cantilever ABS beam was used in this study. The beam specimens were manufactured with a 3D printer based on FDM. A total of 190 specimens were tested with a combination of different temperatures, initial seeded damage or crack, and crack location values. The structural dynamic response, crack propagation, crack depth quantification, and their changes due to applied temperature were investigated by using analytical, numerical, and experimental approaches. In experiments, a combination of the modal exciter and heat mats was used to apply the dynamic loads on the beam structure with different temperature values. The response measurement and crack propagation behavior were monitored with the instrumentation, including a 200x microscope, accelerometer, and a laser vibrometer. The obtained findings could be used as an in-situ damage assessment tool to predict crack depth in an ABS beam as a function of dynamic response and applied temperature.

Original languageEnglish
Article number2079
JournalPolymers
Volume11
Issue number12
Early online date12 Dec 2019
DOIs
Publication statusPrint publication - 12 Dec 2019
Externally publishedYes

Keywords

  • Acrylonitrile butadiene styrene
  • Cantilever beam
  • Crack propagation
  • Dynamic response
  • Fatigue
  • FDM
  • Fused deposition modeling
  • Fused filament fabrication
  • Modal analysis

Fingerprint Dive into the research topics of 'In-situ dynamic response measurement for damage quantification of 3D printed ABS cantilever beam under thermomechanical load'. Together they form a unique fingerprint.

  • Profiles

    No photo of Vijay Kumar Thakur

    Vijay Kumar Thakur

    Person: Academic contract that is research only

    Cite this