An experimental setup for characterizing subcritical debonding of materials interface under mixed mode fatigue loading

Tz Cheng Chiu, Wei Lu, Chi An Hua

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A mixed mode bending experimental setup was developed for quantifying the subcritical debonding growth behavior for materials interfaces under a full spectrum of loading mode mixity. In the experimental system, the control program calculates and adjusts the cyclic bending forces to maintain a constant phase angle at the prescribed value. The relationship between the subcritical crack growth rate and the applied strain energy release rate range is obtained by post-processing the experimental results with analytical formulas. As a preliminary application example, a phase-angle dependent power-law model was constructed for the subcritical debonding growth rate of the Al-epoxy interface. It was observed that both the logarithm of the scaling constant and the power-law exponents of the subcritical debonding growth model exhibit linear relationships with the phase angle.

Original languageEnglish
Pages (from-to)109-119
Number of pages11
JournalInternational Journal of Fatigue
Volume114
DOIs
Publication statusPublished - 2018 Sep

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'An experimental setup for characterizing subcritical debonding of materials interface under mixed mode fatigue loading'. Together they form a unique fingerprint.

Cite this