PulseExploreJournal ClubResearchersJournals
Instagram
HomeJournal ClubExplore
Synapse
⌘+K
Synapse
April 8, 2026Polymer Composites

Natural‐Frequency‐Based Life Prediction of Glass/Epoxy Composite Laminates Using A Modified Progressive Fatigue Damage Model

View Full Paper
Ask AI
Bookmark
Share

Authors

PVPouya ValizadehAZAhad ZabettJRJalil Rezaeepazhand

Discussion

Loading...

Member takes

Overview

A modified fatigue damage model predicts stiffness degradation in glass/epoxy composites, suggesting non-destructive assessment methods.

Key Points

  • This research aims to improve predictions of stiffness degradation in glass/epoxy composite laminates under fatigue using a modified model.
  • Modified the Shokrieh‐Lessard model to replace the fourth-degree stiffness degradation law with a cubic formulation.
  • Conducted modal analysis on fatigued specimens before and after cycling to analyze stiffness and frequency relationships.
  • Implemented the modified model into a PFDM framework using a UMAT subroutine in ABAQUS for simulations.
  • Achieved a statistical agreement of R^2 = 0.86 between the model and experimental measurements.
  • Simulations showed that the difference between simulated and measured natural frequencies remained within 2% for all data.

Cite This Study

Valizadeh et al. (2026) studied this question.

synapsesocial.com/papers/69d5f14b74eaea4b11a7ae17https://doi.org/10.1002/pc.71015
View Full Paper
Ask AI
Bookmark
Share