Next Article in Journal
Investigation of the Effect of Molybdenum Silicide Addition on the Oxidation Behavior of Hafnium Carbonitride
Next Article in Special Issue
Comparative Analysis of ANN-MLP, ANFIS-ACOR and MLR Modeling Approaches for Estimation of Bending Strength of Glulam
Previous Article in Journal
Use of Sewage Sludge for the Substitution of Fine Aggregates for Concrete
Previous Article in Special Issue
Development of Prediction Models for the Torsion Capacity of Reinforced Concrete Beams Using M5P and Nonlinear Regression Models
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

On the Influence of Fatigue Damage in Short-Fibre Reinforced Thermoplastic PBT GF30 on Its Residual Strength under High Strain Rates: An Approach towards Simulative Prediction

Engineering Design, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
*
Author to whom correspondence should be addressed.
J. Compos. Sci. 2023, 7(1), 23; https://doi.org/10.3390/jcs7010023
Submission received: 16 December 2022 / Revised: 3 January 2023 / Accepted: 6 January 2023 / Published: 10 January 2023
(This article belongs to the Special Issue Characterization and Modelling of Composites, Volume III)

Abstract

Only by using accurate material data can precise simulation results be achieved. This principle also and especially applies in the field of crash simulation. However, in the simulation of short-fibre reinforced thermoplastics, material parameters are usually used that originate from the material testing of as-new samples. In order to get closer to the condition on the roads, where not only new vehicles are driving, the influence of service loads on the crashworthiness has to be investigated. This paper reports on studies of PBT GF30, a polybutylene terephthalate reinforced with 30% glass fibres, in which fatigue damage was induced in the material by cyclic loading. The residual strength was then determined in a high-speed experiment and compared with the strength of virgin samples. In order to enable the usability of the findings in the simulation, a modified failure criterion was implemented that takes the previous fatigue damage into account. The prediction quality of the simulation model was compared with the experimental findings and it can be concluded that there is good agreement.
Keywords: short fibre reinforced thermoplastics; SFRT; fatigue damage; crashworthiness; failure modelling short fibre reinforced thermoplastics; SFRT; fatigue damage; crashworthiness; failure modelling

Share and Cite

MDPI and ACS Style

Witzgall, C.; Steck, P.; Wartzack, S. On the Influence of Fatigue Damage in Short-Fibre Reinforced Thermoplastic PBT GF30 on Its Residual Strength under High Strain Rates: An Approach towards Simulative Prediction. J. Compos. Sci. 2023, 7, 23. https://doi.org/10.3390/jcs7010023

AMA Style

Witzgall C, Steck P, Wartzack S. On the Influence of Fatigue Damage in Short-Fibre Reinforced Thermoplastic PBT GF30 on Its Residual Strength under High Strain Rates: An Approach towards Simulative Prediction. Journal of Composites Science. 2023; 7(1):23. https://doi.org/10.3390/jcs7010023

Chicago/Turabian Style

Witzgall, Christian, Patrick Steck, and Sandro Wartzack. 2023. "On the Influence of Fatigue Damage in Short-Fibre Reinforced Thermoplastic PBT GF30 on Its Residual Strength under High Strain Rates: An Approach towards Simulative Prediction" Journal of Composites Science 7, no. 1: 23. https://doi.org/10.3390/jcs7010023

APA Style

Witzgall, C., Steck, P., & Wartzack, S. (2023). On the Influence of Fatigue Damage in Short-Fibre Reinforced Thermoplastic PBT GF30 on Its Residual Strength under High Strain Rates: An Approach towards Simulative Prediction. Journal of Composites Science, 7(1), 23. https://doi.org/10.3390/jcs7010023

Article Metrics

Back to TopTop