High strain rate performance of UHMWPE composites: Effect of moisture ingress and egress

Chouhan, Hemant; Bhalla, Neelanchali Asija; Bhatnagar, Naresh

doi:10.1016/j.mtcomm.2020.101709

Cited by 8 publications

(4 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is consistent with the findings of Luo et al [24], who studied the moisture absorption behavior of UHMWPE composites and attributed the reinforcement of tensile strength to interactions of water and heat in the hygrothermal environment. On one hand, the movement of molecular chain segments is intensified by water and heat, and the molecular chain changes from a relatively disordered state to a regular arrangement, leading to agglomeration of fine fibers [25]. On the other hand, water molecules that invade the material act as internal plasticizers.…”

Section: Mechanical Property and Fracture Morphologymentioning

confidence: 99%

Study on the Aging Behavior of an Ultra-High Molecular Weight Polyethylene Fiber Barrier Net in a Marine Environment

et al. 2022

View full text Add to dashboard Cite

In the present work, the performance of ultra-high molecular weight polyethylene (UHMWPE) barrier nets in marine environments is investigated by Fourier transform infrared spectroscopy, thermogravimetry, scanning electron microscopy, and tensile experiments. The chemical, morphological, thermal stability, and strength changes after aging in salt spray, hygrothermal, and ultraviolet (UV) environments are characterized. An environmental spectrum is designed to simulate a real service environment and predict the service life of UHMWPE. The results show that UV energy can activate UHMWPE molecules and lead to chain breaking, which lowers the breaking strength more efficiently than salt spray. In a hygrothermal environment, the UHMPE fibers bond into clumps, which causes a slight increase in breaking strength after the initial rapid decrease with aging time. The acceleration ratio of the environmental spectrum increases with increasing aging time, which may be caused by the cross-linking and degradation of macromolecular chains in the material. The environmental spectrum given by this work can be used to evaluate performance and predict the service life of UHMWPE barrier nets in marine environments.

show abstract

Section: Mechanical Property and Fracture Morphologymentioning

confidence: 99%

Study on the Aging Behavior of an Ultra-High Molecular Weight Polyethylene Fiber Barrier Net in a Marine Environment

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Hence, accounting for temperature and humidity regulations is mandatory when rubber's response at high strain rates is being investigated. 12,[23][24][25] Besides, nonreinforced elastomers are highly impacted by excessive temperature changes that might contribute to the structure's overall degradation. Since reinforcing rubbers with extra intermediate material layers enhances their stiffness and duration, following this pattern will improve their resistance to a combination of humidity and temperature regulations.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the effect of environmental conditions on high compressive strain rates in unfilled and filled neoprene rubbers

Gkouti,

Chaudhry,

Yenigun

et al. 2023

Journal of Elastomers & Plastics

View full text Add to dashboard Cite

Elastomers are known for their strain-rate-dependent properties not only to quasistatic but also to high strain rate deformations, where mechanical behavior is significantly affected by inertia. Concurrently, environmental changes, such as temperature and humidity variations, can impact their stress response to deformation. This study investigates the effects of material layers within neoprene samples on mitigating these environmental changes. While the presence of an intermediate layer proves effective against temperature and humidity influence, it fails to block the impact of increasing high strain rates. Moreover, the different humidity levels at room and elevated temperatures do not significantly alter the mechanical behavior of filled neoprene samples compared to pure neoprene. Notably, in unfilled neoprene, an increase in humidity levels, other than an absolutely dry environment, leads to a notable stress level rise at room temperature, while under elevated temperature conditions, there is a significant stress decrease with increasing humidity. However, neoprene filled with polyester/cotton or nylon displays resilience to diminishing mechanical behavior under various temperature and humidity regulations, indicating that the material layer within these samples effectively “protects” the rubbers from potential stress lapses observed in unfilled neoprene. While a high strain rate compression affects the behavior of the filled variants significantly, increasing humidity and temperature have minimal impact on their stress levels. These findings offer valuable insights into the dynamic responses of elastomers to environmental changes, highlighting the advantages of using filled rubbers in diverse applications.

show abstract

“…Few researchers studied the HSR response of thermoplastic composites considering E-glass/polypropylene [19] Kevlar/ polyethylene, [20,21] Kevlar/polypropylene, [1,22,23] and a hybrid combination of Kevlar/basalt with polypropylene, [2] UHMWPE. [24,25] In all these studies, the thermoplastic polymers considered were polyethylene, polypropylene and polyurethane.…”

Section: Introductionmentioning

confidence: 99%

Effect of weave pattern on high strain rate performance of glass/polytetrafluoroethylene composites

et al. 2022

Self Cite

View full text Add to dashboard Cite

An investigation of the effect of strain rate on the dynamic compressive behavior of glass/polytetrafluoroethylene (PTFE) composite is presented. Experimental studies were carried out on two dimensional (2D), satin weave (SW) and three dimensional (3D) woven glass/PTFE composites using split Hopkinson pressure bar (SHPB) apparatus. Commercial grades of glass/PTFE fabrics were autoclaved to prepare the composite laminates and circular specimens were cut out using a high-pressure water jet. High strain rate studies confirmed the rate-dependent behavior of all the woven composite systems under consideration. The highest rates of loading were attained by 3D woven specimens for identical incident energies. The highest peak stress attained by 3D woven specimens was 501 MPa, which was trailed by 2D woven specimens with 482 MPa stress. The advantage of satin weave was not reflected in the small specimens as the peak stress attained for identical loading was limited to 405 MPa. Similarly, the highest strain and toughness were recorded for 3D woven composites. However, the SW pattern unlocked a new possibility of controlling the primary damage axis. Furthermore, an analytical method is presented based on variable rate power law to predict the dynamic compressive stress of glass/PTFE.

show abstract

High strain rate performance of UHMWPE composites: Effect of moisture ingress and egress

Cited by 8 publications

References 40 publications

Study on the Aging Behavior of an Ultra-High Molecular Weight Polyethylene Fiber Barrier Net in a Marine Environment

Study on the Aging Behavior of an Ultra-High Molecular Weight Polyethylene Fiber Barrier Net in a Marine Environment

Evaluating the effect of environmental conditions on high compressive strain rates in unfilled and filled neoprene rubbers

Effect of weave pattern on high strain rate performance of glass/polytetrafluoroethylene composites

Contact Info

Product

Resources

About