Characterization of dynamic damage mechanisms in Palmetto wood as biological inspiration for impact resistant polymer composites

Haldar, Sandip; Bruck, Hugh A.

doi:10.1016/j.mechmat.2012.10.011

Cited by 10 publications

(3 citation statements)

References 39 publications

(48 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Naturally, classical deformation measurement techniques in mechanical tests using extensometers fail to provide sufficient information on strain field evolution, both in static and in dynamic deformation modes. 22–25 Consequently, more precise instruments to obtain information on strain field kinetics shall be used for analysis of a complex process such as DNP. To this end, the authors have applied an original software solution 26,27 for non-contact study of strain field using a method of DIC, 28–32 in this study fitted with a high-speed Phantom v711 camera.…”

Section: Research Techniquesmentioning

confidence: 99%

Strain field evolution on the surface of aluminum sheet alloys exposed to specific impact with oscillation loading

Чаусов

Berezin

Pylypenko

et al. 2014

The Journal of Strain Analysis for Engineering Design

View full text Add to dashboard Cite

Strain field evolution on the surface of aluminum sheet D16 and 2024-T3 alloys has been analyzed during static deformation and during specific high-speed impact and oscillation loading-dynamical non-equilibrium process. Experiments have been conducted using an original mechanical testing technique and a specially developed software solution for noncontact study of strain field using digital image correlation fitted with a high-speed camera. It has been established that deformation process kinetics for tested aluminum alloys after a dynamical non-equilibrium process during further static deformation changes as compared with a process of static deformation mainly manifests itself in the increase in general alloy ductility and delay in ''neck formation.'' It has been shown that strain field is an important indicator for deformation band structure formation in the tested materials.

show abstract

Section: Research Techniquesmentioning

confidence: 99%

Strain field evolution on the surface of aluminum sheet alloys exposed to specific impact with oscillation loading

Чаусов

Berezin

Pylypenko

et al. 2014

The Journal of Strain Analysis for Engineering Design

View full text Add to dashboard Cite

show abstract

“…As a successful historical application in protective structures, wood has been studied as a potential bioinspiration to design engineering composites with enhanced mechanical behaviors. 39–41 Wood is made of macro-fiber reinforcements embedded in a softer porous matrix and the macro-fibers are bundles of micro-fibers of approximately hexagonal tubular shapes. 40 Numerical models have been developed to estimate and analyze the fracture, damage, and failure of the materials.…”

Section: Fe Models For Nfsmentioning

confidence: 99%

Finite element models of natural fibers and their composites: A review

Xiong

Shen

Hua

et al. 2018

Journal of Reinforced Plastics and Composites

View full text Add to dashboard Cite

Finite element method has been widely applied in modeling natural fibers and natural fiber reinforced composites. This paper is a comprehensive review of finite element models of natural fibers and natural fiber reinforced composites, focusing on the micromechanical properties (strength, deformation, failure, and damage), thermal properties (thermal conductivity), and macro shape deformation (stress–strain and fracture). Representative volume element model is the most popular homogenization-based multi-scale constitutive method used in the finite element method to investigate the effect of microstructures on the mechanical and thermal properties of natural fibers and natural fiber reinforced composites. The representative volume element models of natural fibers and natural fiber reinforced composites at various length scales are discussed, including two types of geometrical modeling methods, the computer-based modeling method and the image-based modeling method. Their modeling efficiency and accuracy are also discussed.

show abstract

“…The polymer sandwich structures [17][18][19][20][21] and FML-reinforced sandwich plates 22 were also studied. Haldar et al 20,21 established the methodology to elucidate the failure mechanisms of Palmetto wood under quasi-static loading and dynamic loading using low velocity impact. A advanced technique known as digital image correlation (DIC) was chosen for full-¯eld deformation measurements under mechanical loading.…”

Section: Introductionmentioning

confidence: 99%

Low Velocity Penetration Mechanical Behaviors of Aluminum Foam Sandwich Plates at Elevated Temperature

Tang

et al. 2015

Int. J. Str. Stab. Dyn.

View full text Add to dashboard Cite

This paper presents the low-velocity impact tests on the sandwich plates with aluminum foam core and aluminum skins at elevated temperatures. A furnace, attached to an Instron Dynatup 9250 HV drop hammer system, was designed to accomplish the penetration tests at temperatures up to 500°C. In order to process the experimental data accurately, the numerical vibration analysis was conducted to determine the threshold frequencies of the fast Fourier transform (FFT) filter for the original impact data. The experimental results showed that the failure modes of the sandwich, peak load and absorbed energy varied obviously with temperatures. Furthermore, the results showed that the failure modes of the top skin and metal foam core showed minor changes with respect to temperatures. Whereas the failure mode of the bottom skin and peak loads changed significantly with respect to temperatures. Also, the absorbed energy revealed a three-stage variation with the change of temperature.

show abstract

Characterization of dynamic damage mechanisms in Palmetto wood as biological inspiration for impact resistant polymer composites

Cited by 10 publications

References 39 publications

Strain field evolution on the surface of aluminum sheet alloys exposed to specific impact with oscillation loading

Strain field evolution on the surface of aluminum sheet alloys exposed to specific impact with oscillation loading

Finite element models of natural fibers and their composites: A review

Low Velocity Penetration Mechanical Behaviors of Aluminum Foam Sandwich Plates at Elevated Temperature

Contact Info

Product

Resources

About