Abstract
Lightweight laminate composite sandwich-like materials are one of the most used composite materials. When a laminate composite is punched normally to the surface, the outer skin layer plays a protective role, which is studied in the present work by elucidating the corresponding stress distribution in the core. First, a theoretical framework is developed to predict the stress distribution in the core corresponding to different mechanical properties of the skin. Thus, the location of the highest stress is predicted and a potential failure domain in the core of the laminate composite is established. The theory is verified by novel photoelastic experiments developed and conducted in this work. In addition, a micromechanical model of behavior of paper filaments under compression is proposed and verified experimentally. Based on this model, a novel method of measuring Young's modulus and Poisson's ratio of compressed paper is proposed and demonstrated.
| Original language | English |
|---|---|
| Pages (from-to) | 117-136 |
| Number of pages | 20 |
| Journal | Journal of the Mechanics and Physics of Solids |
| Volume | 128 |
| DOIs | |
| Publication status | Published - 2019 Jul 1 |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Theoretical and experimental study of punched laminate composites protected by outer paper layer. / Kolbasov, Alexander; Sinha-Ray, Suman; Yarin, Alexander.
In: Journal of the Mechanics and Physics of Solids, Vol. 128, 01.07.2019, p. 117-136.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Theoretical and experimental study of punched laminate composites protected by outer paper layer
AU - Kolbasov, Alexander
AU - Sinha-Ray, Suman
AU - Yarin, Alexander
PY - 2019/7/1
Y1 - 2019/7/1
N2 - Lightweight laminate composite sandwich-like materials are one of the most used composite materials. When a laminate composite is punched normally to the surface, the outer skin layer plays a protective role, which is studied in the present work by elucidating the corresponding stress distribution in the core. First, a theoretical framework is developed to predict the stress distribution in the core corresponding to different mechanical properties of the skin. Thus, the location of the highest stress is predicted and a potential failure domain in the core of the laminate composite is established. The theory is verified by novel photoelastic experiments developed and conducted in this work. In addition, a micromechanical model of behavior of paper filaments under compression is proposed and verified experimentally. Based on this model, a novel method of measuring Young's modulus and Poisson's ratio of compressed paper is proposed and demonstrated.
AB - Lightweight laminate composite sandwich-like materials are one of the most used composite materials. When a laminate composite is punched normally to the surface, the outer skin layer plays a protective role, which is studied in the present work by elucidating the corresponding stress distribution in the core. First, a theoretical framework is developed to predict the stress distribution in the core corresponding to different mechanical properties of the skin. Thus, the location of the highest stress is predicted and a potential failure domain in the core of the laminate composite is established. The theory is verified by novel photoelastic experiments developed and conducted in this work. In addition, a micromechanical model of behavior of paper filaments under compression is proposed and verified experimentally. Based on this model, a novel method of measuring Young's modulus and Poisson's ratio of compressed paper is proposed and demonstrated.
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U2 - 10.1016/j.jmps.2019.04.002
DO - 10.1016/j.jmps.2019.04.002
M3 - Article
VL - 128
SP - 117
EP - 136
JO - Journal of the Mechanics and Physics of Solids
JF - Journal of the Mechanics and Physics of Solids
SN - 0022-5096
ER -