Hierarchical Structure Enhances and Tunes the Damping Behavior of Load-Bearing Biological Materials

Qwamizadeh, Mahan; Liu, Pan; Zhang, Zuoqi; Zhou, Kun; Zhang, Yong‐Wei

doi:10.1115/1.4032861

Cited by 34 publications

(26 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The results of the current chapter have been published as a research paper (Qwamizadeh et al, 2016a).…”

Section: Discussionmentioning

confidence: 99%

“…The Poisson's ratio is in the range of 0.25-0.28 for both mineral and collagen components (Gilmore and Katz, 1982;Meyers et al, 2008). The reported density of the collagen is about 1 g/cm 3 (Meyers et al, 2008) and the density of the mineral portion is nearly twice than that of the collagen.…”

Section: Bone Staggered Structure At Primary Levelmentioning

confidence: 95%

“…Applying the boundary conditions shown in Eq. 3-7and (3)(4)(5)(6)(7)(8), the continuity conditions for the stress and velocity at the interface of hard and soft layer within the first Similarly, the stress as well as the velocity continuity conditions at the interface of the first and second unit cells   (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) Considering Eq. 3-16to (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18), a system of equation will be created that can have non-trivial solutions only when the coefficient determinant is equal to zero which finally will lead to the dispersion relation as below…”

Section: Fig 31 Geometrical Condition Of the Layered Structurementioning

confidence: 99%

“…Exploring the damping behaviors and their relations with the architectures in these load-bearing biological materials not only can add insights into their protection functions, but also can provide useful guidelines for developing high loss viscoelastic composites which are highly desired in many industrial areas including vehicle, military, and etc. The dynamic energy dissipation and stress wave decay within load-bearing biological materials are attracting more and more research efforts (Qwamizadeh et al, 2016a;Qwamizadeh et al, 2015Qwamizadeh et al, , 2016bZhang et al, 2015;To, 2013, 2014).…”

Section: Modelingmentioning

confidence: 99%

“…The elastic modulus of the collagen is around ~1 GPa and its maximum strength is approximately 70-150 MPa. The density of the collagen is ~1 g/cm 3 (Meyers et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Mechanical properties of load-bearing biological materials

Qwamizadeh¹

Self Cite

View full text Add to dashboard Cite

Bone, a typical load-bearing biological material, composed of ordinary base materials such as organic protein and inorganic mineral arranged in a hierarchical architecture, exhibits extraordinary mechanical properties. Up to now, most of previous studies focused on its mechanical properties under static loading. However, failure of the bone occurs often under dynamical loading. One of the key functions of load-bearing biological materials, is to protect their inside fragile organs by effectively damping dynamic impact. How those materials achieve this remarkable function remains largely unknown. An interesting question is: Are the structural sizes and layouts of the bone related or even adapted to the functionalities demanded by its dynamic performance? In this thesis, systematic finite element analysis was performed on the dynamic response of nanoscale bone structures under dynamic loading. It was found that for a fixed mineral volume fraction and unit cell area, there exists a nanoscale staggered structure at some specific feature size and layout that exhibits the fastest attenuation of stress waves. Remarkably, these specific feature sizes and layouts are in excellent agreement with those at experimentally observed in the bone at the same scale, indicating that the structural size and layout of the bone at the nanoscale are evolutionarily adapted to its dynamic behavior. Furthermore, This study shows that the nanostructure of bone very well synergizes the two mechanisms to achieve the fast stress wave attenuation which are stress wave scattering due to the protein-mineral interfaces and kinetic energy dissipation due to the viscosity of biopolymer components. Moreover, considering a self-similar hierarchical model, a theoretical approach was established to investigate the damping behavior of load-bearing biological materials in relation to the biopolymer viscous characteristics, the

show abstract

“…The results of the current chapter have been published as a research paper (Qwamizadeh et al, 2016a).…”

Section: Discussionmentioning

confidence: 99%

Section: Bone Staggered Structure At Primary Levelmentioning

confidence: 95%

Section: Fig 31 Geometrical Condition Of the Layered Structurementioning

confidence: 99%

Section: Modelingmentioning

confidence: 99%

“…The elastic modulus of the collagen is around ~1 GPa and its maximum strength is approximately 70-150 MPa. The density of the collagen is ~1 g/cm 3 (Meyers et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Mechanical properties of load-bearing biological materials

Qwamizadeh¹

Self Cite

View full text Add to dashboard Cite

show abstract

Density‐Graded Cellular Solids: Mechanics, Fabrication, and Applications

et al. 2021

View full text Add to dashboard Cite

Cellular solids have gained extensive popularity in different areas of engineering due to their unique physical and mechanical properties. Recent advancements in manufacturing technologies have led to the development of cellular solids with highly controllable microstructures and properties modulated for multiple functionalities at low structural weights. The concept of density gradation in cellular solids has recently gained attention due to its potentials in opening new doors to the development of lightweight structures that offer optimal physical and mechanical properties without compromising their favorable characteristics. Herein, a comprehensive insight into the fundamental concepts, fabrication, and current and potential applications of density‐graded cellular solids in various areas of science and engineering is provided. Cellular solids are broadly classified into two main categories: foams and lattice structures. An overview of the fundamental concepts in each category is presented, followed by details on the characterization approaches and some of the most novel processing techniques utilized in fabricating the structures. The uses of density‐graded structures in load‐bearing, acoustic, and biomedical applications are highlighted. The state of the art in each category and the current trends in application‐specific optimization of density‐graded structures are discussed. The review concludes with an outlook of the future directions in this exciting field.

show abstract

Frequency‐dependent dynamic moduli prediction for general bio‐inspired staggered platelet reinforced composites

et al. 2023

View full text Add to dashboard Cite

Load‐bearing biological staggered composites, like nacre, teeth, and bone, possess an exceptional combination of material properties like high stiffness and high toughness. To date, most of the analytical research are for nacre‐like bio‐inspired staggered composites, with highly overlapped platelets. But the collagen fibril‐like staggered composites, with slender or barely overlapped platelets, are out of their scope. This motivates this work. In this paper, based on the previous research, according to the elastic‐viscoelastic corresponding principle, an analytical model for dynamic properties of general bio‐inspired staggered composites is presented. Moreover, the effect of loading frequency in a wide range is studied. The accuracy of the model is verified by comparison with existing models and finite element simulations. Besides, parametric analyses and sensitivity analysis are conducted thoroughly. The results reveal that besides the platelet concentration and the platelet aspect ratio, the platelet overlap ratio also influences the damping behavior of bio‐inspired staggered composites to a certain extent; for biological/biomimetic composites with a larger overlap ratio, higher loss modulus is possible to be achieved, and the optimal aspect ratio is mostly within [5, 30]. These findings are of great significance to the optimal design of bio‐inspired engineering materials in the future.

show abstract

Hierarchical Structure Enhances and Tunes the Damping Behavior of Load-Bearing Biological Materials

Cited by 34 publications

References 35 publications

Mechanical properties of load-bearing biological materials

Mechanical properties of load-bearing biological materials

Density‐Graded Cellular Solids: Mechanics, Fabrication, and Applications

Frequency‐dependent dynamic moduli prediction for general bio‐inspired staggered platelet reinforced composites

Contact Info

Product

Resources

About