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Assignment 2 – SEM212 Due Date – Thursday 10th MayAssignments should be uploaded either as word docs or pdf’s to the appropriate dropbox on DSO.Biomimetics, or biomimicry, is the study of nature to...

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Assignment 2 – SEM212 Due Date – Thursday 10th MayAssignments should be uploaded either as word docs or pdf’s to the appropriate dropbox on DSO.Biomimetics, or biomimicry, is the study of nature to inspire better designs, processes and materials. For instance the designs of early flying machines were inspired by the flight of birds. In materials, biomimetics is often used to assist us in improving fracture resistance by manipulating the structure of the material. This assignment requires you to discuss recent research literature related to the use of biomimetics in developing fracture-resistant materials.Identify an example of a biological organism or process that has been used to create fracture resistant materials. Locate a relevant journal article (or articles) and describe the following:•The key structural feature(s) of the biological organism that are mimicked. •The mechanism of how the biomimetic concept improves the fracture-resistance of the material.•The manufacturing process used to make the material, or incorporate the biomimetic features into the material•The test/s used in the research to show the improved fracture-resistance, including the specific material mechanical properties measured.•Your thoughts on how significant an improvement was made in the material’s fracture properties•Potential applications of the newly developed biomimetic materialAssignments should be no more than 1000 words, and reference at least one journal publication (suggestion – use the ScienceDirect database through the Deakin library, as it has pdf links to the full text of journal articles on-line). References should be cited using an approved style and avoiding plagiarism (see link below). This means you are expected to write the assignment in your words, and not use those of the references you find. Please attach printouts of the first page of each of the journal papers you refer to.http://www.deakin.edu.au/current-students/study-support/study-skills/handouts/refer-plag.phpMarks will be awarded for demonstration of a clear understanding of the biomimetic concepts/processes involved in the topic, understanding and evaluation of the data presented in the literature, thoughtful analysis of the effectiveness/usefulness of the newly developed material concept, and a demonstration of the use of relevant recent literature. Note a marking criteria rubric is provided on DSO.
Answered Same Day Dec 21, 2021

Solution

David answered on Dec 21 2021
121 Votes
Biomimetics: Nacre from mollusk shells as fracture-resistant material
Biomimetics is the field of science which endeavors to develop models and synthesis
materials which are related or mimicked from nature. Biomimetics is the Greek word made
up of bio meaning life and mimesis meaning imitation. Thus biomimetics means developing
or synthesizing materials that imitate nature. This field of science is of great interest to
esearchers in medical industry, artificial intelligence (AI), robotics, nanotechnology and
military. In this regard Japanese researchers are working on various biological systems to
learn how the information is being processed.
The fracture resistant material which is of great importance in present scenario is
nacre of mollusk shells. The mollusk shells contain nacre in the iridescent layer. The material
content is extremely high in this natural composite which accounts for stiffness and hardness.
The studies say that it is three times tougher in magnitude than the material it is made up of.
The reason nacre has become a biomimetics model material is the toughness. No artificial
material can match the toughness of nacre. The a
angement of mineral in nacre is in the form
of polygonal tablets having property of sliding on each other when the material is loaded in
tension. The quasi-ductile nature of nature comes from this mechanism which is the prime
eason for increase in toughness and making it damage resistant. “The shell of the mollusk
abalone, made of essentially calcium ca
onate, has 3000 times greater fracture resistance
than the single crystal of calcite.” (Jackson et al 1988; Cu
ey 1977) Another feature of
iological material is the a
angement of the organic matrix in molecule which occupies
minimum of 3 to 5% of volume but provides...
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