“Biology has an incredible diversity of species, which can provide us new design cues and synthetic routes to the next generation of advanced materials for light-weight automobiles, aircraft and other structural applications”
Inspired by mantis shrimp, researchers design composite material stronger than standard used in airplane frames
Inspired by the fist-like club of a mantis shrimp, a team of researchers led by University of California, Riverside, in collaboration with University of Southern California and Purdue University, have developed a design structure for composite materials that is more impact resistant and tougher than the standard used in airplanes.
“The more we study the club of this tiny crustacean, the more we realize its structure could improve so many things we use every day,” said David Kisailus, a Kavli Fellow of the National Academy of Science and the Winston Chung Endowed Chair of Energy Innovation at the UC Riverside’s Bourns College of Engineering.
The peacock mantis shrimp, or stomatopod, is a 4- to 6-inch-long rainbow-colored crustacean with a fist-like club that accelerates underwater faster than a 22-calibur bullet. Researchers, led by Kisailus, an associate professor of chemical engineering, are interested in the club because it can strike prey thousands of times without breaking.
The force created by the impact of the mantis shrimp’s club is more than 1,000 times its own weight. It’s so powerful that Kisailus needs to keep the animal in a special aquarium in his lab so it doesn’t break the glass. Also, the acceleration of the club creates cavitation, meaning it shears the water, literally boiling it, forming cavitation bubbles that implode, yielding a secondary impact on the mantis shrimp’s prey.
Previous work by the researchers, published in the journal Science in 2012, found the club is comprised of several regions, including an endocuticle region. This region is characterized by a spiraling arrangement of mineralized fiber layers that act as shock absorber. Each layer is rotated by a small angle from the layer below to eventually complete a 180-degree rotation.
In a paper “Bio-Inspired Impact Resistant Composites,” just published online in the journal Acta Biomaterialia, the researchers applied that spiraled, or helicoidal, layered design when creating carbon fiber-epoxy composites. Composites with this design structure could be used for a variety of applications, including aerospace and automotive frames, body armor and football helmets.
In experiments outlined in the paper, which were led by Lessa Grunenfelder, who formerly worked in Kisailus’ lab and is now a post-doctoral student at USC, carbon fiber-epoxy composites were created with layers at three different helicoidal angles ranging from about 10 degrees to 25 degrees.
They also built two control structures: a unidirectional, meaning the layers were placed directly on top and parallel to each other, and a quasi-isotropic, the standard used in the aerospace industry, which has alternating layers stacked upon each other in an orientation of 0 degrees (first layer), -45 degrees (second layer), +45 degrees (third layer), 90 degrees (fourth layer) and so on.
The goal was to examine the impact resistance and energy absorption of the helicoidal structures when they were struck and to quantify the strength after the impact.
The researchers used a drop weight impact testing system with a spherical tip that on impact creates 100 joules of energy at USC with their collaborator, Professor Steven R. Nutt. This replicates testing done by the aircraft industry. Following the tests, they measured external visual damage, depth of the dent and internal damage by using ultrasound scans.
The Latest on: Composite materials
via Google News
The Latest on: Composite materials
- Soft Robots of the Future May Depend on New Materials that Conduct Electricity, Sense Damage and Self-Healon November 11, 2019 at 7:31 pm
The researchers used a class of materials known as liquid crystal elastomers, which are sometimes described as artificial muscles because they can extend and contract with the application of a ...
- Global and China Automotive Lightweight (Materials) Industry Report, 2019-2025 Featuring 24 Manufacturerson November 11, 2019 at 1:30 pm
Lightweight materials include high-strength steel, aluminum alloys, magnesium alloys, and carbon fiber composites. China's development plan for lightweight technology involves the following: ...
- Ballistic Composites Market Size to Grow at a CAGR of 7.6% till 2025on November 11, 2019 at 6:56 am
Read the Full Report Description here https://www.stratviewresearch.com/643/ballistic-composites-market.html The report further mentions about the key manufacturing players Honeywell International Inc ...
- Aerospace Composites Market Outlook 2024: Top Companies, Trends and Growth Factors Details for Business Developmenton November 7, 2019 at 10:14 pm
Nov 08, 2019 (The Expresswire) -- Aerospace Composites Market analysis report contains all study material about Market Overview, Growth, Demand and Forecast Research in all over the world. Global ...
- Why TPI Composites Stock Is Tumbling Todayon November 7, 2019 at 12:19 pm
Matthew is a senior energy and materials specialist with The Motley Fool ... The company also noted that these issues would likely affect its projected results for 2020. Because of that, TPI ...
- The 3D printing materials market is expected to reach an estimated $4.1 billion by 2024 with a CAGR of 19% from 2019 to 2024on November 7, 2019 at 4:15 am
Emerging trends, which have a direct impact on the dynamics of the 3D printing materials industry, include use of bio-inks and gels in the medical industry and increasing use of composite materials.
- RS Composite Pole and Fire Shield™ Successfully Endure Forest Fireon November 7, 2019 at 3:02 am
Until recently, the utility industry has largely relied on building material-related, coupon sized flammability tests to characterize the fire performance of utility poles. For composite poles ...
- Reinforcement of Epoxy Composites with Graphite-Graphene Structureson November 7, 2019 at 2:17 am
The developed compounds, modified by TEG, do not support combustion in the air and belong to the class of flame-resistant materials, Table 3. Table 3 Physico-chemical properties of epoxy composites.
- Gamma Attenuation Coefficients of Nano Cadmium Oxide/High density Polyethylene Compositeson November 5, 2019 at 2:28 am
As indicated from the literatures, employing of nano fillers in radiation shielding is a promising way to develop radiation protective materials. Therefore, there is a high demand for further ...
- BRIEF-Kangde Xin Composite Material' Hearing On Suspected Violation To Be Held On Nov 19on November 4, 2019 at 4:08 pm
Nov 4 (Reuters) - Kangde Xin Composite Material Group Co Ltd : * SAYS SECURITIES REGULATOR WILL HOLD HEARING ON CO'S SUSPECTED VIOLATION OF INFORMATION DISCLOSURE ON NOV 19 Source text in Chinese: ...
via Bing News