Articles tagged with Structural Engineering
Engineers completed two deployments for the James Webb Space Telescope's wings, a crucial step in assembling the telescope's carbon fiber framework. The telescope will hold 18 mirrors and fold up to fit inside a launch vehicle.
Engineers at the University of Wisconsin-Madison have discovered a method for assembling molecules within liquid crystal defects, creating miniscule tubing that can direct molecular organization. This technique has potential applications in electronics, medicine, and designing selective membranes.
Researchers at UT Arlington are developing a new ceramic material that can withstand both extreme heat and collisions, making it suitable for use in spacecraft, power plants, and other applications. The advanced material is created by blending different ceramics within the same family, resulting in added strength.
Engineers can now predict how complex carbon nanostructures form through a new understanding of the forces involved. By analyzing these structures, designers can create nanotube forests with desired mechanical, thermal and electrical properties, leading to breakthroughs in various industries.
A study analyzing Napa quake damage found that pre-1950 buildings in the sedimentary basin suffered the most severe shaking. The West Napa fault system, a lesser-known fault, triggered extensive damage to residential and commercial buildings.
Engineers at NASA's Goddard Space Flight Center tested a 'tripod' supporting the James Webb Space Telescope's secondary mirror in a successful deployment. The system was designed to unfurl in space to 8 meters long and was tested using the Pathfinder backplane structure.
Researchers developed a nonlinear acoustic technique to detect damage previously invisible to acoustic imaging systems. This breakthrough enables intervention before cracks form and predicts the remaining life of engineering structures.
Researchers at UC San Diego used mesh-free simulation to analyze skeletal muscle tissue, finding loss of force exceeds loss of volume with aging. The method cuts back on processing time and can be applied to study injuries from extreme events.
A team of researchers combined precision model experiments with computer simulations to study coiling patterns, discovering that natural curvature dramatically affects the process. The study has practical impacts on everyday life, including understanding transoceanic communication cables and rodlike structures.
Researchers from Brown University developed a mathematical model that helps engineers control wrinkle, crease, and fold structures in various materials. The model shows that at low compression, wrinkles form across the surface, but as compression increases, critical points lead to the localization of ripples into sharp creases.
Researchers identified a mutated enzyme called LovD9 that produces simvastatin 1,000 times more efficiently than the natural enzyme. The team used computer simulations and X-ray crystallography to determine the molecular structures of both enzymes, revealing subtle variations in their behavior when immersed in water.
Researchers are studying ways to selectively use high-performance fiber-reinforced concrete in buildings, exploring its potential to improve strength without increasing costs. The approach focuses on using advanced materials only at vulnerable joints, such as beam-column connections, to enhance structural resilience.
A Concordia University study found that snowplows are the main culprit in erasing roadway markings, which can lead to traffic accidents. To address this issue, researchers suggest using more expensive and durable epoxy paint, which could save lives in the long run.
Researchers from University of Southern Denmark engineer controlled assemblies of artificial vesicles, resembling natural tissues in architecture and functionality. The new systems have potential applications in personalized medicine, studying cells, and as small bioreactors.
University of Cincinnati researchers are developing validation metrics that could help predict the success or failure of hypersonic aircraft. The metrics involve principal component analysis (PCA) decomposition of simulation and test data to measure uncertainty, which will ultimately determine the success in building such a plane.
Researchers at the University of Oregon have captured fundamental new insights about the stability of gold nanoparticles, which could enhance or destabilize their properties depending on use. Smaller nanoparticles exhibit better structural integrity than larger ones, making them suitable for applications where stability is crucial.
The UC San Diego shake table, the world's largest outdoor shake table, has been used to test various structures including wind turbines and buildings. A robot called SkySweeper, designed to inspect utility lines, also won an award for its innovative technology.
Aerospace engineers can now detect adhesive failures in hard-to-reach places more quickly and precisely using the right ultrasonic frequency. The selection process could save time and effort for engineers performing maintenance on complex composite materials.
Nikhil Gupta, a NYU-poly professor, has been recognized with the ASM International Silver Medal for his work on lightweight composites. His research on polymer-based composite materials and metal-based blast armor has significant applications in reducing fuel consumption and improving safety.
Researchers from Aarhus University used advanced bio-imaging techniques to discover that geckos shed their tails along pre-formed score lines. This process is independent of protein-cleaving enzymes and involves microstructures at the ends of muscle fibers, facilitating a quick getaway for these lizards.
Scientists have developed a way to create dynamic microtubes by synchronizing the movement of tiny Janus spheres. This process allows for the formation of intricate structures with potential applications in medicine and engineering.
A University of Tennessee professor has received $300,000 in funding from the US Department of Energy to develop High-Entropy Alloys for improved structural materials. The goal is to enhance efficiency in coal-fired power plants, reducing carbon footprint and lowering fuel costs.
Researchers have discovered a highly complex structure in the mantis shrimp's club that enables it to withstand 50,000 high-velocity strikes. The unique structure could inspire new materials for military body armor, vehicle frames, and aircraft frames, reducing weight while maintaining impact resistance.
Researchers at Duke University have developed a new technique to assemble crystalline structures using varying concentrations of microscopic particles and magnetic fields. They demonstrated the creation of over 20 programmed structures, paving the way for advanced optics, data storage, and bioengineering applications.
Researchers at Ames Laboratory have designed a method to evaluate different conductors for use in metamaterial structures. The team evaluated various conducting materials, including graphene and high-temperature superconductors, but found that silver and gold remain the best conductors for use in metamaterials.
A Wayne State University researcher is working on a new method to calculate the odds of structural failure in complex engineering structures. The goal is to achieve greater consistency within a structure while maintaining feasible computational costs. This approach has wide-ranging implications for various fields, including electrical,...
Researchers will subject concrete footings and steel columns to simulated earthquake stresses to understand their behavior. The study aims to make skyscrapers safer and less expensive to build by optimizing foundation design.
The Christchurch earthquake ruptured a previously unmapped fault, causing widespread liquefaction-induced damage. Eight papers focus on structural and geotechnical damages associated with strong ground motion shaking.
Scientists at the University of California at Berkeley developed a technique to direct benign viruses to self-assemble into thin-film structures with complex properties. By controlling the physical environment, they created films with specific bending properties and guided cell growth, shedding light on biological tissue assembly in na...
Researchers used a 16-foot-high steel bridge and four hydraulic shake tables to test the seismic behavior of a curved bridge with vehicles in place. The results will be used to frame changes to current codes and lead to safer bridges during strong earthquakes.
Researchers warn that building codes may overestimate safety in regions prone to both seismic and wind hazards, increasing the risk of structural damage. A new method assesses combined risks using a common metric, showing that dual-hazard conditions can double the risk of failure.
Researchers link inadequate connections between building members to excessive damage from tornadoes. While modern codes are generally adequate, their enforcement is often lax. The study's findings underscore the need for better building practices and code compliance to reduce storm damage.
University of Illinois researchers developed a simple method to create intricate lattice structures using triblock Janus spheres. The innovative material exhibits self-assembly capabilities, enabling the creation of porous sheets with tailored properties for specialized filtering applications.
Scientists have created tiny spheres that can form unusual structures by attracting and repelling each other in water, leading to the discovery of a new class of smart materials. The researchers hope to explore colloid properties and engineer more unnatural structures.
Australian researchers found that as fatigue progresses, speech slows and variations in pitch increase, indicating a loss of control over the muscles producing speech. The study provides a novel method for analyzing the effects of fatigue on the central nervous system through acoustic analysis.
Researchers at Case Western Reserve University have imaged atomic structural changes in sapphires that control their properties. These changes, called dislocations, involve small rearrangements of aluminum atoms and can affect the material's electrical, chemical, and magnetic properties as well as its strength and durability.
The 2008 Wenchuan earthquake, a magnitude 7.9 rupture, resulted in over 80,000 fatalities and left four million homeless. The event showcased China's capability to demonstrate its earthquake science program to the global community.
Researchers propose using wireless nano sensors to monitor structures for early crack detection and structural damage. The feasibility study suggests these sensors could improve safety by detecting problems before they become critical.
A team of US engineers is traveling to Chile to document the effects of a massive 8.8 magnitude earthquake that struck on February 27. The team will focus on soil and geologic conditions, as well as the performance of engineered structures in the quake.
A five-person team from the University of Washington assessed damage in Haiti after a magnitude-7 earthquake. The team found that much of the loss of human life could have been prevented by using earthquake-resistant designs and construction.
Cornel Sultan's research aims to develop new controllable structures with 'tensional integrity' using insights from cell biology. This could lead to improvements in tissue and organ reconstruction, energy harvesting and robotics applications.
Researchers at UC San Diego's Englekirk Structural Engineering Center conducted comprehensive shake tests on semi-gravity reinforced concrete cantilever walls. The project aims to improve the seismic design of California's thousands of miles of retaining walls, ensuring safer transportation systems.
Stanford researchers recommend vertical evacuation as a safer alternative to fleeing tsunamis, but only if buildings are reinforced to withstand both earthquakes and tsunamis. The approach could save thousands of lives, especially in cities like Padang where residents live in high-risk zones.
This pioneering research projects recreate authentic sounds of the past using acoustics, enhancing our understanding of heritage and its impact on daily life. By studying past events through sound, researchers improve acoustic preservation of old buildings and design new ones to mitigate noise pollution.
The research team will investigate the role of structural components in knee ligament sprains, combining micro-mechanical models, molecular models, and biological and mechanical experiments. The study aims to clarify micro-structural changes associated with partial and complete tears.
A UT Knoxville-led research project is exploring the East Tennessee Seismic Zone (ETSZ) to better understand seismic activity and its impact on future earthquakes. The study aims to provide new information on past quakes and inform the planning of new large engineered structures.
Researchers have developed a microscope capable of live imaging at double the resolution of fluorescence microscopy using structured illumination. This advancement will help scientists study cellular behavior and mechanisms important for human disease with enhanced detail.
Researchers use simulated earthquake tests to improve seismic assessment tools and critical retrofit designs for non-ductile reinforced concrete frames with masonry-infilled walls. The project aims to assess the resistance of these structures under realistic seismic load conditions, developing reliable analytical models to evaluate the...
The study analyzed the angular rotation of gecko joints during locomotion on horizontal surfaces, revealing spatio-temporal rotation trajectories. It also compared the movement patterns of geckos on vertical walls, showing differences in joint angles and limb phases.
A team of researchers at UCLA has modeled the structure of the largest cellular particle ever crystallized, proposing ways to engineer vaults for targeted drug delivery. The proposed atomic structure consists of a barrel-shaped shell with 96 identical protein chains, offering a human-friendly nanocontainer for therapeutic applications.
Researchers have developed a way to use carbon nanotubes to stop bullets from penetrating material and even rebound their force. This could lead to more effective bulletproof materials that avoid blunt force trauma and critical organ damage.
Researchers develop technique to identify and repair small cracks in high-performance aircraft wings and polymer composites. A structure infused with electrically conductive carbon nanotubes can detect and repair stress-induced cracks, regaining 70% of its original strength.
New research from MIT reveals a unified explanation for bone's toughness, incorporating several previously proposed theories. The study finds that bone's atomistic structure plays a crucial role in a toughening mechanism that allows it to tolerate small cracks and maintain its strength.
Shirley J. Dyke successfully tested wireless sensors in a simulated structural control setting, demonstrating their potential to reduce damage from earthquakes. The technology has the potential to enable less manpower requirements and far less remodeling of existing structures.
Engineers at UC San Diego's Jacobs School of Engineering used a virtual building to test the impact of the 1994 Northridge earthquake on a 275-ton structure. The virtual model allowed researchers to visualize data from over 600 sensors, gaining new insights into structure performance and enabling 'what if' simulations.
MIT researchers have made a breakthrough in creating morphing vehicles by utilizing rechargeable batteries. The team's innovative approach involves using the expansion and contraction of solid compounds to actuate large-scale structures, allowing for seamless shape changes.
The MIT team uses particle-spring systems to create three-dimensional designs that can find a structure's most efficient form in minutes. Historically, finding new structural forms required physical means, but this method offers a more efficient and sustainable approach.
The National Institute of Standards and Technology (NIST) has released a report with 30 recommendations to improve the safety of tall buildings, their occupants, and first responders. The recommendations aim to enhance fire resistance, prevent progressive collapse, and design buildings for efficient evacuations.
Researchers at Virginia Tech are developing a computational platform to calculate wind loads and structural capacities of low-rise buildings. The goal is to appreciably reduce damage and increase safety for residential, institutional, and commercial structures vulnerable to extreme winds.
Nine UCSD students are conducting nine-week research projects in Japan, Taiwan, and Australia through the Pacific Rim Undergraduate Experiences (PRIME) program. They will work with local researchers to develop their skills in cyberinfrastructure and cultural understanding.