Energy & Green Tech
Geothermal heat offers a promising source of renewable energy with almost zero emissions, but it remains a relatively expensive option to generate electricity. A new technique proposed by Penn State scientists may help prevent ...
Sep 20, 2023
0
57
Engineering
Why are scientists setting off small-scale explosions inside 1-foot cubes of plexiglass? They're watching how fractures form and grow in a rocklike substance to see if explosives or propellants, similar to jet fuel, can connect ...
Jun 16, 2022
0
26
Engineering
Forces of nature have been outsmarting the materials we use to build our infrastructure since we started producing them. Ice and snow turn major roads into rubble every year; foundations of houses crack and crumble, in spite ...
Jun 21, 2021
1
27
Engineering
Most structures and materials have defects, and if the conditions are right, these defects can lead to the initiation and propagation of cracks. Finding out where and with what orientation a surface crack is most likely to ...
Mar 26, 2020
0
132
Engineering
The Structures Technical Discipline Team (TDT) was involved in numerous investigations this past year, but composites, fracture mechanics, and pressure vessels dominate the list. All three of these specialties are important ...
Apr 5, 2024
0
0
Engineering
Fracture propagation is ubiquitous across different temporal and spatial scales. Examples include the breaking of a vase, fatigue cracks in machine parts, and scars left by strong earthquakes. Understanding 3D fracture propagation ...
Jan 24, 2024
0
1
Engineering
Minimizing energy consumption is a fundamental element in our journey towards sustainable societies, and advanced materials play a key role in this regard. Carbon-fiber-reinforced plastics (CFRPs) and carbon-fiber-reinforced ...
Nov 16, 2023
0
14
Engineering
One of the many ways to reduce the energy required for transportation is to make vehicles lighter. High-strength (HS) steel is perfect candidate materials for this purpose, as its higher weight-to-strength ratio allows for ...
Mar 29, 2023
0
13
Engineering
Researchers from Skoltech and Gazpromneft-STC have patented a technique that uses machine learning to get the most out of hydraulic fracturing, a technology employed by oil and gas companies to maximize well production. Based ...
Jul 27, 2022
1
22
Engineering
If a rock deep in the subsurface cracks and fails under pressure and temperature change, can the sound it makes be heard and identified? Finding the specific sound a rock makes when it cracks and breaks seems impossible when ...
Mar 30, 2022
0
64
A fracture is the (local) separation of an object or material into two, or more, pieces under the action of stress.
The word fracture is often applied to bones of living creatures (that is, a bone fracture), or to crystals or crystalline materials, such as gemstones or metal. Sometimes, in crystalline materials, individual crystals fracture without the body actually separating into two or more pieces. Depending on the substance which is fractured, a fracture reduces strength (most substances) or inhibits transmission of light (optical crystals).
A detailed understanding of how fracture occurs in materials may be assisted by the study of fracture mechanics.
This text uses material from Wikipedia, licensed under CC BY-SA
