Fracture Strength
Fracture Strength - Related Videos
10:09
Tensile Strength of Resorbable Biomaterials
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2023
Source: Peiman Shahbeigi-Roodposhti and Sina Shahbazmohamadi, Biomedical Engineering Department, University of Connecticut, Storrs, Connecticut For over 4000 years, sutures have been used as a medical intervention. The earliest records indicate linen was the biomaterial of choice. Catgut, which is still in use today, was reportedly used to treat gladiators around 150 AD. Today, there are numerous materials being used for sutures. Sutures are classified by their composition (natural or...
06:17
Measuring the Strength of Mice
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Cited by 287 •
2013
Deficits in muscular strength occur in many clinical conditions such as motor neuron disease. The inverted screen and weight lifting tests described here measure strength in mice almost exclusively, with minimal influence of factors such as coordination.
03:05
Acid Strength and Molecular Structure
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2020
Binary Acids and Bases In the absence of any leveling effect, the acid strength of binary compounds of hydrogen with nonmetals (A) increases as the H-A bond strength decreases down a group in the periodic table. For group 17, the order of increasing acidity is HF < HCl < HBr < HI. Likewise, for group 16, the order of increasing acid strength is H2O < H2S < H2Se < H2Te. Across a row in the periodic table, the acid strength of binary hydrogen compounds increases with increasing...
08:04
Proximal Cadaveric Femur Preparation for Fracture Strength Testing and Quantitative CT-based Finite Element Analysis
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Cited by 9 •
2017
We present a robust protocol on how to carefully preserve and prepare cadaveric femora for fracture testing and quantitative computed tomography imaging. The method provides precise control over input conditions for the purpose of determining relationships between bone mineral density, fracture strength, and defining finite element model geometry and properties.
01:30
Relation Between Tensile Strength and Compressive Strength of Concrete
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2024
Concrete is a fundamental building material, and understanding its strengths is crucial for construction projects. The relationship between its tensile and compressive strengths is intricate, showing that while these strengths are related, they do not increase at the same rate. Tensile strength's growth is slower and is affected by various factors such as the methods used for testing, the size and shape of the specimen, the texture of the aggregate used, and the moisture content of the concrete.
FAQs
Larger cracks generally make failure more likely because they increase the severity of stress concentration at the crack tip. Geometry also affects how applied loads are distributed through a component. Consequently, two specimens made from the same material can exhibit different fracture strength when their crack dimensions or structural shapes differ.
Material toughness describes a material’s resistance to crack growth, so it helps determine how much damage can be tolerated before unstable propagation occurs. Fracture strength should therefore be interpreted alongside toughness rather than as an isolated value. This distinction is important when comparing candidate materials for load-bearing biomedical designs.
Fracture strength depends on the conditions under which stress is applied, including the mechanical loading experienced by a component. In bioengineering, the relevant conditions may also include physiological loading associated with use in the body. Matching the evaluation conditions to the intended environment improves predictions of structural reliability and failure.
A meaningful evaluation should account for crack size, material toughness, specimen or component geometry, and the applied loading conditions. These variables govern the stress intensity at a crack tip and determine whether crack growth remains stable or becomes uncontrollable. Controlling or documenting them makes comparisons between materials and designs more informative.
Comparing fracture strength helps researchers assess metals, ceramics, polymers, and composites for implants and other biomedical devices. The comparison should reflect each material’s toughness, geometry, crack condition, and intended loading environment. Results can identify materials or designs better suited to reliable structural performance under mechanical or physiological demands.
For tissue-engineered scaffolds and implants, fracture-strength evaluation provides evidence about whether a structure can withstand its expected loading without catastrophic crack propagation. The findings support safer designs, more durable materials, and improved prediction of failure. They also connect material selection and structural geometry with the reliability required in biomedical applications.