Related Experiment Video

Updated: Jul 11, 2026

Fragility Assessment of Bovine Cortical Bone Using Scratch Tests
08:36

Fragility Assessment of Bovine Cortical Bone Using Scratch Tests

Published on: November 30, 2017

Polycrystalline echinoderm calcite and its fracture mechanics

P L O'neill

    Science (New York, N.Y.)
    |August 7, 1981
    PubMed

    More Related Videos

    A Millimeter Scale Flexural Testing System for Measuring the Mechanical Properties of Marine Sponge Spicules11:25

    A Millimeter Scale Flexural Testing System for Measuring the Mechanical Properties of Marine Sponge Spicules

    Published on: October 11, 2017

    Characterization of Calcification Events Using Live Optical and Electron Microscopy Techniques in a Marine Tubeworm15:39

    Characterization of Calcification Events Using Live Optical and Electron Microscopy Techniques in a Marine Tubeworm

    Published on: February 28, 2017

    Related Concept Videos

    Microcracking in Concrete01:20

    Microcracking in Concrete

    Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...
    Fatigue01:21

    Fatigue

    Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
    Stress-Strain Diagram - Brittle Materials01:24

    Stress-Strain Diagram - Brittle Materials

    Brittle materials, including glass, cast iron, and stone, exhibit unique characteristics. They fracture without considerable change in their elongation rate, indicating that their breaking and ultimate strength are equivalent. Such materials also show lower strain levels at the point of rupture. The failure in brittle materials predominantly results from normal stresses, as evidenced by the rupture created along a surface perpendicular to the applied load. These materials do not display...
    Behavior of Concrete Under Compressive Load01:23

    Behavior of Concrete Under Compressive Load

    Concrete exhibits specific behaviors under different compressive loads. Understanding this is crucial for understanding its structural integrity. When concrete undergoes uniaxial compression, it tends to develop cracks that run parallel to the direction of the force. These parallel cracks stem from localized tensile stresses that occur perpendicular to the compression direction. Additionally, angled cracks may appear due to the formation of shear planes.
    As the concrete specimen fractures under...
    Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity01:15

    Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity

    Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.