Young's modulus

image of bacterial cellulose and plant cellulose. Biocellulose is produced by an acetic acid-producing bacterium, Gluconacetobacter xylinus (Acetobacter xylinum). The diameter of bacterial cellulose is about 1/100 of that of plant cellulose and Young's modulus of bacterial cellulose is almost equivalent to that of aluminum. Therefore,…

the highest elastic modulus: healthy red blood cell, red blood cell infected by Plasmodium falciparum, or red blood cell infected by Plasmodium vivax? Lowest? What are the implications for disease (i.e., what happens when the infected cells are stiff? Compliant?) The elastic modulus of the red blood cell affected by Plasmodium falciparum is considered to be the highest as it stiffness increases still it reaches the schizont stage of infection .While the lowest elastic modulus is for the cell…

Office Spaces is updating their office chairs and have decided to alter the material and cross section of the arm supports. They have requested our assistance in evaluating several materials through experiments and simulations. The purpose of this experiment is to test these various materials and to recommend a material choice and cross section geometry that will minimize deflection of the arm supports. The following sections of this memorandum will detail several facets of the experiment.…

elastic properties of samples. Depends on the sample, probe has to choose. Generally diamond probe are using to indent very hard surface. The probe radius, half cone angle, poison ratio of the materials all are required during calculation of young’s modulus. We can clearly understand by comparing the before and after image of the indentation. After indentation image will clearly shows the amount of area indented. Generally indentation geometry cause non perpendicular tip-sample…

the force is not central. On the other hand, the G/C12 ratio approaches to unity as the central force field may reduce the fraction of the broken bonds in the network structure of the glass (57). Another parameter is the ratio between Young's modulus and shear modulus E/G. The results indicated 2-dimensional network with non central…

in a simulated body fluid, which is indicative of bioactivity, increased with decreasing PDMS/(TEOS + TiPT). Their extensibility decreased and Young's modulus increased, respectively, with decreasing PDMS/(TEOS + TiPT). The hybrids with PDMS/(TEOS + TiPT) of about 30:70 in weight showed fairly high apatite-forming ability, high extensibilities, and Young's moduli almost equal to those of the human cancellous bones. These new kind of bioactive materials with unique mechanical properties may be…

strain-elastography and shear wave elastography. Strain-elastography evaluates the tissue after being subjected to a force; and shear wave elastography evaluates the production and detection of shear waves. Stain elastography cannot provide an image of elastic modulus and has limitations due to depth. Shear wave elastography can provide an image and improve image quality as well as reduction of image variability. In the end, shear wave elastography is suited better for the clinical settings but…

follows: (1) Carbon Nanotubes can have Young's modulus as high as 1 terra Pascal, so it is ideal as a strong bumper material (2) Carbon nanotubes have the greatest of both tensile strength and elastic modulus. [3] (3) A carbon nanotube is very hard. Standard single-walled nanotubes can tolerate a pressure of about 24GPa without being deformed. The highest pressure that the material can tolerated under experiments techniques is 55GPa. It has a greater bulk modulus of 462-546 GPA than that of the…

In particular, B, G, and E of hexagonal structure are expressed as follows [34]: where B, G, and E are bulk, shear, and Young’s modulus, respectively. The resultant elastic constants, bulk, shear, and Young’s modulus are summarized in Table 2. Here, it can be seen that the B, G, and E are increasing with increasing amount of Si on the A site. This could be attributed to the charge density shown in Table 1. In particular…

change results in increase in stiffness or elastic modulus of the tissue. Hence this phenomenon is the basis of Elastography imaging which depends on the mechanical properties of the tissue [1, 2]. There are three types of elastic modulus namely 1. Young’s Modulus denoted by E - It is the tendency of the object to deform along the axis when the opposing forces are applying along that axis. It characterises the stiffness of the tissue. 2. The shear Modulus denoted by G - It is the ratio of…